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1. Print data records Set up edit and delete data records Figure 7 7 Standard screens for data records Recipes are combined into a recipe directory which can be used to indicate them on the display and to print and edit them A recipe is located in the recipe directory under its recipe number and its recipe title C7 623 C7 624 Control Systems C79000 G7076 C624 01 1 21 Standard O I Functions Transferring data The C7 OP offers a transfer screen for transferring data records from the records C7 OP to the C7 CPU and back Transfer a data record to the C7 CPU when required by the C7 CPU The data record in the C7 CPU can be overwritten by another data record stored on the C7 OP The active data record can also be transferred from the C7 CPU to the C7 OP and stored on the C7 OP Note Only one recipe data record at a time can be active on the C7 CPU Transmission of data records between C7 OP and C7 CPU is synchronized to prevent uncontrolled overwriting Direct indirect Transmission of data records between C7 OP and C7 CPU can be performed transfer directly or indirectly Direct transmission The variables of the data record are written directly to the defined addresses of the PLC Indirect transmission The variables of the data record are stored in an intermediate storage location on the C7 CPU See chapter 9 for detailed information on the inter
2. Values Format Address only for DB Address no Address type Figure 7 9 Representation of Address for the SIMATIC S7 Example C7 624 2x40 AS Address The AS address is the MPI node address of the chosen CPU This can be adjusted C7 623 C7 624 Control Systems C79000 G7076 C624 01 1 35 Standard O I Functions Working with FORCE VAR Update Values Terminate Updating Process 7 36 Table 10 1 summarizes the operational possibilities during the display of FORCE VAR Table 7 9 Operational Possibilities General You acknowledge every input field by field by pressing E gt ENTER Position the cursor in the line using the keys In the column with the addresses scroll up and down using the keys If the cursor is positioned in the address column you can select the data type to be displayed DB MW EW AW Z T by pressing the keys described above If the cursor is positioned in the Format column you can set the data format to HEX DEC BIN CHR T or C using the above mentioned cursor keys Enter here the number of the address to be displayed or modified and its address using the numeric keypad The cursor can be horizontally offset within the lines and the fields with values 10 lines can be occupied in total The values of the selected addresses are displayed in the value fields in a pre defined format Insert a new variable line before the current line The cursor must be pos
3. Send control jobs to the C7 OP Synchronize data and time between the C7 CPU and the C7 OP Evaluate coupling identifier Recognize C7 OP startup in C7 CPU program Evaluate C7 OP operation mode in C7 CPU program Evaluate C7 OP s ready bit in C7 CPU program Figure 9 5 shows the layout of the interface area You can define the interface area in a data block or a marker area The address of the interface area is to be declared in the configuration This is necessary so that the OP knows where to put the data The interface area is to be determined once per CPU Interface area Address 7 Control checkback bits Job area Reserved Coupling identifier Reserved Reserved Scheduler Figure 9 5 Layout of the Interface Area for the C7 CPU C7 623 C7 624 Control Systems C79000 G7076 C624 01 9 13 Data Areas for Communication between the C7 OP and the C7 CPU 9 6 1 Control and Checkback Bits Introduction Three bytes are available in the interface area for the control and checkback bits Bytes n 0 and n 1 are used to coordinate between the C7 OP and the C7 CPU Byte n 3 is required for the transfer of data records and indirect variables Byte n 1 and n 2 are described below Description of The structure of byte n 0 is shown below The diagram is followed by a byte n 0 description of the individual bits Address n 0 Scheduler Time Date Bits 5 6 Date time 1 New The tr
4. Input delay 0 01 ms The process interrupt response time is calculated from the sum of the times below Process interrupt response time Zahlen wie dt Dez punkte This process interrupt response time elapses from the time a signal is present at the digital input until the first instruction in OB 40 is processed C7 623 C7 624 Control Systems C79000 G7076 C624 01 3 31 Control with the C7 CPU 3 6 4 Diagnostics Interrupt Response Time Diagnostics The diagnostics interrupt response time is the time that elapses between the Interrupt first occurrence of a diagnostics interrupt signal and the calling of the first Response Time instruction in the diagnostics interrupt OB OB 82 In general higher priority interrupts take precedence That means the diagnostics interrupt response time is increased by the program execution time of the higher priority interrupt OBs and interrupt OBs of the same priority which have not yet been processed Calculation The diagnostics interrupt response time is calculated as follows Diagnostics interrupt response time Diagnostics interrupt response time of the C7 CPU diagnostics interrupt response time of the signal module For C7 0 6 ms C7 CPU The diagnostics interrupt response time of the C7 CPU 1s approximately 1 3 ms Calculation 1 3ms 0 6ms 1 9ms 2 ms Example C7 623 C7 624 Control Systems 3 32 C79000 G7076 C624 01 Control with the C7 CPU 3 Test and Referen
5. Numerical Values Entering Numerical Values Limit Values Field with Decimal Places 6 16 In fields that allow the operator to enter a purely numerical value you enter the numerical value character by character using the keypad on the system keyboard In numerical fields the inputs are normally right justified Digits that have already been entered are moved to the left If there is a value in the field already it is cleared completely from the field when the first character is entered Exception Input fields for set points in BIN format for instance when calling the PG functions STATUS FORCE VAR are changed to left justified When input begins the old value does not disappear from the display completely but its bit pattern is overwritten one character at a time You move the cursor in this type of field by pressing the arrow key lt and D with the Shift key activated As soon as you have started entering numbers the relevant field cannot be left until the entry is either confirmed or aborted You can configure limit values for numerical input fields In this type of field a limit value check takes place this means the entered values are applied only 1f they lie within the configured limits If a value outside these limits is entered a system message is displayed and after it has been canceled the old value is restored in the field If a numerical field has been configured with a certain number of decima
6. Commissioning Start Up 2 2 C CPU Mode Selection and DI DO Status Display System Function You can select the system function menu from all operational modes From Menu this menu the following additional menus can be selected e C7 CPU mode selection RUN P RUN STOP MRES e DI DO status display O o i Selection of the You can select the menu by pressing the keys The Shift LED System Function Menu that was lit after pressing Shift goes dark The following menu is displayed SIMATIC C7 SYSTEM FUNCTIONS KEY DI DO Faf F2 F3 Fa F5 Fe F7 Fs Figure 2 3 System Function Menu with Associated Function Keys C7 623 C7 624 Control Systems C79000 G7076 C624 01 2 5 Commissioning Start Up Select Mode Menu 2 6 You select the C7 CPU Modes menu from the system function menu in the following manner e C7 623 by depressing the key Fs or Fe e C7 624 by depressing one of the keys FA Ae The following menu will be displayed MODE STOP is used as an example C7 623 A Current MODE STOP mode RUNP RUN STOP MRES Keys for se lecting mode C7 624 RUNP RUN STOP MRES Fi F2 ra Fa rs re Fz FB keys torse lecting mode Figure 2 4 C7 CPU Modes Menu with Associated Function Keys C7 623 C7 624 Control Systems C79000 G7076 C624 01 Commissioning Start Up Select C7 CPU You select the individual C7 CPU mod
7. Index Error communications direct I O access 3 8 peripheral access power supply 3 7 programming time Error reaction OB 3 7 ESC function Escape key 6 3 Evaluating the screen number Event assignable 4 26 Event message delete number overflow paging through 7 10 texts Event message buffer deleting automatically 7 15 maximum length maximum number Event messages area bit set 9 4 Events parameterizable process alarm Extended character set F Fault messages 1 4 FB FC Fields component of screen entry 7 21 setpoints time Fields for combinated input output First value First Last message setting 6 23 Flash memo er sed load FORCE VAR motified Forward counting Frequency clocks Index 4 Frequency calculation 4 33 Frequency meter parameter Full print out F716 Function calls assignment applies global local Function keyboard image Function keyboard image Function keys LED number Functions of OP C 2 Hardcopy ke 6 4 Help key 6 4 Help LED 7 23 Highest MPI address Hirarchy level Increments Information text Information texts Input cancel left justified 6 16 right justified 6 16 Input fields componenet of screen entry 7 21 properties 7 22 Input range special inputs 2 Input output fields Inputs 3 4 Insert key Integral functions Interface param
8. Parameters can be Dynamic or gt Static In contrast to static parameters dynamic parameters of modules can be changed during running operation by calling an SFC in the user program for example limit values of an analog signal input module In contrast to dynamic parameters static parameters of modules cannot be changed by means of the user program but only via the STEP 7 tool S7 Configuration for example input delay of a digital signal input module A password with a defined password level is required for accessing a protected function The password level corresponds to the authorization level allocated to the operator At the configuring stage the necessary password level can be preset in the range from 0 lowest level to 9 highest level Programming Device Programmable Controller The process image is a component part of the gt System Memory of the C7 CPU At the beginning of the cyclic program the signal states of the input modules are transferred to the process image input table At the end of the cyclic program the process image output table is transferred to the output modules as signal state A process interrupt is triggered by interrupt generating modules as a result of a certain event in the process The process interrupt is signalled to the C7 CPU Depending on the priority of the interrupt the associated gt Organization Block is then processed C7 623 C7 624 Control Systems C79000
9. Parameters that determine the characteristics of the gt C7 CPU and the I O functionality of the C7 Automatic printout of fault and event messages that can be deleted in the event of a buffer overflow C7 623 C7 624 Control Systems C79000 G7076 C624 01 Glossary 5 Glossary Function Function Block H Hardcopy Information Text Inquiry Function Instance Data Block Interface Multipoint Interrupt Glossary 6 In accordance with IEC 1131 3 a function FC is a gt Code Block without Static Data With a function you can transfer parameters in the user program Functions are therefore suitable for programming frequently recurring complex functions for example calculations In accordance with IEC 1131 3 a function block FB is a gt Code Block with Static Data With a function block you can transfer parameters in the user program Function blocks are therefore suitable for programming frequently recurring complex functions for example closed loop controls operating mode selection Output of the display contents to a printer Supplementary user configurable information on messages displays display entries and selection fields The inquiry functions of STEP 7 permit the display of status information on the programming device via one or more C7 systems during the various startup phases and during operation of a programmable controller Each call of a function block in the STEP
10. 6 22 set print parameters Priorities Priority display priority process alarm Pro tool Process alarm 3 7 events parameter block 3 14 priority B 14 Process image update Process image table Process states Procress alarm events 4 24 Program tools Programming error Programming languages 1 ATE porocolins 2 1 5 ProTool Lite I C7 623 C7 624 Control Systems C79000 G7076 C624 01 Index R Range overshoot Range undershoot Reaction to diagnostics messages 5 9 Ready bit 9 15 Real time clock parameter block Recipe addressing wr definition transfer data records 9 19 9 20 Reference functions Relatively constant frequencies resolution 4 35 Repeat function 6 3 Residual buffer area Resolution analog ranges Response time analog output reduction Response time longest Response time shortest Retentive aeras Retentive areas parameter block 3 13 Retentivity B 13 Return destination screen 7 18 Right justified input RUN 7 Run time er B system 3 26 Run time meter RUNP S7 counter S7 timers S7 configuration Scan cycle OB Scheduler bits Scheduler times Schedulers Acitvated 8 9 Changed 8 9 Deactivated Functions 8 9 Schedulers time 8 9 Schedulers times Index 7 Index Screen by directory editing large screens print selecting with a controljob Screen
11. How to Clear the C7 CPU 2 10 If you wish to achieve a neutral state of the C7 you must completely erase the C7 CPU and possibly also the C7 OP The C7 must be switched off You follow the following procedure to completely erase the C7 OP 1 Depress and hold the following keys simultaneously VZ D 2 Switch on the C7 After this operation the C7 OP is cleared After clearing the C7 OP the following items remain e C7 system functions menu e C 7 OP mode selector MODE for loading the configuration There are two methods of erasing the C7 CPU e Erase with the system function C7 CPU Modes e Erase with programming function see programming device manual The complete erasure using the programming device function is only possible when the C7 CPU is in STOP mode How you clear the C7 CPU with the help of the system function C7 CPU Modes is described below 1 Switch on the C7 and wait until the start up tests have been completed The standby message will be displayed 2 Select the system function menu by pressing the O a SHIFT keys HELP The system function menu will be displayed 3 Select the C7 CPU Modes menu in the following manner e C7 623 by pressing the key Ft or Fe e C7 624 by pressing one of the keys Ft ee The menu with the C7 CPU Mode RUNP RUN STOP MRES will be displayed C7 623 C7 624 Control Systems C79000 G7076 C624 01 Procedure in the C7 CPU During Memory Reset What Rema
12. Interrupt class of asynchronous interrupts Priority of possible OBs B 5 System Status List in the C7 CPU Table B 1 Sublists of the System Status list of the C7 CPU Continued Index ID of the Individual Records of the Sublist SZL_ID Sublist Operating statuses of the C7 CPU Information on all stored operating status transitions Information on the last executed operating status transition Information on the current operating status Information on the operating status specified Communication performance parameters on the communications type specified Communications status information on the communications type specified Module status information of all modules in the rack specified Diagnostics buffer All entered event information The x latest information entries Module rack and slot number Module diagnostics Complete module dependent record of the module diagnostics information B 6 Record Contents Sublist Excerpt STOP status STARTUP status RUN status Number of connections baud rates Test and startup parameters Operator interface parameters Diagnostics functions and diagnostics entries Communications via global data parameters Operator interface time specifications Number and type of connections Number of test jobs set up Number of current cyclic operator interface tasks Protection levels of the C7 CPU Diagnostics status data Communications via glo
13. SIEMENS D O D O F O gt a D gt mt wn User Information Introduction Commissioning Start Up SIMATIC Control Control with the C7 CPU C7 623 C7 624 Control System Addressing Parameter Assign ment and Function of the C7 4 Input Output Volume 2 Diagnostics Working with C7 Operating and Monitoring O Manual Operating the C7 General Standard O I Functions Extended O I Functions Data Areas for Communication between the C7 OP and the 9 C7 CPU Appendices SFCs and SFBs in the C7 CPU system Status List in the B O i O U C7 OP Functionality Standard Screens Control Jobs C System Messages SIMATIC C7 and S7 Reference Siemens Worldwide C79000 G7076 C624 01 Glossary Index Safety Guidelines This manual contains notices which you should observe to ensure your own personal safety as well as to protect the product and connected equipment These notices are highlighted in the manual by a warning triangle and are marked as follows according to the level of danger i Danger not taken a Warning not taken Caution ZN Note indicates that death severe personal injury or substantial property damage will resultif proper precautions are indicates that death severe personal injury or substantial property damage can result if proper precautions are indicates that minor personal injury or property damage can result if proper precautions
14. Seconds Minutes Parameter 3 Set date Parameter 1 he n Weekday Parameter 2 8 n 9 Month Day Parameter 3 C7 623 C7 624 Control Systems C79000 G7076 C624 01 Ist language 2nd language 3rd language BCD coded 0 59 0 59 BCD coded 1 Sunday 2 Monday 7 Saturday 1 12 1 31 C 9 C7 OP Functionality Standard Screens Control Jobs System Messages Table C 2 Control Jobs with Parameters Continued 16 Parameters for V 24 interface Parameter 1 Value for parameter 2 Baud rate O baud baud baud baud baud baud Data bits data bits data bits Stop bits stop bit stop bits Parity s even odd gt none TD OP address 1 30 2 Parameter 2 Interface parameters to be set 0 Baud rate i Data bits 2 Stop bits 3 Parity Parameter 3 NOre Or OFrR ON BWN F 1 Number of lines per page 21 Display mode for alarm messages Parameter 1 0 First value oldest message 1 Last value newest message 22 Set display contrast Parameter Parameters 2 3 23 Set password level 19 Printer parameters Parameter 1 Value for parameter 2 Number of characters per line 0 20 characters line 1 40 characters line 2 80 characters line Number of lines per page 0 60 lines page 1 61 lines page 12 72 lines page Parameter 2 Printer parameters to be set 0 Number of characters per line Parameter 1 1 9 1 lowest password level 9 highest password le
15. e System keypad e Function keypad e Soft keypad System Keypad I the key block with the system keys is marked The functionality of the individual keys is explained in table 6 1 Table 6 1 Key Function O Shift key By means of the shift key you can activate the second function of dual assignment keys for example the shifting of numeric keys 1 6 for inserting characters A F The enabled SHIFT mode is indicated by a SHIFT LED which lights up after you press the SHIFT Key The secondary function of a dual assignment key can then be called Numeric keys Input keys for numerical characters 0 9 0 In shift mode of keys 1 6 to Input keys for alphanumeric characters A F The keys have a repeat function When the keys are 3 pressed and held down after a short time delay the input entry is repeated for as long as the key is pressed down Sign key Changes sign from plus to minus f Directory key Displays screen directory seq Section 7 5 m In Shift Lock mode Recipe directory S Acknowledge Acknowledges alarm messages Z ACK key The LED of the key is on when at least one unacknowledged alarm message is present 7 Insert key Pressing the insert key inserts a blank at the current INS cursor position when alphanumeric values are being entered All subsequent characters are moved one position to the right Delete key The delete key deletes the character at the current cursor position
16. sured values become 7FFF and the counter values become FFFF FFFFFF Refer to the grouping External error in Table 5 3 Refer to the grouping External error in Table 5 3 Diagnostics The diagnostics messages listed in Table 5 4 refer to Table 5 3 Table 5 4 lists the diagnostics messages and also possible reactions of the Possible Elimination Assign parameters to module See error under the grouping module error Table 5 3 See error under the grouping Internal error Table KEIN MERKER The error cannot be corrected by the user The module can only be restarted after a reset on the bus Restart C7 CPU The error cannot be corrected by the user The module can only be restarted after a reset on the bus Restart C7 CPU or the analog I O must be recali brated at the manufacturer s factory equipment exchange Refer to the grouping External error in Table 5 3 Refer to the grouping Channel in Table 5 3 9 9 Diagnostics Table 5 4 Reason for the Diagnostics Message Wire break Overflow Underflow Incorrect Parameter 9 10 Source of Error Precondition The measurement range 0 20mA has been set for the channel If a wirebreak check has been assigned then the error is identified by evaluation of the input current of the ana log input channel lt 1 6mA The error is identified after the comparison of the mea sured value i
17. 0541 12 13 2 73 Fax 05 41 12 13 3 50 93053 Regensburg AUT P S 12 Hr Rewitzer Hornstr 10 09 41 40 07 1 97 Fax 09 41 40 07 2 36 ZN ZN ZN ZN ZN ZN ZN ZN 18069 Rostock AUT Fr Langhammer Industriestr 15 03 81 78 21 71 Fax 03 81 78 21 75 66111 Saarbr cken AUT Hr Muller Martin Luther Str 25 06 81 3 86 22 89 Fax 0681 386 21 11 57072 Siegen AUT P 11 Hr Patz Sandstr 42 48 T 02 71 23 02 2 40 Fax 02 71 23 02 2 38 70499 Stuttgart AUT P 11 Hr M ller Weissacherstr 11 T 07 11 1 37 26 44 Fax 07 11 1 37 29 46 54292 Trier AUT VG 14 P Hr Baldauf L bstr 15 06 51 20 09 23 Fax 06 51 20 09 24 89079 Ulm AUT ZR Hr Birk Nikolaus Otto Str 4 07 31 94 50 3 28 Fax 07 31 94 50 3 34 97084 Wurzburg AUT PIS 13 Hr Vogt Andreas Grieser Str 30 BW 09 31 61 01 4 59 Fax 09 31 61 01 5 42 42103 Wuppertal siehe ZN 45128 Essen AUT P 14 Hr Klein Kruppstr 16 T 02 01 Fax 0201 E 1 Siemens Worldwide SIMATIC Contact in Europe Belgien 1060 Bruessel Siemens S A VP4 Hr Gmuer Chaussee de Chaleroi 116 0032 iB 5 36 25 33 Fax 00 32 2 5 36 23 87 Bulgarien 1113 Sofia Siemens AG Fr Kirova Blvd Dragan Zankov Nr 36 T 003 8 5 70 85 21 Fax 0 03 59 2 68 50 51 Danemark 2750 Ballerup Siemens A S IP Hr Hansen Borupvang 3 T 0045 Maa 77 42 90 Fax 00 45 44 77 40 16 Finnland 02601 Esp
18. 510 This message is output if Either set up the data block or change The data block for the variable the configuration does not exist in the recipe or The recipe data contains errors 511 The data record number in the PLC job or the function key is invalid 512 This message indicates a PLC error The variable which Correct the configuration 1f necessary is transferred with the message identifies the number of a data block that is too short 520 Too many returns stored Go to message level if necessary by pressing ESCAPE key 522 Screen cannot be selected due to inadequate storage 1 Delete unused fields from confi space Results in cold restart with memory optimization guration 2 Configure smaller screen with fewer fields or partition screen 526 Loop through mode is set on C7 Change to Normal mode 536 Disturbance on link between OP and diskette drive Check the physical connection 538 Job and operator access data record simultaneously Repeat your input if it was not executed 539 The data records stored in RAM for recipe no x contain errors they have been deleted Any data records stored in flash memory are still valid 540 The maximum permissible number of data records in memory has already been reached 541 to 550 The specified variable cannot be found in the controller Check the configuration 551 Controller address cannot be found _ C7 623 C7 624 Control Systems C79000 G7076 C62
19. Additional Information Z3 Evaluation in Application Program 4 32 You can find the additional information broken down into bits in Figure 4 8 Byte 8 7654321 0 ol of ol of 1 1 14 1 1 1 1 1 when counter input 1 has triggered process alarm 1 when counter input 2 has triggered process alarm 1 when counter input 3 has triggered process alarm Figure 4 8 Layout of Additional Information Z3 in Declaration Section of OB 40 Additional information Z3 is not used and is set to 01104 The evaluation of process alarms in the application program is described in the Manual 280 C7 623 C7 624 Control Systems C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output 4 4 6 Frequency Counters Overview Application Frequency Calculation Measurement Period Example of Frequency Calculation The universal input 3 assigned as frequency meter provides you with the possibility to continuously count identical edges within a selected time period for a frequency lt 10 kHz Calculation of high frequencies The frequency meter calculates the frequency value from the measured value and the measurement period he signal to be measured is to be connected to the universal input 3 see Chapter 4 4 1 and of the C7 The frequency counter counts the rising edges of the signal to be measured within a time period that can be assigned using parameters From this
20. Dep Energia e Industria Hr Eng C Pelicano Estrada Nacional 117 ao km 2 6 Alfragide Apartado 60300 B 00351 1 417 8503 Fax 0 03 51 1 4 17 80 71 4450 Matosinhos Porto _ Siemens S A Dep Energia e Industria Hr Eng A Amaral Estrada Nacional 107 No 3570 Freixieiro Apartado 5145 BW 00351 5 8 80 111 Fax 0 03 51 2 9 99 20 01 Rumanien 76640 Bucuresti Siemens Birou de consultatii tehnice Hr Fritsch Str Zarii No 12 sector 5 00 40 1 2 23 47 95 Fax 00 40 1 2 23 45 69 5 Av des Baumettes Case postale 1 53 T 0041 REE 83 09 Fax 00 41 21 6 31 84 48 8047 Z rich Siemens Albis AG VHR 3 Hr Engel Freilagerstra e 28 40 T 0041 mi 5 58 82 Fax 00 41 1 4 95 31 85 Slowakische Republik 81261 Bratislava Siemens AG Hr Sykorcin Tovarenska 11 T 00 42 7 Fax 00 42 7 31 21 74 31 63 32 Slowenien 61000 Ljubljana Siemens Slovenija Hr Lavric Dunajska C47 1 32 60 68 T 6 03 86 eN Fax 0 03 86 61 1 32 42 81 Spanien 48011 Bilbao Siemens S A AUT 1 Hr Tapia Maximo Aguirre 18 T 0034 2 4 27 64 33 Fax 00 34 4 4 27 82 39 08940 Cornella de Llobregat Barcelona Siemens S A AUT 1 Hr Ortiz Joan Fernandez Vallhonrat 1 B 0034 3 4 74 22 12 Fax 00 34 3 4 74 42 34 33206 Gijon Siemens S A AUT 1 Hr Huchet Corrida 1 35 08 00 B 0034 ER Fax 00 34 85 34 93 10 15005 La Coruna l Siemens S A AUT 1 Hr Pereira Linares Rivas 12 14 B 0034 ER 12 07
21. General 6 2 Operating Levels Overview Message Level Screen Level Changing Operating Levels 6 6 When operating the C7 you have to distinguish between two distinct operating levels between which you can switch e Message level At the message level current messages are displayed e Screen level At the screen level functions are chosen serviced and executed The message level is the highest level on the C7 At message level waiting event messages alarm messages and system messages are displayed After the C7 is up and running it changes to message level and displays the standby message SIMATIC C7 Vx xx C7 623 Figure 6 3 C7 623 Standby Message Operating Message No 0 The screen level is reached by pressing the ENTER key The first screen to be called is the start screen From the start screen you can branch to other screens depending on the configuration On the screens you can view current process values enter values and initiate functions by means of soft keys The linking of individual screens is referred to as a screen hierarchy If you go to the bottom of the screen hierarchy you go back one stage by pressing the ESC key You can step right back to the start screen if you wish From here you can return to the message level by pressing the ESC key You can also return directly to the message level from a screen depending on the configuration You can ch
22. Representation of The digitized analog value is the same for input and output values of the Analog Values same nominal range The representation of analog values is performed as a two s complement Table 4 6 illustrates the representation of the analog I O Table 4 6 Representation of Analog Values Bitnumber J15 14 13 12 1 10 9 8 7 6 5 4 3 2 1 0 Weighting of the bits VZ 214 213 212 gil 210 29 28 27 26 25 2 2 2 2d 20 Sign Conventions The sign of the analog value is always contained in bit number 15 e o sy e S Resolution 12 Bit The resolution is 12 bit The analog value is entered into the ACCU left justified The unoccupied low significance places are written with 0 Table 4 7 contains an example of a bit pattern showing how the unoccupied places for 12 bit resolution are filled with 0 Table 4 7 Bit Pattern of a 12 bit Analog Value Example 12 bit analog value incl 0 l 0 0 0 1 l 0 0 l sign C7 623 C7 624 Control Systems C79000 G7076 C624 01 A 11 Addressing Parameter Assignment and Function of the C7 Input Output 4 3 4 Representation of Analog Values for the Measurement Ranges of the Analog Inputs Overview The tables in this chapter contain the digitized analog values for the measurement ranges of the analog inputs In Table 4 8 you will find the representation of the binary analog values and the associated decimal or hexadecimal representation of the units of the analog value
23. accept any more messages those which have been acknowledged and have departed are the first to be deleted automatically until such time as the configured residual buffer size is reached If this does not free up the residual buffer as many of the oldest event messages are deleted as necessary to reestablish the configured residual buffer size This deleting process is independent of the message priorities If the residual buffer is still not available as many of the older quened event messages are deleted as necessary to restore the residual buffer size If overflow logging has been configured and an operational printer is connected to the C7 a compulsory print out of all the deleted messages is forced If the system message buffer is completely full the oldest message is deleted automatically from the buffer when another system message occurs There is no overflow warning or forced print out of the deleted message as is the case of event and alarm messages C7 623 C7 624 Control Systems C79000 G7076 C624 01 7 15 Standard O I Functions 7 1 7 Printing Messages Overview Direct Message Logging Switching On Off Message Logging 7 16 You can print alarm and event messages by one of the following methods e Direct message logging e Full print out of the message buffer e Forced print out upon buffer overflow see page 7 13 Automatic Deletion Event and alarm messages can be printed upon arrival and
24. arriving departing 2 acknowledged in the order of their occurrence Event Msg Number Display messages in the buffer differentiating between All Messages and Pending Messages Delete all acknowledged and departed messages in the event message buffer 6 Switch on off system messages at overflow of event message buffer Event Msg Display all event messages Ez Sem Operation Set C7 OP operon modes onlin oe rase SO System Define whether the oldest first or most recent last message is to be displayed when several alarm messages are pending Siem Siem Mie pin sem mesage bu Date time Set date and time C7 623 C7 624 Control Systems C 4 C79000 G7076 C624 01 C7 OP Functionality Standard Screens Control Jobs System Messages Table C 2 Overview of Standard Screens Continued Level 1 Level 2 Function Password Level System IF Set interface parameters V 24 IF2 Set interface parameters MPI STATUS Display S7 operands VAR MODIFY Display and modify S7 operands VAR User login via password input User logout and branch back to the message level Password Edit e Display password list e Assign and change passwords and password levels Delete passwords C7 623 C7 624 Control Systems C79000 G7076 C624 01 C 5 C7 OP Functionality Standard Screens Control Jobs System Messages C 3 Control Jobs and Their Parameters Overview Control jobs can be used to trigger functions from the user program in the C7 OP Exam
25. cycle time of the analog input For analog outputs response time of the analog output 3 23 Control with the C7 CPU Longest Response Figure 3 4 describes the cirumstances under which the longest possible Time response time has to be taken into account The state of the observed input changes while it is being read by the PII The change to the input signal will not appear in the PII Operating system The change to the input signal is written into the PIl ab _ ie Cc O Q V am Operating system The change to the input signal will be processed by the user program here The response of the user program to the change of the input signal will be transferred to the outputs here Operating system Figure 3 4 Longest Response Time C7 623 C7 624 Control Systems 3 24 C79000 G7076 C624 01 Control with the C7 CPU Calculation The longest possible response time can be calculated as follows 2 X process input image transfer time 2 X process output image transfer time 2 X operating system run time 2 x program processing time Processing time for S7 timers Input and output delays The input delays are not marked in the diagram Depending on the module however you have to take into account the following delay times For digital inputs input delay times For digital outputs negligible delay times For analog inputs cycle time of the analog input For analog outputs
26. input field infBection 64 the required changes as described The cursor is positioned at the in Section 6 4 Bection 6 4 6 4 end of the input field After confirming your input position the The cursor is positioned at the cursor to make further changes if end of the input field applicable 5 End the editing procedure with 2 You change back to the previous ESC level Print Screen To print a screen to a connected printer please proceed as follows Select the screen to be printed via the The screen contents directory is standard screen SCREENS PRINT displayed but not when choice is the function key or a control job in these cases the corresponding screens are printed immediately Scroll with the keys or The required screen title is dis played to the required screen number or if configured to the screen title Send the screen to the e by pressing The selected screen is sent to the printer m Finish the action B You change back to the previous level C7 623 C7 624 Control Systems 1 20 C79000 G7076 C624 01 Screen Entries Components of a Screen Entry Updating Values for Large Screens C7 623 C7 624 Control Systems C79000 G7076 C624 01 Standard O I Functions Screens consist of entries Precisely one entry is displayed per page on the C7 irrespective of the configured number of lines Lines which may have not been fully configured are displayed as blank lines An example of
27. then the stored parameters will be loaded with the exception of the MPI parameter If no SDBO is present in the flash memory then the standard parameters of SDB2 will be set Caution After the last storage of the program in the flash memory of the C7 CPU STEP 7 Copy RAM to ROM the set parameters will be lost after the next erase with exception of the MPI parameters 3 9 Control with the C7 CPU 3 5 1 Parameter Block Clock Memory Definition Clock Clock memories are memories which periodically change their binary states Memory at fixed frequency in a pulse pause ratio 1 1 Eight fixed frequencies are defined for C7 which can be allocated to any arbitrary memory byte The period times can be found in Table 3 1 Clock Period Figure 3 1 shows the period times and the corresponding clock frequencies Times generated by the clock memory byte Clock memory byte Period time and corresponding frequency Bt 76543210 0 1 seconds corresponding to 10 Hz 0 2 seconds corresponding to 5 Hz lamp flicker 0 4 seconds corresponding to 2 5 Hz fast lamp flash 0 5 seconds corresponding to 2 Hz 0 8 seconds corresponding to 1 25 Hz lamp flash 1 0 seconds corresponding to 1 Hz 1 6 seconds corresponding to 0 625 Hz slow lamp flash 2 seconds corresponding to 0 5 Hz Figure 3 1 Clock Period Times in Clock Memory Byte Parameter Block Table 3 6 lists the parameters of the parameter block Clock memory C
28. 01 Diagnostics Information I O Read Diagnostics Messages Diagnostics In the diagnostics information we differentiate between permanent and temporary diagnostics errors e Permanent diagnostics errors cannot be influenced by the application program and can only be removed by resetting the C7 CPU complete erase restart or equipment exchange after a fault e Temporary diagnostics errors disappear automatically after a renewed measurement ADC error overrange or underrange error can be removed by the application program perhaps by parameter assignment during the process operations via SFC55 or by means of a manual entry at the connectors correction of the wiring Diagnostics messages will be entered into the diagnostics buffer only if the diagnostics alarm OB OB82 occurs The precondition is that the parameter diagnostics alarm enable yes was assigned Then you can read out the detailed diagnostics messages in addition to the standard diagnostics information using the STEP 7 Tool S7 Info see Manual 231 No entry is made to the diagnostics buffer of the C7 CPU in all other cases The diagnostics message cannot therefore be read out C7 623 C7 624 Control Systems C79000 G7076 C624 01 5 3 Diagnostics 5 2 Diagnostics Data of the C7 Analog I O and Universal Inputs Overview Analog Input Diagnostics Analog Output Diagnostics Layout of Diagnostics Area of the Module 5 4 This sec
29. 01 Operating the C7 General 3 3 3 EES o Setting C7 System Parameters and Language Changing Parameters On line 2 3 66 RaswordProwaion E 3 3 Note The explanations in this chapter relate to the so called Standard screens which are supplied in an standard configuration with the configuration tools ProTool and ProTool Lite The special screens are called up in the standard screens The standard screen may be redesigned for a customized operator interface However the special screens are stored permanently in the C7 firmware and can therefore not be modified C7 623 C7 624 Control Systems C79000 G7076 C624 01 6 1 Operating the C7 General 6 1 Keyboard The C7 623 and C7 624 key layout is ergonomically tailored to the various Keyboard Layout requirements of the device operating modes by means of its arrangement and colored layout SIMATIC C7 623 Soft k i r2 Bra E SF m DC5V RUN BAF m FRCE mm STOP LED Function keypad System keypad Figure 6 1 C7 623 with Keyboard and Display SIMATIC C7 624 All other keys are identical to C7 623 Fa a a a a o irr re C7 624 with Keyboard and Display Figure 6 2 Key Labeling and The C7 is operated by means of a keyboard The keyboard is categorized into Key Functions C7 623 C7 624 Control Systems C79000 G7076 C624 01 6 2 Operating the C7 General three functional blocks see Figure 6 1
30. 12 Fr Schlupmann Schweriner Str 1 05 21 291 5 21 Fax 05 21 291 5 90 38126 Braunschweig AUT P 11 Hr Pelka Ackerstr 20 T 05 31 Fax 28195 Bremen AUT P 12 Fr Ulbrich Contrescarpe 72 B 0421 3 64 24 27 Fax 0421 3 64 28 42 09114 Chemnitz AUT P 11 Fr Aurich Bornaer Str 205 T 0371 4 Fax 0371 4 35 10 35 25 NN 5 5 ZN ZN ZN ZN ZN ZN ZN 01189 Dresden AUT 1 Hr Lehmann Karlsruher Str 111 BW 0351 40 22 2 77 Fax 03 51 40 22 2 74 40219 D sseldorf AUT P 15 Hr Becker Lahnweg 10 T 02 11 3 99 16 64 Fax 02 11 3 99 18 48 99097 Erfurt AUT P 22 Hr Skudelny Haarbergstr 47 T 0361 4 25 23 51 Fax 03 61 4 25 23 50 45128 Essen AUT P 14 Hr Klein Kruppstr 16 T 02 01 Fax 02 01 6 24 28 6 23 31 8 8 60329 Frankfurt AUT P 25 Hr W M ller R delheimer Landstr 1 3 T 0 69 7 97 34 18 Fax 069 7 97 34 42 79104 Freiburg AUT P Hr Thoma Habsburgerstr 132 0761 27 12 2 38 Fax 07 61 27 12 4 46 20099 Hamburg AUT 1 Hr Rohde Lindenplatz 2 040 28 89 30 03 Fax 0 40 28 89 32 09 30519 Laatzen Hannover AUT P 10 Fr Hoffmann Hildesheimer Str 7 05 11 8 77 23 19 Fax 05 11 877 27 39 C7 623 C7 624 Control Systems C79000 G7076 C624 01 ZN ZN ZN ZN ZN ZN ZN 74076 Heilbronn AUT P S Hr Gaul Neckarsulmer Str 59 07131 183 203 Fax 07131 183 3 20 76185 Ka
31. 2 52 39 16 Ukraine 252054 Kiew 54 Siemens Vertretung AUT Hr Liebschner Ul Worowskowo 27 T 007 844 2 16 02 22 Fax 0 07 044 2 16 94 92 Ungarn 1036 Budapest Siemens GmbH AUT 1 Hr Turi Lajos utca 103 T 0036 M 269 7455 Fax 00 36 1 2 69 74 54 C7 623 C7 624 Control Systems C79000 G7076 C624 01 SIMATIC Contact Outside Europe Afrika Agypten Zamalik EGY Cairo ELETECH AUT Hr W Y Graiss 6 Zarkaria Rizk Street P O B 90 T 20 3 3 42 03 71 Fax 20 2 3 42 03 76 Algerien 16035 Hydra Alger Siemens Bureau d Alger Division Energie Hr Bennour ng rue Abri Areski B P 112 213 3 60 40 88 Fax 213 2 60 65 98 Elfenbeink ste Abidjan 15 R C Siemens AG SEMEN Mr Hellal 16 B P 1062 T 2 25 37 46 57 Fax 2 25 27 10 21 Libyen Me ee He S P L A J Siemens AG Branch Libya Hr Wahab Zat EL Imad Building Tower No 5 Floor No 9 P O B 91 531 BW 218 R 4 15 34 Fax 218 21 4 79 40 Marokko Casablanca 05 SETEL S A AUT Hr El Bachiri Immeuble Siemens km 1 Route de Rabat Ain Sebaa BW 212 2 3510 25 Fax 212 2 3401 51 Namibia Windhoek 9000 Siemens ry Ltd Hr Jurgen Hoff 9 Albert Wessels Street Industries North P O B 23125 T 1264 R 6 13 58 59 Fax 2 64 61 6 13 77 S dafrika RSA 2001 Braamfontein Siemens Ltd AUT Hr E Hillermann Siemens House SH 401 Corner Wolmarans amp Biccard Streets RO Box 4583 2
32. 2 Addressing Recipes and Data Records and the Requisite Data Areas Adressing During configuration the recipe is given a name and a number Both the reci Data areas pe name and the recipe number can be seen on the C7 OP The data records you create on the C7 OP are similarly given a name and a number When a data record transfer is initiated from the C7 OP to the C7 CPU the recipe name and the data record number are transferred to the C7 CPU toge ther with the data For this you have to create a data mailbox on the C7 CPU Use the same specifications as were set in the configuration under Area Pointer The values of the data record are written directly to the addres ses on the C7 CPU Data mailbox 1st word 2ndword Reserved __ 3rd word Reserved 4th word 5th word C7 623 C7 624 Control Systems 9 20 C79000 G7076 C624 01 Data Areas for Communication between the C7 OP and the C7 CPU 9 7 3 Synchronization during Transfer Normal Case Transferring data The control and response bits in the interface area synchronize data record records transfer A transfer is normally initiated by an operator input on the C7 OP Transfer C7 OP gt The following description shows the procedure by which the C7 OP sets syn C7 CPU chronizing bits and the manner in which the C7 CPU program has to react to initiated on them C7 OP Table 9 4 Procedure for Transmission Erklarung Bit 0 is checked by th
33. 20 75 20 Fax 61 3 4 20 75 00 Perth Siemens Ltd CS I A Hr A Lostrom 153 Burswood Road Victoria Park W A 6100 T 61 3 3 62 01 42 Fax 61 9 3 62 01 47 Sydney N S W 2064 Siemens Ltd Sidney Industrial Automation Hr Stephen Coop 383 pels Hi me A Amon T 61 Fax 61 5 4 36 6 DA Neuseeland Greenlane Auckland 5 Siemens Ltd Auckland Office CS I A Hr A Richmond 300 Great South Road P O B 17 122 T 64 9 5 20 30 33 Fax 64 9 5 20 15 56 C7 623 C7 624 Control Systems C79000 G7076 C624 01 Glossary C7 623 C7 624 Control Systems C79000 G7076 C624 01 Glossary 1 Glossary ACCU Address Analog I O Area Pointer Authorization Input B Back to Normal Backup Buffer Baud Rate C7 620 Glossary 2 The accumulators are registers in the gt C7 CPU and are a clipboard for load transfer and comparison math and conversion operations An address is the identifier for a specific operand or operand area Examples I 12 1 memory word MW 24 data block DB 3 The analog I O converts analog process values e g temperature into digital values that can be processed by the C7 CPU or converts digital values into analog manipulated variables The area pointer is necessary for exchanging data between the operator panel section and the controller section of the C7 It includes information on the location and size of data areas in the controller External access point to super
34. 21 5 68 46 79 Philippinen Metro Manila Siemens Inc Hr B Bonifacio and amp 4th FI Sterling Centre Bldg Esteban cor de la Rosa a Village 36 A 18 48 18 Fax 63 2 8 18 48 22 Saudi Arabien Jeddah 21412 Arabia Electric Ltd Service Center Hr Kobeissi P O B 4621 T 966 6 6 65 84 20 Fax 9 66 2 6 65 84 90 Singapur Singapore 1334 Siemens Pte Ltd Singapore AUT Hr Ulf Bexell 2 2 Kallang Sector 65 8 41 35 28 Fax 65 8 41 35 29 Stidkorea Seoul Siemens Ltd E A Hr Kang W S Asia Tower Building 9th Floor 726 an dong Kang nam ku C P O Box 3001 82 2 527 77 62 Fax 82 2 5 27 77 19 Taiwan Taipei 106 Siemens Ltd AUT 1 Hr Gulden 6th FI Cathy Life Insurance Bldg 296 Jen Ai Road Sec 4 T 4886 3 3 25 48 38 Fax 8 86 2 7 05 49 75 Thailand Bangkok 10110 Berli Jucker Co Ltd Hr Narong Berli Jucker House 99 Soi Rubia Sukhumvit 42 Road P O Box 173 BMC Bangkok 1000 T 66 3 3671111 Fax 66 2 3 67 10 00 Vietnam Hanoi Siemens AG Representation Office Hr Nguyen Huang Giang 18 Phan BO Chau Street T 84 4 25 6061 Fax 84 4 26 62 27 Australien Australien Adelaide Siemens Ltd Adelaide Office CS I A Hr J Weiss 315 Glen Osmond Road Glenunga S A 5064 T 6 9 3 79 66 66 Fax 61 8 3 79 08 99 Melbourne Siemens Ltd CS I A Hr N Gilholm 544 Church Street Richmond Victoria 3121 T 61 3 4
35. 3 Performance Characteristics of the C7 CPU 00 000 0e 3 4 Or OPU BICCKS cataeiaiaaronn sade venue ees EEEE ERES 3 5 OG7 GPU ParameleiS een cee es vod ae aatne bones boats Peat eae EESE 3 5 1 Parameter Block Clock Memory 2 00 cece eee cence eens 3 5 2 Parameter Block Start Up Characteristics 0 0 0 cece eee 3 0 0 Parameter Block System Diagnostics ccc cee eee eens 3 5 4 Parameter Block Retentive Areas 0 0 ccc eee 3 5 5 Parameter Block Process Alarms 00 cece eee eee nena 3 5 6 Parameter Block Real Time Clock 0 cece eee ees 3 5 Parameter Block Time of Day Alarms 0 000 e eee eee nee 3 5 8 Parameter Block Watchdog Alarms 00 cece ee eee eens 3 5 9 Parameter Block Cycle Behavior 000 cc cece eee eens 3 5 10 Parameter Block MPI Addresses 00000 cece eee eens 3 6 Calculation of the Scan Cycle Time and Response Time of the C7 CPU 3 6 1 Calculation Example for the Cycle Time 0 00 0 cece eee eee 3 6 2 Calculation Example for the Response Time 2000 000 3 6 3 Process Interrupt Response Time 0 0c cece eee 3 6 4 Diagnostics Interrupt Response Time nananana annann 3 7 Test and Reference Data Functions of the C7 CPU 3 8 Load Erase C7 CPU Flash Memory 000 cece ence ee eee 4 Ad
36. 51 Fax 00 34 81 12 03 60 30008 Murcia Siemens S A AUT 1 Hr Martinez Marques de los Velez 13 B 0034 a 23 36 62 Fax 00 34 68 23 52 36 41092 Sevilla Siemens S A AUT 1 Hr de la Fuente ISLA DE LA CARTUJA Paseo de la Acacias s n Edificio Siemens r 0034 2 4 46 30 00 Fax 00 34 5 4 46 30 46 28760 Tres Cantos Madrid Siemens S A AUT 1 Hr Olaguibel Ronda de Europa 5 T 0034 M 8 03 12 00 Fax 00 34 1 8 03 22 71 46021 Valencia Siemens S A AUT 1 Hr Albors Avda Aragon 30 Ed Europa B 0034 B 3 69 94 00 Fax 00 34 6 3 62 61 19 36204 Vigo l Siemens S A AUT 1 Hr Garrido Pizarro 29 B 0034 Ba 41 60 33 Fax 00 34 86 41 84 64 50012 Zaragoza Siemens S A AUT 1 Hr Aliaga Avda Alcalde Gomez Laguna 9 T 0034 78 35 61 50 Fax 00 34 76 56 68 86 Tschechien 60200 Brno Siemens AG Kancelar Brno Hr Tucek Vinarska 6 B 0042 2 43 21 17 49 Fax 00 42 5 43 21 19 86 14000 Praha 4 l Siemens AG Zastoupeni v CR Hr Skop Na strzi 40 T 00 42 2 61 21 50 336 Fax 00 42 2 61 21 51 46 80040 Findliki lstanbul l SIMKO A S AUT ASI 1 Fr Yargic Meclisi Mebusan Cad 125 0090 g 25 10 90 01 706 Fax 00 90 1 25 10 90 07 09 T rkei 06680 Ankara Kavaklidere SIMKO ANKARA Hr Ensert Atat rk Bulvari No 169 6 0090 812 418 22 05 80040 Findikli Istanbul SIMKO TIC ve SAN A S AUT 1 Fr Yargic Meclisi Mebusan Cad No 125 0090 613 2511706 Fax 00 90 212
37. 7 0 If the first word of the job area is not equal to zero the C7 OP evaluates the control job After that the C7 OP sets this data word to zero For this reason the parameters must first be entered in the job area and only then the job number The possible control jobs are listed with job numbers and parameters in Appendix 2 Coupling identifier Byte n 13 The C7 OP enters the coupling identifier in byte 13 C7 623 C7 624 Control Systems 9 16 C79000 G7076 C624 01 Date and Time Scheduler bits C7 624 only Data Areas for Communication between the C7 OP and the C7 CPU Time byte n 15 to n 17 Date byte n 21 to n 24 The date and time can be transferred from the C7 OP to the C7 CPU via control job 41 The following screens show the layout of the data area All inputs are coded in Binary Coded Decimal BCD Time Address 7 0 Date Address 7 0 Byte n 26 to n 31 A scheduler time is a periodically recurring point in time hourly daily wee kly annually at which a predefined function is executed for example e print message buffer or screen e select screen When a scheduler time is reached on the C7 OP the corresponding bit is set in this area Address Scheduler No C7 623 C7 624 Control Systems C79000 G7076 C624 01 Data Areas for Communication between the C7 OP and the C7 CPU 9 6 3 Example for activating a control job Control Job Procedure for the activati
38. 7 user program is assigned a data block which is generated automatically In the instance data block the values of the input output and in out parameters as well as the module local data are stored gt MPI The Operating System of the C7 CPU has 10 different priority classes which control execution of the user program These priority classes include interrupts as for example process interrupts When an interrupt occurs the operating system automatically calls a corresponding organization block where the user can program the reaction desired for example in an FB C7 623 C7 624 Control Systems C79000 G7076 C624 01 LAN Load Memory Memory Marker Bits Memory Reset Message Level Message Logging Module Parameters Glossary A local area network is a bus type transmission medium which interconnects several nodes Data transmission can be serial or parallel over electrical conductors or fiber optic cables The load memory is part of the C7 CPU It contains objects generated by the programming device It is available as a permanently integrated memory Memory marker bits are a component part of the gt System Memory of the CPU which are used to store intermediate results They can be accessed bit by bit byte by byte word by word or double word by double word During a memory reset of the C7 CPU the following memories are cleared e The Work Memory e The write read area of the gt Load
39. Area message at the C7 OP it self or if the acknowledgement should be given by the C7 CPU the corresponding acknowledgement areas are to be configured in the C7 CPU e Acknowledgement area C7 OP C7 CPU The control is informed when an alarm message is acknowledged by an operation at the OP e Acknowledgement area C7 CPU C7 OP The alarm message is acknowledged via the C7 CPU These acknowledgement areas are to be allocated in the configuration when using ProTool and ProTool Lite under area pointers Figure 9 2 shows schematically the individual alarm message and acknowledgement areas The acknowledgement procedure is detailed in Table 9 4 Alarm message area Internal processing linking acknowledgement aree C7 OP C7 CPU Figure 9 2 Alarm Message and Acknowledgement Areas C7 623 C7 624 Control Systems C79000 G7076 C624 01 9 5 Data Areas for Communication between the C7 OP and the C7 CPU Table 9 3 Alarm Message Acknowledgement Procedure O m e e Set alarm message bit in Appropriate acknowledge Alarm message has arrived C7 CPU bit C7 OP C7 CPU is and is unacknowledged reset Set acknowledge bit in Alarm message has been C7 CPU 2 acknowledged or Acknowledge bit C7 OP Acknowledgement via a C7 CPU is set C7 OP operation Reset alarm message bit in Alarm message has C7 CPU departed independent of Acknowledgement condition 1 If Acknowledgement is initiated via the
40. Chuk Hang Road T 85 5 28 70 76 11 Fax 85 2 25 18 04 11 Indien Bangalore 560 001 Siemens Ltd BAN AUT MAP Hr B Sunderram Jyoti Mahal 3rd Floor 49 St Marks Road P O B 5212 91 80 221 21 01 Fax 91 80 2 21 24 18 Bombay 400 018 Siemens Ltd AUT M AP Hr S Mistry Head Office B Building 130 Ganpat Jahav Marg Worli T 91 155 4 93 13 50 60 Fax 91 22 4 95 08 22 Calcutta 700 071 Siemens Ltd CAL AUT MAP Hr D K Ganguli 6 Little Russel Street P O B 715 GO 491 33 2 47 83 74 80 Fax 91 33 2 47 47 83 New Delhi 110 002 Siemens Ltd DEL AUT MAP Hr R Narayanan 4A Ring Road I P Estate P O B 7036 T 91 HEE 81 44 Fax 91 11 3 31 41 78 Indonesien Jakarta 12870 Dian Graha Elektrika Jakarta Power Eng amp Autom Div Hr M Zafrullah JI Gatot Subroto Kov 74 75 Mustika centre Building Floor 2a P O Box 4267 T 62 R 8 30 65 74 Fax 62 21 8 30 74 02 Iran 15914 Teheran Siemens S S K Hr Din Payuh Khiabane Ayatollah Taleghani 32 Siemenshouse P O B 15875 4773 15 ran T 98 ep 61 41 Fax 98 21 6 40 23 89 Japan Tokyo 141 00 Siemens K K ATT Hr Nakamichi Siemens Fujikara Building 8F 11 20 Nishi Gotanda 2 c iome am ao 1B 34 90 44 37 Pai 181 3 34 95 97 92 E 4 Pakistan Karachi 74400 Siemens Pakistan Eng Co Ltd Power Division Hr Ilyas ILACO House Abdullah Haroon Road P O Box 7158 T 92 R 51 60 61 Fax 92
41. Control Systems C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output Exceeding the The universal inputs frequency meter is designed for a maximum frequency Threshold of 10 kHz Frequency A frequency filter is fitted to the input a Warning If the actual frequency exceeds the threshold frequency of 10 kHz then the correct function of the universal inputs can no longer be guaranteed since count pulses will be lost Resolution of With relatively constant frequencies the resolution of the measurement is Measurement higher if you set a longer measurement period Table 4 22 displays the resulution of the measurement according to the configured measurement period Table 4 22 Resolution of the Measurement Measurement Resolution Example of Frequency Period Count Value During Calculated Measurement Frequency can be calculated in P9000 9000 Hz ls 10 Hz increments Frequency can be calculated in 900 0Fz 1 Hz increments Frequency can be calculated in 0 9 0 1 Hz increments Disadvantage of The frequency meter calculates the frequency in longer intervals This means Long that with long measurement periods an updated frequency value is more Measurement seldom available If the frequency continuously changes then only average Periods values are available Disadvantage of Due to the principle of measurement the measurement error increases with a Short Frequency reduction in the m
42. G7076 C624 01 Glossary 9 Glossary Programmable Controller Programming Device RAM Reference Data Retentivity S Selection Field SFB SFC Signal Module Glossary 10 Programmable controllers PLCs are electronic control devices whose functions are stored in the controller in the form of a program The configuration and wiring of a PLC therefore do not depend on the actual functions of the control Programmable controllers and computers have similar structures they consist of a CPU central processing unit with memory input output modules and an internal bus system The I O and programming language are tailored to the requirements of open loop control technology Programming devices are principally personal computers that are industry standard compact and transportable They are characterized by a special hardware and software for SIMATIC programmable controllers A RAM Random Access Memory is a read write memory medium Its memory cells can be addressed directly and their contents changed individually RAMs are used as data and program memories Reference data are used for verifying program execution in the C7 CPU They comprise cross reference lists pin assignment lists program structure list of unassigned addresses and list of missing identifiers The STEP 7 User Manual describes how these data can be read Retentive data areas and retentive timers counters and memory marker bits retain their conte
43. Inc Central Region Hr Luther Crouthamel 4770 Duke Drive suite 381 T 1 iB 13 3 98 96 91 Fax 1 5 13 3 98 98 39 Mukilteo WA 98275 SIA Inc MidwWest Region R Earl Haas 8412 54th Avenue t es T 1 ARELES Fax 1 7 14 5 57 90 61 Plymouth MN 55442 SIA Inc MidWest Region Hr Greg Jaster 13235 45th Avenue No T 41 iF OB 6 40 15 95 Fax 1 7 08 6 40 80 26 Venezuela 1071 Caracas Siemens S A AUT ASI Hr Jesus Cavada Avda Don Diego Cisneros phere wed Los Ruices Ap 3616 Caracas 1010 A 7 Hee 5 83 8 6b Fax 58 2 2 03 82 00 Asien China 510064 Guangzhou Siemens Ltd China suenazien Office Hr Peter Che Room 1134 1157 GARDEN Hotel Garden Tower 368 Huanshi Dong Lu T 86 An 3 85 46 88 Fax 86 20 3 34 74 54 100015 Peig Siemens Ltd China Beijing Office Hr Wolfgan S llner T ret honghuan Nan Lu Chao istrict P O 543 T 86 tO 4 36 18 88 Fax 86 10 4 36 32 13 200090 Shanghai Siemens Ltd China Shanghai Office Hr faa Cui 450 Lin Quin 39 54 10 T 86 EN Fax 86 21 5 39 54 21 110001 Shenyang Siemens Ltd China Shenyang Office Hr Ren Qi Sakei Torch Building 23rd FI 262A Shifu Da Lu Shen He District T 86 R 2 79 02 87 Fax 86 24 2 79 02 86 E 3 Siemens Worldwide SIMATIC Contact Outside Europe Hongkong Hong Kong Siemens Ltd Hang Kong A R O Automation System Division Hr Keiren Lake 7th Floor Regency Centre 39 Wong
44. Lite 3 As soon as the configuration has been loaded the message mode is set and the configured standby message is displayed 4 You can now change to the following levels O o e C7 system function menu e Screens the configuration start screen After a configuration has been loaded this can be started by pressing the key and the configured Start screen will be displayed After this operator actions are only possible in the sequence defined in the configuration If a configuration has been loaded you can reload a new configuration only after activation of the standard screen Load Mode or by means of the configured function Change Mode The modes On line Off line Transfer can be selected from the standard screen see Section KEIN MERKER The function Change Mode immediately activates the corresponding transfer mode If the standard screen or the above function is not available in the currently loaded configuration you must remove the loaded configuration via a memory reset before reloading Detailed descriptions of the Memory reset function can be found in Section 2 3 C7 623 C7 624 Control Systems C79000 G7076 C624 01 2 3 Commissioning Start Up Memory reset procedure 1 Switch off C7 2 Simultaneously depress and hold the keys VZ D 3 Switch on the C7 4 Further actions as described under No configuration loaded C7 623 C7 624 Control Systems 2 4 C79000 G7076 C624 01
45. Manchester M20 2UR Siemens PLC Control Systems Hr Hardern Sir William Siemens House Princess Road 4 46 52 33 T 0044 81 Fax 00 44 61 4 46 52 32 0030 134 47 92 12 E 2 Irland Dublin 11 Siemens Ltd Power amp Automa tion Division Hr Mulligan 8 11 Slaney Road Dublin Industrial Estate B 00353 HH B30 37 Bt Fax 0 03 53 1 8 30 31 51 Island 121 Reykjavik Smith orland H F Hr Kjartansson Noatuni 4 P O B 519 B 00354 th 62 83 00 Fax 0 03 54 1 62 83 40 Italien 40127 Bologna Siemens S p A AUT R10A Hr Tosatti a GO 90 eh 38 45 09 Fax 00 39 R 24 32 13 Sere che AUT R10A iemens S p A Hr Gaspari Via della Volta 92 00 39 30 3 53 05 26 Fax 00 39 30 34 66 20 20124 Milano Siemens S p A AUT R10A Osterreich 6901 Bregenz Siemens AG AUT Hr Madlener Josef Huter StraBe 6 Postfach 347 T 0043 39 r 41 92 72 Fax 00 43 55 74 41 92 88 8054 Graz Siemens AG AUT Hr Jammernegg Strassganger Stra e 315 Postfach 39 2 80 42 80 T 00 43 3 16 Fax 00 43 3 16 2 80 42 85 6040 Innsbruck Neu Rum Siemens AG AUT Hr Mayr SiemensstraBe 24 Postf 9 04 T 0043 iP 13 23 12 60 Fax 00 43 5 12 23 15 30 9020 Klagenfurt Siemens AG AUT Hr Weber Werner von Siemens Park 1 T 0043 Zi 83 3 88 32 43 Fax 00 43 4 63 3 88 34 49 4020 Linz Siemens AG AUT Hr Schmidt Wolfgang Pauli StraBe 2 Posttach 563 3 33 02 95 T 0043 iS 35 Fax 00 43 7 32 3 33 0
46. Memory e The System Memory e The Backup Buffer The user program is reloaded from the flash memory The following memories are cleared in a memory reset of the gt C7 OP e The Work Memory e The Configuration Memory After this procedure the C7 OP no longer contains any user specific data Operating level of the C7 at which any messages triggered in the system are displayed Printout of fault and event messages parallel to display output Module parameters are used to set the module reactions A difference is made between static and dynamic module parameters C7 623 C7 624 Control Systems C79000 G7076 C624 01 Glossary 7 Glossary MPI N Nesting Depth Network Normal Operation OB OB Priority Operating System of the C7 CPU Organization Block Output Field Glossary 8 The multipoint interface MPI is the SIMATIC S7 interface for programming devices It enables several nodes programming devices text displays operator panels to be operated simultaneously at one or several central processing units The nodes with MPI interfaces are networked Each node is identified by an address MPI address A block can be called from another block by means of block calls The nesting depth is the number of simultaneously called gt Code Blocks A network is a number of C7 systems and or S7 300 systems and further terminals such as programming devices via connecting cables for the pur
47. Message number Message priority 7 9 Message text displaying Messages chronicle 7 17 deleting display priority displaying first last Mixed display variant 7 8 Mode selection Mode menu exit MODIFY VAR Modul time limit Motified FORCE VAR MPI station addresses MPI address highest MPI addresses parameter block 3 19 MRES Index 5 Index N Nesting depth 3 4 Non serious system messages 7 6 Normal message Number alarm message event message Numeric keys Numerical values 6 16 O OB B 5 3 6 OB I Startereignis in CPU 314 OB 10 Startereignis in CPU 314 OB 100 Startereignis in CPU 314 OB 121 Startereignis in CPU 314 OB 122 Startereignis in CPU 314 OB 20 Startereignis in CPU 314 OB 35 Startereignis in CPU 314 OB 40 Startereignis in CPU 314 OB 80 Startereignis in CPU 314 OB 81 Startereignis in CPU 314 OB 82 Startereignis in CPU 314 OB 85 Startereignis in CPU 314 OB 87 Startereignis in CPU 314 Off line On line OP functions overview OP operation mode OP restart Operate the C7 what do you require Operating informations Operating system test start up Operation modes Operator functions Operator interface functions Option list Organization block Output special inputs 4 21 Output field component of screen entry Output fields properties Output range addresses p
48. Recipe number selected on the OP 4 Figure 7 8 Transfer screen C7 623 C7 624 Control Systems C79000 G7076 C624 01 1 31 Standard O I Functions Specifying source and destination 1 32 The data record numbers for the source data record and the destination data record must be entered in the transfer screen e The C7 CPU data record is always 0 for both directions of transfer e The C7 OP data record must always be specified as a number gt 0 Example of entering source and destination C7 OP C7 CPU Transfer Source Destina Description tion 11 Source data record 11 is an existing data record on the C7 OP and is to become the active data record on the C7 CPU des tination C7 CPU C7 OP Transfer Source Destina Description tion 22 The source data record is the active data record on the C7 CPU which is to appear on the C7 OP destination after the transfer under data record number 22 If data record number 22 already exists it can be overwritten or not if requested C7 OP C7 OP Transfer i e copying Source Destina Description tion 33 44 Source data record 33 is an already existing data record on the C7 OP which is to be copied as data record 44 If data record number 44 already exists on the C7 OP it can be overwritten or not if requested Note Symbolic value entries in the input fields source and destination The data record numbers from data records alre
49. Start counter Start screen Start Up configuration loaded C7 623 C7 624 Control Systems C79000 G7076 C624 01 State universal input Static parameter Static text component of screen entry STATUS VAR C 5 STL STOP 2 7 for C7 CPU 3 7 Stop counters Substitute value parameter block 4 10 Summary message print 7 17 Super user password Symbolic values System C7 OP operation interface parameters System keyboard image System keypad System message display 7 6 hide System message buffer display C 4 viewing System messages non serious serious System mode key combination System operating functions keys 6 4 System parameters System settings 6 19 System state list C7 623 C7 624 Control Systems C79000 G7076 C624 01 Index T Temporary diagnostics error 5 3 Test functions Threshold frequency counter Time alarm 4 18 Time error Time of day alarm Time of day alarms parameter block Time of day alarm Timer Times B 4 Title screen Transfer data records Transfer screen 7 31 Type of measurement U Universal input addresses Universal inputs B 4 parameter block Update time User data area optimization User data areas functionality 9 3 User rights 6 27 V Values input 6 15 VAR list View event messages C 4 Viewing event messages Voltage measurement range analog I
50. and internal process image of the DO of the digital C7 I O and are displayed in BIN format It is not possible to alter the display It is to be noted that in the STOP state of the C7 CPU the real process state is DO 0 however the last value set by the program will be displayed The selection of the DI DO status display does not require a password level The function can be selected from the System Functions menu e C7 623 by pressing the Fs or keys e C7 624 by pressing one of the keys or C7 623 C7 624 Control Systems C79000 G7076 C624 01 Commissioning Start Up The following data will be displayed DI 11101110 10101010 DO 11101110 10101010 Figure 2 5 DI DO Status Display on a C7 623 Table 2 2 Explanation of the DI DO Status Display in Figure KEIN MERKER Explanation Signal state of the DI DO e 1DI DO set e 0 DI DO reset Pin numbers from to Note The values of the DI DO are read and displayed every 400 ms Any signal changes occurring between two scan points are not indicated Zz Exit the DI DO You exit the DI DO status display by pressing the key Display Zz Exit the System You exit the System Functions Menu by pressing the key Functions Menu C7 623 C7 624 Control Systems C79000 G7076 C624 01 2 9 Commissioning Start Up 2 3 Memory Reset of the C7 Overview C7 OP Memory Reset What Remains after a Memory Reset of the C7 OP Memory Reset of the C7 CPU
51. are not taken draws yourattention to particularly importantinformation on the product handling the product orto a particular part of the documentation Qualified Personnel The device system may only be set up and operated in conjunction with this manual Only qualified personnel should be allowed to install and work on this equipment Qualified persons are defined as persons who are authorized to commission to ground and to tag circuits equipment and sys tems in accordance with established safety practices and standards Correct Usage ZN Note the following Warning This device and its components may only be used for the applications described in the catalog or the technical description and only in connection with devices or components from other manufacturers which have been approved or recommended by Siemens This productcan only function correctly and safely if itis transported stored setup and installed correctly and operated and maintained as recommended Trademarks SIMATIC and SINEC are registered trademarks of SIEMENS AG Third parties using for their own purposes any other names in this document which refer to trademarks might infringe upon the rights of the trademark owners Copyright Siemens AG 1995 All rights reserved The reproduction transmission or use of this documentor its contents is notpermitted withoutexpress written authority Offenders willbe liable for damages Allrights incl
52. buffer View alarm buffer Print alarm buffer Delete alarm buffer Message Acquisition In buffer with date time state C7 623 C7 624 Control Systems C 2 C79000 G7076 C624 01 C7 OP Functionality Standard Screens Control Jobs System Messages Table C 1 Functions of C7 623 and C7 624 Setpoint Input Number or letters X X Symbolic variables X X Display of Actual Value numerical and symbolic SE E Combined Actual Value Display and Setpoint Input Limit Value Limit Value Check of Operator Input of Limit Value Check of Operator Input Input Password Protection also by means of authorization input Screens Maximum number 99 99 Display X X Print X X Screen entries per screen 99 99 Maximum number of fields per screen 300 300 Maximum number of fields per screen entry 32 32 Recipes Maximum number 99 99 View X X Print X X Recipe entries per recipe 99 99 Recipe memory size in Kbytes 4 20 Data records per recipe maximum 99 99 Save fetch data record in from the C7 OP X X Information Text Maximum length characters 320 320 Function Keys Number 16 integrated LEDs Softkeys number tere a Loss Diagnostic Function STATUS FORCE VAR Configurable C7 OP Languages German English French Italian Spanish Russian X X C Changing Languages in Online Mode C7 623 C7 624 Control Systems C79000 G7076 C624 01 C 3 C7 OP Functionality Stan
53. by using the assigned soft keys Using the soft keys beneath the Screen segments outside the symbols lt lt and gt gt you can move viewable display area are displayed the displayed screen segment of the current screen You branch to the next screen by pressing the soft key beneath the appropriate text indicating the name of the screen to be called C7 623 C7 624 Control Systems C79000 G7076 C624 01 6 11 Operating the C7 General Figure 6 5 shows the branch principle with reference to the 8 line display of the C7 624 Basic screen C7 624 Event msg Alarm msg Screens Record StatVAR ForceVAR System Password Figure 6 5 Branching at Screen Level Example for C7 624 8x40 Character Display Figure 6 6 shows the branch principle of the C7 623 4 line display Basic screen C7 623 Event msg Alarm msg gt gt Figure 6 6 Branching at Screen Level Example for C7 623 C7 623 C7 624 Control Systems 6 12 C79000 G7076 C624 01 Operating the C7 General 6 3 1 Setting C7 OP Operation Modes Overview A standard screen can be used to set the C7 OP modes On line Off line and Download You can set the C7 OP modes via the basic screen as long as a configuration which contains this screen is loaded Table 6 3 provides a description of these modes Table 6 3 C7 Operating Modes Operating Mode Explanation On line In On line mode there is either a logical link between the C7 OP and the C
54. change from STOP RUN Alternatively you can also change some parameters in the application program with the SFC 55 to 57 see Reference Manual 235 We subdivide the parameters for the two configuration alternatives into e Static parameters and e Dynamic parameters The following table explains when the static and dynamic parameters are adopted Table 4 1 Time of Transfer of the Parameters from the C7 CPU to the Analog I O Parameter Set with Time of Parameter Transfer Hardware configuration SSTOP gt RUN gt RUN Dynamic Hardware configuration ee gt RUN Assignment of The following parameter blocks permit the assignment of parameters in S7 Parameters for Hardware configuration to define the following characteristics of the analog Characteristics T O e For inputs Basic setting Diagnostics Measurement Alarm cycle e For outputs Basic setting Diagnostics Substitute values Output range Analog Input Table 4 2 provides an overview of the analog input parameters Parameters C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 7 Addressing Parameter Assignment and Function of the C7 Input Output Table 4 2 Analog Input Parameters Parameter Analog Output Value Range Preset Value Basic setting e Enable diagnostic alarm Yes No No Diagnostics e Enable Yes No Configuration parameter error Wire break only 4 20 mA Range undershoot Range overshoot Wire break t
55. directory Screen entries Screen Hierarchy Standard Screens Screen hierarchy Screen level exiting Screen number evaluation Screen number area Screen segment move Screen structure Screen title 7 18 Screen lt a Screens maximum number SDB Second functions keys Section of the system function menu Select directory recipe Select count flank Selecting screens with function keys with softkeys Self test 2 4 Separate display variant Serious system messages Set contrast Setpoints Setting time analog output SFB Pl 9 8 6 3 SHIFT keys 9 8 Sign conventions analog ranges Sign key Index 8 SIMATIC S7 function keyboard image 9 10 p images LED image recipes 9 19 screen number area system keyboard image transfer data records 9 20 SIMATIC S7 connection Scheduler bits 9 14 SIMATIC S7 coupling control and checkback bits coupling identifier date and time job area 9 16 OP operation mode 9 15 OP restart ready bit Size of the acknowledgement areas 9 7 Slot number Slots C7 Softkey bit set Softkeys 6 4 6 11 components of screen entry 7 21 number Special characters Special input addresses counter Special screens screen number area 9 12 Speed C7 CPU Standard operating 6 8 Standard screen screen hierarchy 6 10 Standard screens branching Standby message 2 2 Standby messages
56. in Appendix C Inhibiting System You can inhibit the display of system messages with the exception of Messages internal errors 7xx at the configuration stage System messages whose display has been suppressed continue to be inserted into the system message buffer and can thus be viewed on the display later by selecting the menu System settings System messages System Message The system message buffer can store up to 100 messages System messages Buffer are inserted into it with their message number and their arrival their departure is not recorded Some minor errors and operator errors are not logged in the system message buffer Messages from the system message buffer are displayed in the same order as they arrive this means first in first out last in last out C7 623 C7 624 Control Systems 7 6 C79000 G7076 C624 01 Standard O I Functions 7 1 4 Displaying Messages Overview Event and alarm messages are always output to the display at message level and are displayed according to display and message priorities Select Message You enter the message level by pressing Level ESC Display Sequences Event and alarm messages can be configured with up to 80 characters and displayed either separately or together The differences are explained in Table 7 1 below Table 7 1 Explanation of Display Sequences Display Sequence Explanation Separate With this display variant only one message is shown on the display Exceptio
57. memory 1 Erase the entire contents of the load memory using the appropriate STEP 7 function 2 Activate the STEP 7 function copy RAM to ROM In this way the empty load memory will be loaded into the flash memory Afterwards this is also empty C7 623 C7 624 Control Systems 2 12 C79000 G7076 C624 01 Control with the C7 CPU In this Chapter The C7 CPU is described in this chapter You will learn which languages can be used to program the C7 CPU and which tools are necessary The characteristics of the C7 CPU can be configured using parameters The characteristics that can be configured are described in Chapter 3 5 3 3 3 3 3 3 i Parameter Block Cycle Behavior Response Time of the C7 CPU 2 3 3 Diagnostics Interrupt Response Time 3 7 Test and Reference Data Functions of the C7 CPU Load Erase C7 CPU Flash Memory C7 623 C7 624 Control Systems C79000 G7076 C624 01 3 1 Control with the C7 CPU 3 1 C7 CPU Overview C7 CPU C7 CPU possesses the following characteristics Cheracteristles e 24 Kbytes work memory e 40 Kbytes integrated load memory RAM e 40 Kbytes integrated flash memory e Integrated IM 360 e Speed approx 0 3 ms per 1000 statements e Connection of max 512 digital inputs outputs e Connection of max 128 analog inputs outputs e Buffer battery C7 623 C7 624 Control Systems 3 2 C79000 G7076 C624 01 Control with the C7 CPU 3 2 Programmi
58. number does not exist Too many current control values on screen maximum of 200 permitted Too many fields on process screen Process connection for soft keys does not exist Soft key number too high Information text for soft key not configured or not in all languages Soft key specified in entry does not exist C7 623 C7 624 Control Systems C 26 C79000 G7076 C624 01 C7 OP Functionality Standard Screens Control Jobs System Messages 636 Initiated event messages No x not configured Add to configuration and repeat 637 download 638 The actual value field for event message no x is available 639 in symbolic form only 640 Initiated alarm messages No x not configured Add to configuration and repeat 641 download 642 The actual value field for alarm message no x is 643 available in symbolic form only 645 Internal errors 649 650 Area pointer for function you used not configured Configured area pointer 653 Configured user version number does not agree with that Adjust user version number stored in C7 CPU 655 controller acknowledgement area not physically beyond Re configure C7 CPU C7 O I alarm message bit area serious error no startup acknowledgement areas and repeat download 657 Configured controller driver not supported by version of Change protocol for version of device device you are using serious error you are using and repeat download configuration 659 Invalid variable
59. occurs but the corresponding OB has not been programmed Table 3 5 List of OBs Error Activated OB Possible Start Preset Priority Events of the OB Time error OB 80 3501H 35024 e g initiated by the cycle time monitor 35054 3507H Power supply error OB 81 38224 3922H e g also absence of backup battery C7 623 C7 624 Control Systems C79000 G7076 C624 01 3 Control with the C7 CPU Table 3 5 List of OBs Error Activated OB Possible Start Preset Priority Events of the OB One of the following errors has occurred OB 85 35A1qy 39B1y 26 e Event that triggers OB start e g delay alarm has 39B24 occurred but the relevant OB cannot be executed e Error during update of the process image Communications error OB 87 35E1y 35E2 26 e Wrong message frame identifier when receiving global 35E6H data The data block for the global data status is not available or too short Programming error OB 121 25214 25224 The same prior e g the addressed timer does not exist 2523H 25244 ity as the OB in 2525H 2526H which the error 2527H 2528H has occurred 25294 2530H 2531H 2532p 2533H 2534H 2535H 253AH 253Cy 253EH Error during direct peripheral access defective or absent OB 122 29444 2945H The same prior module ity as the OB in which the error has occurred OB 121 and Please note the following peculiarity of the C7 CPU in connection with OBs OB 122 121 and 122 Note Please note the following
60. of the Analog Outputs Table for Output Table 4 10 contains the analog output ranges of the analog output Ranges Voltage Current Table 4 10 contains the representation of the voltage output range 10V Output Ranges and the current output ranges 20 mA 4 20 mA Table 4 10 Representation of the Analog Output Range of the Analog Outputs Voltage Current Output Ranges Output Output Output Units Range Range Range E 11 7589 32511 7EFFH Upper range 10 0004 20 0007 6COly 10 0000 Nominal range 10 0000 10 0004 Lower range 11 7589 C7 623 C7 624 Control Systems 4 14 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output 4 3 6 Conversion and Cycle Time of Analog I O Introduction You can find the definitions and relationships between conversion time and cycle time for the analog inputs in this chapter Conversion Time The conversion time consists of the basic conversion time and an additional conversion time necessary for the input calibration Cycle Time The analog digital conversion and the transfer of the digitized measured value to the C7 CPU is performed sequentially i e the analog input channels are converted one after the other The cycle time 1 e the elapsed time before an analog input value is converted again is the sum of all conversion times O S5ms channel of all activated analog input channels plus one calibration measurement Unused analog input chann
61. program you can recognize whether a connection to the C7 OP exists Description of Byte n 3 serves to synchronize the transfer of data records and indirect vari byte n 3 ables The meanings of the individual bits are described below Exactly how the transfer works is described in Chapter 9 7 3 Bit 0 1 Data mailbox is disabled is set only by the C7 OP 0 Data mailbox is enabled Bit 1 1 Data record variable is errored Bit 2 1 Data record variable is correct Bit3 1 Data transfer terminated successfully Bit 4 1 Request data record variable Bit5 1 C7 OP should read the data mailbox Bit6 1 Request data mailbox disable C7 623 C7 624 Control Systems C79000 G7076 C624 01 9 15 Data Areas for Communication between the C7 OP and the C7 CPU 9 6 2 Data Areas in the Interface Area Overview In this section the layout and usage of the interface data areas is described The C7 CPU initiates an action to be carried out on the C7 OP by means of the job area All other bytes are areas in which the C7 OP writes data These areas can be evaluated by the C7 CPU program The bytes are individually described below Job Area Byte n 4 to n 11 The C7 OP is passed on the control jobs via the job area The actions on the C7 OP are initiated in this way The job area consists of four words In the first word of the job area is the job number In further words the job parameters are to be entered maximum 3 Address n 4 T7 0
62. program loaded e A control program is loaded e No configuration loaded e A configuration is loaded How you should proceed in these cases is explained in the following sections Load Control The C7 OP must access data in the C7 CPU in order to permit the operation Program and monitoring of the process Therefore the control program must be loaded first of all if this has not already been done You load the application program in the following way 1 Activate the transmission of the application program and the data blocks on your programming device PC by means of STEP 7 2 Set the C7 CPU in the STOP mode see Chapter 2 2 3 Start the copy process from the programming device PC C7 623 C7 624 Control Systems 2 2 C79000 G7076 C624 01 No Configuration Loaded Configuration Loaded Reload Configuration Commissioning Start Up You now select the C7 OP mode in which you can initiate the transfer of a configuration To do this you press the E gt key ENTER The following menu is displayed with the menu item off line SIMATIC C7 Entry field MODE Offline Figure 2 2 Menu for Selection of a C7 OP Mode O SHIFT 1 Select the Transfer function with V Confirm the selection with ENTER The configuration will be loaded via the MPI interface using Transfer 2 Activate the transmission of the configuration to C7 using your programing device PC with ProTool or ProTool
63. recipe directory Contrary to operational messages fault messages indicate critical machine states during the production sequence Due to their importance they must be acknowledged before further actions are possible Fault messages may contain process values The representation of the process values is either numeric for example motor running at 4500 revolutions per second or symbolic Information texts contain supplementary information which makes reference to the current display operational messages fault messages and screens In this manner additional information can for example be displayed suggesting methods for the removal of a fault after receipt of a fault message Messages can be logged on line by means of the printer connected to the operator panel In addition it is possible to print out the operating and fault messages that have accumulated in the respective buffer C7 623 C7 624 Control Systems C79000 G7076 C624 01 Introduction Languages Message texts screens information texts and system messages can be displayed in several languages A maximum of three of the languages listed below can be simultaneously loaded into a C7 and offered to the operator for online selection German English French Italian Spanish Displays can be configured for the C7 624 in Russian that is Cyrillic characters Configuration Before a C7 can be commissioned it must be prepared that is configured for Process the task
64. response time of the analog output Extension of the As a basic principle you must consider that the cycle time of an user Cycle Time program will be increased by Time controlled processing Alarm processing Diagnostics and error processing Communications via MPI Reduction of the You will achieve faster response times by means of direct accesses to the Cycle Time I Os by the user program for example with L PIB or TPQW This method helps you avoid prolonged cycle times as described in Figure 3 4 C7 623 C7 624 Control Systems C79000 G7076 C624 01 3 25 Control with the C7 CPU Operating System The operating system run time is caused by various sequences in the Run Time C7 CPU System Run Times Table 3 16 lists all times relevant for determining the operating system run times of the C7 CPU Table 3 16 Operating System Run Times of the C7 CPU Cycle control Approx 870 us Communications via the multipoint interface Block functions load delete copy extend the cycle by max 10 Communications via the MPI may load the cycle by up to 50 depending on the parameterization in STEP 7 see Section 3 5 9 Updating of the S7 timers 7 us x number of timers currently running C7 CPU self test From 0 to 65 000 us depending on parameterization see Section 3 5 Section 3 5 9 Process Image Table 3 17 contains the C7 CPU times that are applicable to the process Update image update The quoted figures are ideal value
65. situations To support changing requirements during process control you can configure the following aspects which provide the operator with purposeful situation specific help e Screen dependent softkeys e Global function keys e User defined screen hierarchies You can assign function calls to the function keys on the C7 623 and C7 624 You can distinguish here between local and global assignment e Global means that the assignment applies to the entire configuration e Local means that the assignment applies to one screen entry only This makes it possible for the operator to initiate functions as and when required by the situation When the assignment of function keys vary from screen entry to screen entry the keys are referred to as softkeys The following keys can be assigned as softkeys on the different devices Table 8 1 Keys which can be assigned as softkeys C7 623 FIFA F4 These function keys can be configured as softkeys These function keys can be globally assigned C7 624 F1 F8 These keys underneath the display can be configured as softkeys K1 K1KI6 These function keys can be globally assigned Note While configuring softkeys you must make sure that function calls which are required to be permanently available this means also during screen editing are not assigned to keys which are intended to be used as softkeys C7 623 C7 624 Control Systems C79000 G7076 C624 01 Key Assignment Spe
66. start e From 0 e 0 address of to 8191 the data area 3 5 5 Parameter Block Process Alarms Parameter Block Table 3 10 lists the parameters of the parameter block Process alarms Process Alarms The priority of the process alarm OB40 cannot be altered Table 3 10 Parameter Block Process Alarms Explanation Value Range Default Setting Priority OB40 The priority of the OB40 cannot be altered C7 623 C7 624 Control Systems 3 14 C79000 G7076 C624 01 Control with the C7 CPU 3 5 6 Parameter Block Real Time Clock Set Clock You set the C7 CPU clock using STEP 7 or via the SFC 0 SET_CLK in the user program see Appendix A and Reference Manual 235 Parameter Block Table 3 11 lists the parameters of the parameter block Real time clock Real Time Clock Table 3 11 Parameter Block Real Time Clock Explanation Value Range Default Setting Synchronization The synchronization of the real time clock is per None as master None on K bus formed via the K bus Synchronization Not possible None None on the MPI Synchronization Interval during which the real time clock is syn Default interval chronized Seconds ech 10 seconds Minute 10 minutes Hour 12 hours 24 hours Correction factor A deviation of the real time clock is compensated From 10000 to with the correction factor within 24 hours 10000 Example if the real time clock is slow by 4 ms after 24 hours then you must se
67. stored then the load memory remains empty and the C7 CPU has the memory content 0 After clearing the C7 CPU the following items remain The contents of the diagnostic backup The contents can be read out using the programming device System diagnostics parameters Perhaps an user program loaded from the flash memory with newly initialized data The MPI parameters last set C7 623 C7 624 Control Systems C79000 G7076 C624 01 2 11 Commissioning Start Up 2 4 Load Erase C7 CPU Flash Memory Overview During transmission of an application program to the C7 CPU it is transmitted only to the load memory and not automatically into the C7 CPU flash memory also The contents of a C7 CPU flash memory are not automatically reset during a complete erasure of the C7 CPU You must explicitly initiate these actions using a PG function Load Application You must explicitly load the C7 flash memory using the STEP 7 function Program into Flash copy RAM to ROM You do this after you have copied the program and Memory data into the C7 CPU load memory In this way the whole contents of the load memory is transmitted to the flash memory Erase Flash After the complete erasure the load memory is reinitialized with the contents Memory of the flash memory However since you can change the contents of the flash memory only using the STEP 7 function copy RAM to ROM you must proceed in the following manner to erase the flash
68. that require uninterruptible reading of data slow down program execution irrespec tively of the value set for this parameter Exam ple status block reading of system data STEP 7 Maximum cycle time in ms If the cycle time exceeds the maximum cycle From 1 150 time then the C7 CPU reverts to the STOP to 6000 mode if no OB80 is provided for error handling The maximum cycle time can be exceeded due to e g communications processes e accumulation of error events e errors in the user program e g continuous loops Cycle loading due to self test ins For Cyclic self test A 0 then the C7 CPU tests From 0 its internal RAM during the program cycle This to 65000 self test consumes cycle time You can define the time by which the program cycle may be length ened in multiples of 10 us 0 no cyclic self test C7 623 C7 624 Control Systems 3 18 C79000 G7076 C624 01 Control with the C7 CPU 3 5 10 Parameter Block MPI Addresses Multipoint The characteristics of the multipoint interface MPI of the C7 CPU can be Interface MPI assigned parameters with the parameter block MPI addresses You need only process this parameter block if several C7 or S7 300 are networked via the multipoint interface MPI Values after The parameters of the parameter block MPI addresses have a specialty the Memory Reset parameter values are preserved even after a memory reset Reason the c
69. the application program can derive the actual frequency using the following formula Number of positive edges Frequency q y Measurement period The measurement period can be selected using the STEP 7 Function Hardware configuration You can choose between the measurement periods 0 1s 1s or 10s The measurement process is immediately restarted after the measurement period has elapsed so that an updated frequency counter value is always available The measurement period is 1 s During a measurement period 6500 rising edges of the signal to be measured are counted The value 6500 is made available to the application program Frequency e320 6500 Hz C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 33 Addressing Parameter Assignment and Function of the C7 Input Output Frequency During First Measurement Period 4 34 After starting up the C7 OB 1 is processed and the universal input frequency meter is automatically started The Ist valid frequency is calculated after the Ist measurement period Before the end of the 1st measurement period the frequency counter value FFFFFFy is available in the C7 CPU Start up OB100 Cycle OB1 Cycle OB1 Cycle OB1 Preallocated gt J gt ne Valid frequency Start of 1st measurement period 1st measurement period Last frequency before STOP mode or FFFFFFy if POWER ON Figure 4 9 Frequency During First Measurement Period C7 623 C7 624
70. the following parameters are to be set for communication via the MPI Note The following parameters are already assigned generally applicable default values and need not be modified unless the C7 is used in connection with any other S7 C7 or OP units in a network Table 9 1 Parameter Explanation CPU type Control CPU The S7 300 is to be set for the C7 CPU If further CPUs are connected they must be set with S7 300 or S7 400 CPU address MPI address of the C7 CPU in the network configuration The address has a default setting but can also be assigned by the user It must be unique in a network Slot subrack Here you must set the slot and subrack For the C7 the valid setting is Slot 2 Subrack 0 C7 OP address MPI address of the C7 OP in the network configuration The address can be freely issued It must be unique in the network configuration The default value is address 2 Interface Here you determine which interface of the OP the S7 is connected to Baud rate The data transfer rate between the C7 OP and the C7 CPU is fixed at 187 5 kbaud Configuration Tool All settings can be made with ProTool and ProTool Lite under the menu Target System Control C7 Speciality The first control in the list must always be the C7 CPU since the C7 system function DI DO status display always accesses the digital I O of the first control in the list C7 623 C7 624 Control Systems 9 2 C79000 G7076 C624 01 Data Areas for
71. use the following system functions to read and write diagnostics Functions information SFC No Name Description Execution Time SFC 51 RDSYSST Read the information out of the system status list 280 us 200 us data set WR_USMSG Write specific diagnostics information into the diagnostics 110 us buffer Module The C7 CPU places the following system functions at your disposal for Initialization writing and reading initial module parameters Functions SFC No Name Description Execution Time WR_PARM Writing dynamic parameters to a module WR_DPARM Writing predefined parameters to a module ball a PARM_MOD Assigning a module s parameters WR_REC Writing a module specific data record 1 4 ms 32 us byte SFC 59 RD_REC Reading a module specific data record a Reading a module specific data record specific data record 0 49ms 49 0 49ms C7 623 C7 624 Control Systems C79000 G7076 C624 01 A 5 C7 623 C7 624 Control Systems C79000 G7076 C624 01 System Status List in the C7 CPU Introduction The C7 CPU is able to provide you with certain information The C7 CPU stores this information in the system status list This appendix contains the sublists of the system status list provided by the C7 CPU C7 623 C7 624 Control Systems C79000 G7076 C624 01 B 1 System Status List in the C7 CPU Definition Reading the System Status list Sublists Structure of the Sublists B 2 The system status list contai
72. when alpha numeric values are being entered All the characters thereafter are moved one position to the left Enter key With this key you enter and confirm your input This means that among other things you also change from message level to screen level Escape key Escape branch backwards change operating levels see page 6 5 C7 623 C7 624 Control Systems C79000 G7076 C624 01 6 3 Operating the C7 General Function Keypad Soft Keypad 6 4 Table 6 1 Key Function Continued Hardcopy Outputs the current display to the printer eee key Print Help key displays information text Arrow keys Browse the symbol list Display contrast adjustment Select system functions menu Note When the assigned LED is on information text relating to the current display can be viewed on the screen seq Section 6 5 Move the cursor Depending on the operating situation the cursor is moved one character field entry or display to the left right up or down The keys have a repeat function When the keys are pressed and held down after a short time delay the input entry is repeated for as long as the key is pressed down Browses through the list of symbols and calls up extended character sets Adjusts the display s contrast The menu for choosing the C7 CPU operating modes RUNP RUN STOP and MRES is displayed The DI DO condition is also displayed The menu can be selected from every l
73. 0 99 O Cursor positioned to first entry RB Field number 0 1 The input fields of an entry are numbered consecutively 0 Entry number field 1 First input field nLast input field The numbering of the input fields starts at 1 again for each entry Output fields are ignored by the serial numbering system 54 Print recipe Parameter 1 Recipe number 1 99 Parameters 2 Data record number 1 99 Parameters 3 Transfer recipe data record to C7 OP Parameter 1 Recipe number 1 99 Parameters 2 Data record number 1 99 Parameters 3 0 1 0 Data record is not overwritten 1 Data record is overwritten 70 Transfer recipe data record from C7 OP to C7 CPU Parameter 1 Recipe number 1 99 Parameters 2 Data record number 1 99 Parameters 3 71 Partial screen updating Parameter 1 0 Off 1 On Parameters 2 3 This job may not be initiated if no screen is selected 72 Cursor positioning in current process picture Parameter 1 Entry number 0 99 Parameter 2 Field number 0 8 Parameter 3 Cursor lock O off 1 on C7 623 C7 624 Control Systems C79000 G7076 C624 01 C 13 C7 OP Functionality Standard Screens Control Jobs System Messages Table C 2 Control Jobs with Parameters Continued Cursor positioning in current special screen Parameter 1 Field number Parameter 2 Cursor lock O off 1 on Parameter 3 Keyboard emulation Parameter 1 Internal function number System keyboard number Passwor
74. 000 Johannesburg 27 11 407 4111 BW 27 11 407 48 15 Fax 27 11 407 46 82 Tunesien TN 2062 Romana Le Bardo FAZE Sarl Electrotechnique Hr Fantar Immeuble Cham T 1216 8 51 90 91 Fax 2 16 1 50 19 32 TN 2035 Charguia Il Tunis SITELEC S A Hr Mouelhi 16 Rue de l Usine Zone industrielle A roport BP 115 1050 Tunis Cedex 216 1 70 00 99 Fax 2 16 1 71 70 10 Zimbabwe Electro Technologies Corp Pvt Ltd Siemens Zimbabwe Hr Ron Claassens Savoy House cnr Inez Terrace J Moyo Ave P BO Box 46 80 1563 a 2 18 be Fax 263 4 75 44 06 Amerika Argentinien 8000 Bahia Blanca Prov de Buenos Aires Siemens S A Hr S Duran on uez 159 T AR 55 61 41 Fax 134 91 55 61 71 1650 San Martin rov de Buenos Aires Siemens S A PEI AUT Hr Rudriguez Juis Hr Roland Herron Gral Roca 1865 Ruta 8 km 18 C C 54 1 7 38 71 92 7 15 a 54 1 7 38 71 85 Fax 54 1 7 38 71 71 5000 Cordoba Prov de Cordoba Siemens S A Hr S Garcia Campillo 70 T 54 51 73 9940 994 Fax 54 51 72 97 14 5539 Las Heras Prov de Mendoza Siemens S A Hr S Suarez Acceso Norte 379 T 54 R 30 00 22 0 37 Fax 54 61 30 00 22 0 37 2000 Rosario Prov de Santa Fe Siemens S A Hr R Stiza Ricchieri 750 54 1 41 37 03 21 0 Fax 54 1 41 37 07 87 Bolivien La Paz Sociedad Comercial e Industrial Hansa Ltda E amp A Hr Beckmann Calle Mercado esq Yana
75. 1 222 Event buffer full to remaining buffer space Delete buffer or configure smaller remaining buffer space 224 Event buffer full buffer partially deleted and forced printout initiated 225 Alarm buffer full to remaining buffer space Delete buffer or configure smaller remaining buffer space 227 Alarm buffer full buffer partially deleted and forced printout initiated 229 Keyboard connector faulty or loose hardware fault Return device for repair C7 623 C7 624 Control Systems C 18 C79000 G7076 C624 01 C7 OP Functionality Standard Screens Control Jobs System Messages 250 Changeover to required OP mode not possible via job This message may occur for example when trying to change over to loop through mode during communications via FAP 252 Recipe functions of the TD OP cannot be carried out simultaneously Two examples for situations where message 252 may be issued The selected function is already active e g in the background used by the controller The operator tries to transfer or delete a data record after selecting it 256 Insufficient memory space for executing the selected function Select the function again If the message is still output simplify the screen layout i e configure fewer screen elements functions Examples Shift the function causing the message to another screen Do not use any curves in connection with this function 259 A data record must be transferred to the cont
76. 1 universal input 2 set Bit 0 universal input 2 reset Bit 1 universal input 3 set Bit 0 universal input 3 reset Bit 1 universal input 4 set Bit 0 universal input 4 reset Bit 4 Bit 1 Counter counting Bit 0 Counterl stopped Bit5 Bit 1 Counter2 counting Bit 0 Counter2 stopped Bit 6 Bit 1 Counter3 counting Bit 0 Counter3 stopped Only relevant when universal inputs assigned as count input Output Range If the universal inputs are used as counters then the behaviour of the counters is controlled via the output range C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 21 Addressing Parameter Assignment and Function of the C7 Input Output Table 4 17 Addresses and Weighting of the Output Range of the Count Inputs Control of Counter 1 3 PQW274 Start comparison value counter 1 PAB276 0 Counter disable 1 Counterl enable 0 New start comparison value not valid 1 Set new start comparison value PQW277 Start comparison value counter 2 PAB279 0 Counter2 disable 1 Counter 2 enable 0 New start comparison value not valid 1 Set new start comparison value PQW280 Start comparison value counter 3 PAB282 0 Counter3 disable 1 Counter 3 enable 0 New start comparison value not valid 1 Set new start comparison value Initial value for down counter comparison value for up counter C7 623 C7 624 Control Systems 4 22 C79000 G7076 C624 01 Ad
77. 2 Delete buffer press Do not delete buffer press ESC By default an overflow warning is output to the display when the alarm message buffer reaches the configured residual buffer size Output of the overflow warning can be enabled and disabled on line by means of the standard screen Alarms Overflow If the alarm message buffer cannot accept any more messages those which have been acknowledged and have departed are the first to be deleted automatically until the configured residual buffer size is reached If the residual buffer is still not free further messages are deleted The deleting process occurs in the following sequence e Alarm message acknowledged not yet departed e Alarm message not acknowledged already departed e Alarm message not acknowledged not departed If overflow logging has been configured and an operational printer is connected to the C7 a compulsory print out of all the deleted messages is forced C7 623 C7 624 Control Systems C79000 G7076 C624 01 Sar ON Functions Automatic Deletion of the Event Buffer upon Buffer Overflow Automatic Deletion of the System Message Buffer upon Buffer Overflow By default an overflow warning is output to the display when the event message buffer reaches the configured residual buffer size Output of the overflow warning can be enabled and disabled on line by means of the standard screen Events gt Overflow If the event message buffer cannot
78. 2 CI 3 FC 4 Period time counter O No 1 Yes always with alarm DI selectable if use 2 0 edge O Rising edge 1 Falling edge only if use or 2 0 Direction O Forwards 1 Backwards if use 2 0 Gate time 0 0 1s l s 2 10s if use 3 0 Use 0 Disable normal DI 1 Alarm DI 0 Process alarm O No always when deactivated 1 Yes always with alarm DI selectable if use 2 O Rising edge 1 Falling edge only if not deactivated AII Measurement type Cycle end alarm Q No 1 Yes Measurement range 0 Deactivated 00 Cycle time 0 16ms 1 continuous ca 2 5ms 6 3ms 7 3 5ms 8 4ms 0 5ms increments 1 0 Deactivated 1 Voltage 2 Current only if Byte 4 lt gt 1 3 4 20mA 4 20mA if measurement type current 9 10V if measurement type voltage Measurement type Cycle end alarm 0 No 1 Yes Measurement range 0 Deactivated O Deactivated 1 Voltage 2 Current only if Byte 4 lt gt 1 3 4 20mA 4 20mA if measurement type current 9 10V if measurement type voltage Measurement type 0 No 1 Yes Cycle end alarm O0 Deactivated 1 Voltage 2 Current only if Byte 4 lt gt 1 C7 623 C7 624 Control Systems 4 40 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output Table 4 23 Table with Data Set Descriptions Parameter Block Continued What Can Be Assigned Meaning of the Respective Bit
79. 4 01 Alarm messages 7 3 compulsory print maximum length maximum number viewing total numbers Alarm messages area bit set 9 4 Alarm OB Alarm time parameter block 73 Alphanumeric values Analog function parameter Analog I O relationship 4 17 Analog input diagnostics measurement values parameter Analog output diagnostics output ranges parameters Analog ranges resolution sign conventions 4 11 Analog digital conversion 4 15 Area pointer screen number area 9 12 Arrow keys Assignment functions keys 8 3 Backward counting Basic functions Basic screen 6 11 Basic setting parameter block 3 4 Bit memory Bit number Bit set Blank insert 6 3 Block diagram frequency counters integrated function 4 33 Blocks Branch backwards 6 5 Index 1 Index Buffer battery 3 13 Buffer overflow C C7 parameter assignment 3 9 reference functions test functions C7 processor C7 CPU 1 2 block 3 6 characteristics cycle time parameter response time terms C7 CPU flash memory erase load C7 CPU modes menu C7 I O diagnostics C7 OP terms C7 OP model selection 2 3 C7 OP modes 6 13 C7 Operate what do you eae C7 Operating modes setting C7 CPU job data record C7 CPU gt C7 OP data record C7 OP gt C7 CPU C 13 C7 CPU modes select C7 OP functions C7 OP operation Calling password auto
80. 4 01 C 23 C7 OP Functionality Standard Screens Control Jobs System Messages Message Cause Action 600 Wrong parameter transferred by ProTool Lite Set required value by means of overflow warning standard screen or controller 601 Set required value by means of standard screen or controller Wrong parameter transferred by ProTool Lite message log 602 Re configure and repeat download of required value Wrong parameter transferred by ProTool Lite remaining buffer size 603 Recipe setpoint is only set up symbolically 604 Configure messages and repeat download Message not configured for a set message bit 605 Process connection only configured symbolically 606 Too many message variables are configured 607 Configured data type does not exist 608 Process connection only configured symbolically 609 Screen number does not exist 610 Control operator object for header or footer does not exist or is not allowed 611 Special operator object for buffer printout does not exist 613 Create DB or required length in controller Data block does not exist or is too short 614 The layout of the listing had not been configured when the print job was issued 615 Line to be output is larger than the reserved print Check configuration for log memory or the number of control sequences is too large 616 See Internal Errors 617 618 Wrong value entered Bit no is actual
81. 4 93 Russland 113043 Moskau Siemens AG Hr Engelhard Hr Michailow Ul Dubininskaja 98 T 007 8 8 5 36 63 60 Fax 0 07 0 95 2 36 62 00 Schweden 40020 Gotebor Siemens AB ASP Hr Ohlsson Ostergardsgatan 2 4 Box 1 41 53 7 76 86 53 T 0046 134 Fax 00 46 31 7 76 86 76 55111 SHOE Siemens AB ASP Hr Jonsson Klubbhusgatan 15 Box 10 07 T 0046 30 15 29 00 Fax 00 46 36 16 51 91 20123 Malmo Siemens AB ASP Hr Jamtgren Grimsbygatan 24 Box 326 T 004 20 17 46 14 Fax 00 46 40 17 46 17 85122 Sundsvall Siemens AB ASP Hr SPE Lagergatan 14 Box 76 T 0046 80 18 56 00 Fax 00 46 60 61 93 44 Hr PERLA i ae 19487 Upplands Vasby Stockholm Fax 00 39 3 66 76 28 20 5020 Salzbur Siemens AB ASP A1 Hr Persson Siemens AG AUT Hr Mariacher Jun Jonanneslandsvagen 12 14 Innsbrucker Bundesstra e 35 00 46 9 7 28 14 64 35129 Padova Postfach 3 Fax 00 46 8 7 28 18 00 a T e a sues 8 85 4 48 83 35 r Millevoi Viale dell Industria i T 0039 a9 829 19 11 Fax 00 43 6 62 4 48 83 09 Schweiz Fax 00 39 49 8 07 00 09 4214 Wien 1020 Renens Lausanne Siemens AG AUT 1 Hr Strasser ee a ye uuae 00142 Roma Siemensstrake 88 92 Siemens S p A AUT R10A Hr Vessio Via Laurentina 455 0039 e 5 00 95 1 Fax 00 39 6 5 00 95 20 10127 Torino Siemens S p A AUT R10A Hr Montoli Via Pio VII 127 B 0039 HR 6 17 3 1 Fax 00 39 11 61 61 35 Kroatien 41000 Zagreb Siemens d o o Hr Culja
82. 5 Northbrook Court T 1 B54 4 35 08 80 Fax 1 604 4 35 10 23 Kolumbien Baranquilla Siemens S A EA Hr C Perez Carrera 58 No 709 40 T 57 faa 56 1148 Fax 57 958 56 11 48 Bogota 6 Siemens S A Division Energia Hr M Jaramillo Carrera 65 No 11 83 aa 80150 57 2 94 22 66 Fax 57 2 94 24 98 Cali Siemens S A Barranquilla Hr Guido Hernandez Carrera 40 No 13 05 T 57 35 66 4 44 00 Fax 57 92 66 5 30 56 Cali Siemens S A Cali Hr C A Naranjo Carrera 48 A 15 Sur 92 T 57 A 2 66 30 66 Fax 57 94 2 68 25 57 Mexiko 02300 Mexico D F Siemens S A de C V El AUT Hr Gregorio Sanchez Delegacion Azcapotzalco Poniente 116 No 590 Colonia Industrial Vallejo Apartado Postal 15 064 02600 mexico 52 5 3 28 20 00 Fax 52 5 3 28 21 92 Fax 52 5 3 28 21 93 Peru Lima 13 ESIM Sa Dept AUT Hr Paz Soldan Avda N Arriola 385 4to Piso T 51 1143 71 46 61 Fax 51 14 71 09 93 Siemens Worldwide USA Alpharetta GA 30202 A Inc Regional Sales Manager Sautheast Hr Mich Gunyon Technology Drive 1 4 bd 7 40 36 ob Fax 1 4 04 7 40 36 96 Andover MA 01810 SIA Inc North East Region Hr Mark Fondl One Tech Drive Suite 310 T 41 2 oR 6 85 60 77 Fax 1 5 08 6 86 88 72 Houston TX 77040 SIA Inc SouthWest Region Hr Wade Bradford 13100 Northwest Freeway Suite 210 T 1 3 690033 Fax 1 713 4 60 44 50 Mason OH 45040 9011 SIA
83. 623 C7 624 Control Systems C79000 G7076 C624 01 Contents 7 Standard O I Functions 124 3ccerceneecdcenew capes doesenteewn tee wates aca 7 1 Nici 0 ea ee er ee eee ee 7 1 1 Event and Alarm Messages 0 cece cece e cence teen eens 7 1 2 Acknowledging and Suppressing Alarm Messages 005 7 1 3 SyStem Messages sacs s2ee4 caves Kees EEA ROK MES eR Ee DNS ARREA 7 1 4 Displaying Messages 0 cc ccc cece eee e eee 7 1 5 Viewing Message Buffers 0 ccc eee eens 7 1 6 Deleting Messages ccc cece eee eee tenet eenaee 7 1 7 Printing Messages cc cece cece eee eee ene nees 7 2 SCEN Siegert yee ena ee ee a oe ee See 7 3 Information Text 2 0 eee eee eee eee e enn 7 4 RODO soane rener Cae esas Fae ee aes Bae aie ene 7 4 1 Setting Up and Editing Data Records 0 cece eee 7 4 2 Copying Data Records annann anaana eect n eens 7 4 3 Transferring Data Records 0 ccc eee eens 7 4 4 Deleting Data Records 0 ccc tenet eens 7 5 STATUS VAR and MOD VAR with the C7 OP cence ees 7 35 8 Extended O I Functions 0ccccceeeeceeeeeeeeeeeeeeeeeeeeueneennees 8 1 Process Dependent Operator Guidance eee eee eeee 8 1 1 Self defined Screen Hierarchy 0 0 0 cece cee eee eens 8 4 8 2 Controlling the C7 OP from the C7 CPU 0 eee 8 7 8 3 CMCC CTS sok tare ato a EE a A AEE cures se he Gre ese ene
84. 7 623 C7 624 Control Systems 1 8 C79000 G7076 C624 01 Standard O I Functions Priorities The messages have various display priorities Table 7 2 Explanation of Priorities Display priority System messages always have the highest display priority and unacknowledged alarm messages always have the second highest priority Otherwise messages are displayed in different sequences depending on whether separate or mixed output of event and alarm messages has been configured Message priority You can set message priorities from 1 low to 4 high for alarm and event messages according to their importance If several messages of the same display priority exist simultaneously they are displayed according to their message priorities Those with the highest message priority are shown first and those with the lowest are shown last Displaying If several messages having identical display and message priorities exist First Last Message simultaneously the most recent is displayed in all cases for both event and alarm messages Depending on the value preset during configuration the oldest message or the most recent message is shown for alarm messages You can use the standard screen to modify the setting for viewing the oldest first or most recent last alarm message when there are several of them waiting To do this choose System DispMsg and set the corresponding parameter C7 623 C7 624 Control Systems C79000 G7076 C624 01 1 9 Sta
85. 7 623 C7 624 Control Systems C79000 G7076 C624 01 A 3 SFCs and SFBs in the C7 CPU Interrupt and The C7 CPU provides you with the following system functions for Error Fault responding to interrupts and errors faults Handling SFC No Name Description Execution Time MSK_FLT Masking sync faults 150 us D A DMSK_FLT Enabling sync faults 160 us READ_ERR Reading and erasing programming and access errors that have 160 us occurred or have been disabled DIS_IRT Disabling the handling of new interrupts 215 us soe ena Re Re triggering the scan time monitor Re triggering the scan time monitor scan time monitor 30 us REPL_VAL Copying a substitute value into accumulator 1 of the level 45 us causing the error Status Changes You can influence the CPU status with the following system functions SFC No Name Description Execution Time WAIT Implementing waiting times 200 us Address Allocation For allocating the free address of a module to the associated rack and slot you can use the following SFCs SFC No Name Description Execution Time SFC 5 GADR_LGC Determining the free address of channel x of the signal module in slot y LGC_GADR Converting a free address into the associated slot and rack B US number of a module src 50 RD_LGADR Calculating all the predefined free addresses of a module 190 us 190 us C7 623 C7 624 Control Systems A 4 C79000 G7076 C624 01 SFCs and SFBs in the C7 CPU Diagnostics You can
86. 7 624 Control Systems 4 44 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output Sequence of Statements in OB1 ORGANIZATION_BLOCK OB1 var_temp start_info array 0 19 of byte end_var BEGIN L 10 0 T MDO L 10 0 T MD4 L22 T MD8 CALL FC 127 lower limit MD0 upper limit MD4 setpoint MD8 channel PQW272 END_ORGANIZATION_BLOCK 4 6 2 Block for Scaling Analog Input Values Function of Block The FC126 block is used to convert the actual value entered as hexadecimal number in a peripheral input word into a corresponding floating point number analog value to be output to a peripheral output word For this purpose a simple calculation using the rule of three is programmed 1 First the actual value is related to the total range RANGE_HEX resulting from the difference UL LL The result is a percentage of the absolute actual value This is identical in the floating point number and in the hexadecimal representation 2 Then the total range RANGE_DEC resulting from the difference UL LL is calculated in floating point number representation depending on the measuring range being unipolar or bipolar 3 Now the percentage PERCENT calculated before is related to the total floating point number range The result is the absolute read in value 4 Finally the lower limit LL is added to this value as offset 5 The resulting floating point numb
87. 7 CPU The module error bit is not set if no fur ther error exists Module fault Collective error except no module parameters of all set diagnostics bits Internal error The error bit is set simulta neously with the error bits Watchdog EEPROM error or ADC error In addition the watchdog is activated with EEPROM error Watchdog The watchdog error is identi fied after an internal reset of the module The watchdog error can arise as the result of an EPROM or general mod ule error EEPROM error The error is identified after resetting the module during the reading of the calibration values for the compensation of the offset error of the ana log I O from the serial EEPROM The error bit is set when channel specific errors of the analog inputs or outputs occur Channel error A channel causes an error PLEASE CHECK C7 623 C7 624 Control Systems C79000 G7076 C624 01 External error Reaction of the BG Report to C7 CPU that the module is working with default parameters no chan nel specific module diagnos tics no process and diagnos tics alarms The error is set reset with the subordinate diagnostics bits If the diagnostics alarm has been assigned one will be generated With watchdog the module adopts a safe state 0 V is output the measured values become 7FFFy and the counter values become FFFF FFFFFF The module adopts a safe state O V is output the mea
88. 7 CPU already or the C7 OP attempts to establish a link Off line In Off line mode a logical link does not exist between the C7 OP and C7 CPU The C7 OP does not even attempt to establish a link Download In transfer mode data is transferred from the programming device PC to the C7 OP The transfer is achieved over the serial interface The C7 is not serviceable during the transfer Configuration Not If either the configuration or the basic screen for changing the C7 OP mode Loaded is not loaded you_can load the configuration afterwards You must then reset C7 OP see also section 2 1 Transfer in the The transfer of the configuration data from the PU PC is always carried out C7 OP in the C7 OP The transfer to the target device is described in the ProTool or ProTool Lite manual The OP is also situated there to stand in for the C7 623 and C7 624 as a target device C7 623 C7 624 Control Systems C79000 G7076 C624 01 6 13 Operating the C7 General Setting Operating The adjustment of the C7 OP operating modes is described below Modes Select the standard screen System Operation Operation mode On line F Press the key SHIFT and if necessary by pressing the keys AN o VZ several times set the required operating mode shown i als Confirm your choice by pressing ne I he required mode is now set Leave the standard screen by pressie GE System setting Display Event Mess
89. 76 C624 01 Control with the C7 CPU 3 5 8 Parameter Block Watchdog Alarms Overview A watchdog alarm is a periodic signal that the C7 CPU generates internally and leads to the automatic call up of a Watchdog alarm OB OB 35 Priority The priority of the OB 35 has a fixed setting of 12 You cannot change this value Parameter Block Table 3 13 lists the parameters of the parameter block Watchdog alarms Watchdog Alarms Table 3 13 Parameter Block Watchdog Alarms Explanation Value Range Default Setting Periodicity of the OB Call up interval of the OB 35 from 1 100 to 60000 C7 623 C7 624 Control Systems C79000 G7076 C624 01 3 17 Control with the C7 CPU 3 5 9 Parameter Block Cycle Behavior Parameter Block Table 3 14 list the parameters of the parameter block Cycle behavior Cycle Behavior Table 3 14 Parameter Block Cycle Behavior Parameter Explanation Value Default Set Range ting Cycle loading due to communication To limit the extent of slowing down program From 5 20 processing due to communications processes to 50 via the MPI in you can define the maximum percentage of cycle loading The communication between C7 CPU and PG or between communicating C7 CPUs can slow down due to the limitation of the cycle loading Operating system services such as the collection and provision of data for the commu nication will not be influenced Functions
90. Alarms gt View message buffer The messages contained in the alarm message buffer are shown on the display in the alarm message list together with their message number the date and time of occurrence and the message status arrived departed or acknowledged and their acknowledgement group Q Ack gr no 04 112 K on 12 04 95 09 34 00 Q Ack gr no 04 112 Q on 12 04 95 09 35 42 Figure 7 2 Example Display of alarm message buffer for C7 524 Scroll through the message text using the keys VZ and AN Table 7 4 Explanation of Example in Figure 7 2 Part of Message Explanation Q Ack gr no Details relating to next field acknowledgement group and alarm message number 04 112 The displayed alarm message belongs to acknowledgement group 04 The alarm message number is 112 Message has arrived Q Message has been acknowledged Message has departed Date and time of arrival acknowledgement departure of alarm message C7 623 C7 624 Control Systems C79000 G7076 C624 01 7 11 Standard O I Functions Displaying Alarm Message Text Viewing Total Numbers of Messages in event message buffer Displaying Event Message Buffer Displaying Event Message Text Viewing the Total Number of Messages in Event Message Buffer Viewing the System Message Buffer 7 12 Display message text for marked alarm message D Select the standard screen Alarms Number Here you receive an overview of all alarm messages in
91. Application Communication Display of Number of links Message frame length Transmission rate via the MPI Reserved OP links Reserved programming device links Free links Time system Display of following values C7 time C7 date Time system Correction factor Cycle of the synchronization frames Cycle times Display of the cycle times of the user program Monitoring time Length of the longest cycle Length of the shortest cycle Length of the last cycle Read diagnostics buffer Display the contents of the diagnostics buffer e Date and time of the day of occurrence of an error event e Designation of the error event e Information describing the event more exactly e g error OB call for access errors C7 CPU data Display of the following information for a C7 C7 type and version of the C7 CPU Size of the work and load memories in the C7 CPU Layout of the load memory Number and area for the inputs outputs times counters and flags Area for local data C7 system behavior C7 623 C7 624 Control Systems 3 34 C79000 G7076 C624 01 Control with the C7 CPU List of Test Table 3 19 lists the test functions of the C7 CPU Functions Table 3 19 Test Functions of the C7 Status variable Observe selected process variables inputs outputs memory bits times counters data at a specified position in the user program Monitor variable Assign a value cycle start cycle end transition RUN STOP to selected process variables inpu
92. C7 CPU the acknowledge bit C7 CPU C7 OP must be reset using the application program by the time a renewed alarm mes sage comes Assignment of Every alarm message has a message number To this message number the Acknowledgement same bit of the alarm message area and the bit multiplying of the Bit to Message acknowledgement area are assigned This is also valid for more than one Number Acknowledgement area if the length of the previous Acknowledgement area does not encompass the entire length of the alarm message area Figure 9 3 clarifies this situation Alarm message area 1 Acknowledgement area Alarm message no 1 Acknowledge bit for alarm rhessage no 1 Alarm message area 2 Acknowledgement area Alarm message no 49 Acknowledge bit for alarm mes age no 49 Figure 9 3 Assignment of Acknowledge Bit and Message Number C7 623 C7 624 Control Systems 9 6 C79000 G7076 C624 01 Acknowledgement Area C7 CPU gt C7 OP Acknowledgement Area C7 OP C7 CPU Size of the Acknowledgement AreasC7 CPU C7 OP and C7 OP C7 CPU Data Areas for Communication between the C7 OP and the C7 CPU One of the bits set in the C7 CPU area causes the acknowledgement of the corresponding alarm message at the C7 OP The Acknowledgement area C7 CPU C7 OP e Must be immediately connected to the relevant alarm message area e Must have exactly the same polling time and e Can have the same maximum length as the corr
93. Communication between the C7 OP and the C7 CPU 9 2 Overview of User Data Areas User Data Areas User data areas are used to exchange data between the C7 CPU and the C7 OP It is by means of these data areas that the C7 CPU and the C7 OP communicate The communication process consists of writing and reading information into and out of the data areas Upon evaluation of the data the C7 CPU and the C7 OP are triggered into the various actions The user data areas can reside in any required memory area in the C7 CPU Functionality The following user data areas are possible e Event messages e Alarm messages e Recipes e Control jobs e System keyboard image e Function keyboard image e LED image e Date and time e Screen number area e User version C7 623 C7 624 Control Systems C79000 G7076 C624 01 9 3 Data Areas for Communication between the C7 OP and the C7 CPU 9 3 Event and Alarm Messages Message Triggering Message Areas Message Bit and Message Number Assignment 9 4 Messages are triggered by setting a bit in one of the message areas in the C7 CPU The situation of the message area is defined by the configuration tool The corresponding area is also to be established in the C7 CPU As soon as the bit in the event or alarm message area of the C7 CPU is set and transferred to the C7 OP the message is recognized as having arrived Conversely after resetting the same bit in the C7 CPU the message is registere
94. For entering a symbolic value proceed as follows 1 Press 0 vet in the input field The activated Shift key is indi cated by the illuminated LED The selection list with the config ured symbolic inputs is activated 2 Using the cursor key select the required value 3 Confirm the selected value with The Shift key is automatically ENTER de activated C7 623 C7 624 Control Systems C79000 G7076 C624 01 Operating the C7 General 6 5 Setting C7 System Parameters and Language Overview After you have loaded a configuration you can change the C7 OP system settings via standard screens Language German English French Italian and Spanish Parameters Change C7 OP interface parameters Change printer parameters Set message logging Set message display first last message Set date and time Adjust contrast Setting the Messages screens and information text can be displayed in several Language languages Up to three of the languages listed below can be loaded simultaneously on the same C7 and presented to the operator for selection on line German English French Italian Spanish Displays can also be configured in Russian Cyrillic characters on the C7 624 C7 623 C7 624 Control Systems C79000 G7076 C624 01 6 19 Operating the C7 General To choose another language proceed as follows Go to the screen level if it has not yet The basic screen is displayed been set
95. Functionality Standard Screens Control Jobs System Messages 702 Internal error actual value error Ee w mess ame renar erer onora mgr tvs sm mwe O C7 623 C7 624 Control Systems C79000 G7076 C624 01 C 29 C7 OP Functionality Standard Screens Control Jobs System Messages C 4 1 Internal Errors Procedure Possible Causes C 30 The field numbers from 700 onwards and some errors defined in previous sections are used to describe internal errors of the C7 control systems or the ProTool configuring tools Please proceed step by step as described below if an internal error occurs Set the C7 CPU to STOP mode Switch off the C7 and then restart it Set the C7 OP to transfer mode during startup Transfer the configuration again and restart the C7 Should the error occur again contact the Siemens regional office in your vicinity Specify the error number including any variables coming up in the message 005 6xx 701 702 703 704 705 706 7XX Error no Var1 wie dt Error in configuration file Internal actual value errors Invalid job illegal job number or job parameter Flash full restrict your configuration Controller error Acknowledgement for unknown message Recipe request already active Internal errors C7 623 C7 624 Control Systems C79000 G7076 C624 01 SIMATIC C7 and S7 Reference Supplementary Literature 70 S7 300 Programmable Controller Hardware and Installation Manu
96. Measurement 0 00 cee eee een ees 4 5 Data Set Description for Parameter Block of C7 Analog I O and Universal InputS 0 ccc eee eee tenes 4 6 Examples for Programming the Analog I O and the Universal Inputs 4 6 1 Block for Scaling Analog Output Values 0 0 00 c cece eee 4 6 2 Block for Scaling Analog Input Values 0 00 cee eee 4 6 3 Example for Programming the Counters 0 cece cece eee DIAQNOSUCS acess cctcecceeseeeusesetadeocwn dicted wedediweatewesdeese caw 5 1 Diagnostics Messages ccc teen e eee e eae 5 2 Diagnostics Data of the C7 Analog I O and Universal Inputs 5 4 5 3 Constraints and Interactions of the Diagnostics Evaluation 5 8 Operating the C7 General 6 cc eee eee eee eens 6 1 KeyO0ald eree Enee seeeteeses oeeauegseoewseues erie era 6 2 6 2 Operating ME a re 6 3 Operating with the Standard Functions 0 0 0 cece eens 6 3 1 Setting C7 OP Operation Modes 0 c cece ee eens 6 4 Entenng Valuas aawcugaven ad cent thon eter e ahead eeeea eee eha we Ea 6 5 Setting C7 System Parameters and Language 0000ee 6 5 1 Changing Parameters On line 0 ccc cece eee ees 6 5 2 Contrast Adjustment annann anaana eee teen eens 6 6 Password Protection 0 0 eee eee 6 6 1 Password Level and Access Rights 6 6 2 Password Management 2 cece cece eee eee eet eee nees C7
97. O analog output W Watchdog alarm B 7 3 9 parameter block 3 17 Wire break Work memory 3 4 Index 9 C7 623 C7 624 Control Systems C79000 G7076 C624 01 Qy ox Siemens AG AUT E 146 Ostliche Rheinbriickenstr 50 D 76181 Karlsruhe Federal Republic of Germany From Your Name Your Title Company Name Street City Zip Code Country Phone Please check any industry that applies to you J Automotive O Pharmaceutical O Chemical O Plastic O Electrical Machinery J Pulp and Paper O Food O Textiles O Instrument and Control J Transportation J Nonelectrical Machinery I OET e aaa a a Petrochemical C7 623 C7 624 Control Systems C79000 G7076 C624 01 1 Remarks Form Your comments and recommendations will help us to improve the quality and usefulness of our publications Please take the first available opportunity to fill out this questionnaire and return it to Siemens Please give each of the following questions your own personal mark within the range from very good to 5 poor Do the contents meet your requirements Is the information you need easy to find Is the text easy to understand Does the level of technical detail meet your requirements Please rate the quality of the graphics tables PE EE ELL oe et OS ee Bee O a Additional comments C7 623 C7 624 Control Systems 2 C79000 G7076 C624 01
98. STEP 7 processing features Time system in the C7 CPU STEP 7 instruction set 0013H User memory areas Working memory Integrated load memory Size of backup memory C7 623 C7 624 Control Systems B 4 C79000 G7076 C624 01 System Status List in the C7 CPU Table B 1 SZL_ID 0014H Operating system areas Block types 0015H All records of the sublist 0115H One record depending on the index Loadable SDBs 0017H 0117H Rack information 0018H All records of the sublist 0118H One record depending on the index Interrupt error assignment via number of assigned OBs 0021H Records of all possible interrupts 0A21H Records of all assigned interrupts Interrupt status 02224 Record for the specified interrupt Priority class 0023H Records for all priority classes Only sublist header info C7 623 C7 624 Control Systems C79000 G7076 C624 01 Sublist Index ID of the Individual Records of the Sublist SDB Number 00014 50504 00004 Sublists of the System Status list of the C7 CPU Continued Record Contents Sublist Excerpt Process image of the inputs number in bytes Process image of the outputs number in bytes Number of flags Number of timers Number of counters Size of the I O address area Entire local data area of the C7 CPU in bytes OBs Number and size DBs Number and size SDBs Number and size FCs Number and size FBs Number and size Interrupt class of free cycle
99. Select the standard screen System Language Contrast ic Language ENGLISH Position the cursor to the selection field ENGLISH Select the required language via the symbolic inputs Only languages that have been loaded into the C7 are listed Confirm the input l The C7 starts again and shows all with R language dependent text in the ENTER new language C7 623 C7 624 Control Systems 6 20 C79000 G7076 C624 01 Operating the C7 General 6 5 1 Changing Parameters On line Overview You can change the parameters which were set by the configuration on line using the C7 OP Changing the You can change the parameters for the C7 OP interfaces via the standard Interface screens The procedure is outlined below Parameters The result is dependent on the individual C7 and the chosen configuration Depending on which C7 system you are using choose the screen level System setting system settings from the basic menu IF IF2A B Shown here is one of the standard screens with SYSTEM IF Using the arrow keys scroll through the parameter list on the display to the Baud rate required parameter Data bits Some of the parameters displayed cannot Stop bits be modified Parity Choose the value for the parameter by New parameter is set using a symbolic value to be configured in advance Accept the changed parameter If a password
100. Systems C79000 G7076 C624 01 Diagnostics In this Chapter In this section you will learn which diagnostics messages you can select and the layout of the diagnostics buffer The diagnostics of the C7 analog I O are described This chapter contains a statement of how you can correct the reported error for the most important diagnostics messages of C7 analog I O with universal inputs The term module refers here to a unit consisting of the analog I O and the universal inputs Section Diagnostics Message Page 5 1 Diagnostics Messages 5 2 5 2 Diagnostics Data of the C7 Analog I O and Uni 5 4 versal Inputs 33 Constraints and Interactions of the Diagnostics 5 8 Evaluation C7 623 C7 624 Control Systems C79000 G7076 C624 01 5 1 Diagnostics 5 1 Diagnostics Messages Overview Advantages Diagnostics Events C7 CPU I O Diagnostics Assign I O Diagnostics Parameters 5 2 The C7 CPU possesses a diagnostics buffer in which detailed information is provided for all diagnostics events are recorded in the sequence of their occurrence The contents of the diagnostics buffer is preserved even after a complete erasure of the C7 CPU The diagnostics entries in the diagnostics buffer can be read and interpreted by the applications program Errors in the system can be evaluated after a long time delay using the diagnostics buffer in order be able to identify the cause of e g a STOP or to t
101. T LED goes out Contrast You can also adjust the contrast of the LCD display using the standard Adjustment via screen To do this proceed as follows Standard Screen 1 Select the standard screen Cursor is positioned on the input System Language field for contrast 2 Select the required contrast value using the symbolic inputs 1 for the lowest value 16 for the highest value 3 Leave the standard screen with 7 You change back to the previous ESC screen level C7 623 C7 624 Control Systems C79000 G7076 C624 01 6 25 Operating the C7 General 6 6 Password Protection Overview To prevent unauthorized operation of the C7 it is possible to protect access to certain functions and inputs by means of passwords and password levels When an operator is issued a password s he is simultaneously granted permission to execute functions at a specific password level A password and password level are defined during the configuration If password protection is implemented you must first log into the system LOGIN and then log out LOGOUT when finished Logging into the You can log into the C7 in various ways C7 e Via the standard screen Password gt Login e By calling a function for which the current password level is too low In this case the request for a password automatically appears on the display Logging in Using To log in using the standard screen proceed as follows the Standard Screen Sele
102. TR L RANGE_HEX DTR R T PERCENT Computing floating point number L upper limit calculate floating point number range L lower limit _R L PERCENT R L lower limit R T actual value END_FUNCTION Calling the FC126 An example for calling the FC126 is given in the following in OB1 Before calling the function block the range limits must be reassigned to memory double words This is necessary to enable using variable values Normally upper limit and lower limit are fixed values This can be achieved by setting the upper limit and lower limit parameters in the declaration section of the FC126 to gt REAL To enhance flexibility in a test environment this variant has been omitted C7 623 C7 624 Control Systems 4 48 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output Sequence of Statements in OB1 ORGANIZATION_BLOCK OB1 var_temp start_info array 0 19 of byte end_var BEGIN L10 0 T MD4 L 10 0 T MDO CALL FC 126 lower limit MD0 upper limit MD4 channel PIW272 actual value MD8 amp END_ORGANIZATION_BLOCK 4 6 3 Example for Programming the Counters Function of Block The program is intended to implement a simple function which shows the principle of addressing the counter inputs by the STEP7 program The counters are implemented to count up until the comparison value is reached They are reset when t
103. a is the Bit keyboard group bit It serves as a control bit This bit is set to 1 for every transfer of the keyboard image After evaluation of the data area by the application program the keyboard group bit should be reset You can determine whether a block is newly transferred by regularly reading the group bits using the application program C7 623 C7 624 Control Systems 9 10 C79000 G7076 C624 01 Data Areas for Communication between the C7 OP and the C7 CPU 9 4 3 LED Image Data Areas The LED image can be categorized into separate data areas e Maximum number of data areas 4 e g 4 different data areas in varions CPUs e Total length of all data areas words LED Assignment The assignment of the individual LEDs to the data area bits is defined during the configuration of the function keys The bit number within the image area is declared for every LED The bit number n denotes the first of two consequential bits which can control four different LED states in total 0 0 Off Flashing at about 2 Hz Flashing at about 0 5 Hz Continually on C7 623 C7 624 Control Systems C79000 G7076 C624 01 9 11 Data Areas for Communication between the C7 OP and the C7 CPU 9 5 Screen Number Area Application Prerequisite Requirement Layout 9 12 The C7 OP stores information concerning the C7 OP s called up screen in the screen area number It is thus possible to transfer information about the current di
104. a screen entry is the two lines in Figure 7 5 pn page 7 17 Furnace 1 temperature 80 C Furnace 2 temperature 78 C A screen entry consists of the following components e Static text The static text contains explanations for the user You can also receive information about the soft key layout Fields for the output of e Date e Time e C7 CPU setpoints Fields for the input of C7 CPU setpoints which are immediately transferred to the C7 CPU after being entered Fields for combined input output of C7 CPU setpoints and actual values e Soft keys Different function calls for the different screens are assigned to the soft keys The configuration defines the intervals at which C7 CPU values are updated this means read again from the C7 CPU and shown on the display With large screens containing more than 159 actual values or setpoint values Partial screen updating is automatically enabled To enhance performance only the values are updated which are currently present on the display This may mean that an older value is briefly displayed when scrolling through screen entries Updating of the visible actual values is however faster as a result 7 21 Standard O I Functions Input and Output Fields 1 22 Input and output fields have the following properties Input fields define the setpoints in numeric or symbolic form The blinking cursor can be seen in input fields Output fields display actu
105. ace STEP 7 _ ProTool Lite Figure 1 1 Components of the C7 The individual functional units integrated in the SIMATIC C7 correspond to the modules and devices that can be used in modular configurations comprising S7 300 CPUs COROS OPs etc The C7 s I O expansion capability via its IM interface permits the connection of SIMATIC S7 300 modules distributed over three racks with a maximum of 24 S7 300 modules The general functionality of the C7 also corresponds to a configuration with standard modules of the PLC and OP ranges The individual components operate independently of one another and each processor has a separate memory C7 623 C7 624 Control Systems 1 6 C79000 G7076 C624 01 Introduction STEP 7 is used for programming the C7 CPU whereas the C7 OP is programmed with ProTool or ProTool Lite Both tools run under Windows either on programming devices or PCs C7 623 C7 624 Control Systems C79000 G7076 C624 01 1 7 C7 623 C7 624 Control Systems C79000 G7076 C624 01 Commissioning Start Up In this Chapter In this chapter you will learn How the C7 behaves on start up What you must do if
106. ady stored on the C7 OP can be taken from a data record selection list C7 CPU stands for data record 0 in the selection list C7 623 C7 624 Control Systems C79000 G7076 C624 01 Using the transfer screen C7 623 C7 624 Control Systems C79000 G7076 C624 01 Standard O I Functions Proceed as follows to transfer a data record bd Select the standard screen Records Transfer Select the recipe in the recipe directory Position the cursor on the Source field in the transfer screen Depending on the direction of transfer desired enter the appropriate source number see examples and confirm Position the cursor on the Destination field Depending on the direction of transfer desired enter the appropriate des tination number see examples and confirm Position the cursor on the Accept field and confirm transfer During the data transfer an asterisk is indicated in the acceptance field Exit the standard screen with ESCAPE 7 33 Standard O I Functions 7 4 4 Deleting Data Records How to proceed 7 34 Data records of a recipe can be deleted from the data record directory These data records are then no longer available for the recipe When a data record which is active in the C7 CPU is deleted from the direc tory of the C7 OP this data record still continues to be active in the C7 CPU Proceed as follows to delete data records L 2 3 Select Records Edit i
107. age C7 623 C7 624 Control Systems 6 14 C79000 G7076 C624 01 Operating the C7 General 6 4 Entering Values Overview You enter the values to the C7 by using input fields There are various types of values which you enter in various ways e Numeric values e Alphanumeric values e Symbolic values Input of General In general follow the procedure outlined below Values As described on page 6 11 branch ini The required screen is displayed tially to the screen you require and then to the corresponding screen entry Using the cursor keys select the input Cursor is positioned on the input field you require within the screen entry field Enter the required value Depending on The input field is flashing the field configuration you can input the values listed under Overview Confirm your input with E gt The value is accepted and the ENTER input display stops flashing Cancel incorrect input with 4 The original value is automati ESC cally re entered into the field Position the cursor with the cursor keys to the next field and follow the same pro cedure You can also use the cursor keys to move the cursor to the left or right of the pre vious input field to insert a different value into it Close the screen by pressing 2 The display is reset and changed ESC back to the previous screen C7 623 C7 624 Control Systems C79000 G7076 C624 01 6 15 Operating the C7 General
108. agnostics buffer Undetected Errors Errors that occur in the process that is outside the automation system are not detected by the system diagnostics Such errors are for example motor failure These errors fall within the area of the process error diagnostics C7 623 C7 624 Control Systems 3 12 C79000 G7076 C624 01 3 5 4 Parameter Block Retentive Areas Definition Retentivity Retentivity Without Buffer Battery Retentivity of Data Blocks Control with the C7 CPU A memory area is retentive when its contents are retained even after a power failure and a transition from RUN to STOP The non retentive areas for the flags timers and counters is reset after a power failure and after a transition STOP RUN The following can be retentive e Flags e S7 timers e S7 counters e Data areas Areas that you declare to be retentive areas in the parameter block will be preserved without a buffer battery after a power failure and after a transition from STOP to RUN The boundary defined for the retentive and non retentive areas is not influenced by the use of a buffer battery in the C7 You must take note of the following for the retentivity of data areas in data blocks e C7 with buffer battery all data blocks are retentive This means that a setting for the retentivity of DBs is not effective so long as the buffer battery voltage is sufficient e C7 without buffer battery the user program is located in the fl
109. aie Mok oe 9 Data Areas for Communication between the C7 OP and the C7 CPU 9 1 Configured Communications Parameters 0 000 cee cece eee es 9 2 Overview of User Data Areas 0 0000 en 9 3 Event and Alarm Messages 0 ceceeee cence eee aarre 9 4 Keyboard and LED Image 9 8 9 4 1 System Keyboard Image 9 9 9 4 2 Function Keyboard Image 10 9 4 3 LE D ITAGO eenean eraa EERE E EE EEE 9 5 Screen Number Area si caine 3 4 wince dag vest alow cniw Bp nannan 9 6 Inteace Area serere seater areas ee eee bre os ee hen e pare aces peered 9 6 1 Control and Checkback BitS 0 0 ccc eee eee ees 9 6 2 Data Areas in the Interface Area ccc eens 9 6 3 Example for activating a control job 0 0 ccc eee 9 7 PO PO Sg rea whew eg rk S nites Aas ome e oA WO oh aud aah kao Re 9 7 1 Transferring Data Records 0 0 0 ccc ets 9 7 2 Addressing Recipes and Data Records and the Requisite Pala Pleas err seeds oeces or auu ee eeuereen beeen re Gen A E A 9 7 3 Synchronization during Transfer Normal Case 005 9 7 4 Synchronization during Transfer Special Cases 05 9 8 Notes on Optimization 0 0 eee nents C7 623 C7 624 Control Systems C79000 G7076 C624 01 V Contents A SFCs and SFBs in the C7 CPU B System Status List in the C7 CPU C C7 OP Functionality Standard Screens Control Jobs System Messages SIMATIC C7 a
110. al T1 S7 300 M7 300 Programmable Controllers Module Specifications Reference Manual 172 S7 300 Programmable Controller CPU 312 CPU 314 Instruction List 230 Standard Software for S7 Converting STEP 5 Programs Manual 232 Statement List STL for S7 300 and S7 400 Programming Manual 233 Ladder Logic LAD for S7 300 and S7 400 Programming Manual 235 System Software for S7 300 and S7 400 System and Standard Functions Reference Manual 280 System Software for M7 300 and M7400 Program Design Programming Manual C7 623 C7 624 Control Systems C79000 G7076 C624 01 D 1 C7 623 C7 624 Control Systems C79000 G7076 C624 01 In this Appendix Siemens Worldwide In this appendix you will find a list of e All cities in the Federal Republic of Germany with Siemens Sales Offices and e All European and non European Siemens Companies and Representatives SIMATIC Contact in the Federal Republic of Germany ZN ZN ZN ZN ZN ZN ZN ZN ZN Zweigniederlassung 52066 Aachen AUT P 13 Hr Georgens Kurbrunnenstr 22 T 02 41 451 2 52 Fax 02 41 4 51 3 98 86159 Augsburg AUT 11 Hr Hirth Werner von Siemens Str 6 08 21 25 95 4 50 Fax 08 21 25 95 4 08 95448 Bayreuth AUT P S 11 Fr Hos Weiherstr 25 T 09 21 2 81 3 41 Fax 09 21 2 81 4 44 10587 Berlin AUT P 1 Hr Liebner Salzufer 6 8 T 0 30 39 93 23 97 Fax 0 30 39 93 23 02 33605 Bielefeld AUT P
111. al values of the C7 CPU in numerical or symbolic form Up to 256 individual texts can be configured for symbolic input and output fields These can be selected via the C7 s selection field The selected value is taken Configured number formats or limit values with respect to the number of decimal places are valid for numerical input values C7 623 C7 624 Control Systems C79000 G7076 C624 01 Standard O I Functions 7 3 information Text Overview Select Information Text Display Information Text Information text contains information about the current display contents It is created during configuration with ProTool Lite and provides additional information in the language set on the C7 Information text can be configured for e Event messages and alarm messages e Screens e Screen entries e Input fields and combined I O fields Information text can be used to convey information to the user for example on the current assignment of the soft keys Information text relating to an alarm message may contain such things as additional hints about the possible cause of the alarm and how to remedy it o i Configured information text is displayed by pressing the key The availability of information text is recognized by an illuminated LED Depending on the cursor position that is input field screen etc pressing the HELP key will react in various ways These are described in Table 7 8 Table 7 8 Explanation Wh
112. all counters are active L PIB287 scanning status bits T status A L20 4 C1 signalled active A L20 5 C2 signalled active A L20 6 C3 signalled active JC run BEU Determining counter image optional run NOP 0 L PIW280 Cl T MW20 L PIW282 U2 TMW22 L PIW284 1 C3 T MW24 END_ORGANIZATION_BLOCK OB35 Statement OB35 contains the following statements i ORGANIZATION_BLOCK OB35 var_temp start_info array 0 19 of byte end_var BEGIN AN Q1 2 assigned to Cl Q1 2 AN Q1 3 assigned to C2 Q1 3 AN Q1 4 assigned to C3 Q1 4 L QWO transfer QWO immediately T PQWO END_ORGANIZATION_BLOCK OB40 Statement OB40 contains the following statements Sequence C7 623 C7 624 Control Systems 4 52 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output ORGANIZATION_BLOCK OB40 var_temp start_info array 0 19 of byte end_var BEGIN Determining which input has triggered alarm AN L8 0 alarm from C1 JC c2 L MB40 counts number of alarms from C1 up to 255 INC 1 T MB40 c2 NOP 0 AN L8 1 alarm from C2 JC c3 L MB41 counts number of alarms from C2 up to 255 INC 1 T MB41 c3 NOP 0 AN L8 2 alarm from C3 BEB L MB42 counts number of alarms from C3 up to 255 INC 1 T MB42 END_ORGANIZATION_BLOCK C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 53 C7 623 C7 624 Control
113. ange the operating level Zz T e From screen level to message level by pressing the key e From message level to screen level by pressing the g key ENTER You cannot branch backward from the message level by pressing ESCAPE This key is designed to terminate the display of a system message at this level C7 623 C7 624 Control Systems C79000 G7076 C624 01 Forced Change to Message Level Operating the C7 General You are automatically exited from the screen level whenever a system message or an alarm message is waiting to be displayed The C7 OP then changes to message level to display the message You cannot exit from the message level while a system message or unacknowledged alarm message is being displayed The display of an unacknowledged alarm message is indicated on the C7 OP by the Alarm message flashing and Illuminated ACK LED S ACK Use the ACK key for acknowledging an alarm message Press the ESCAPE key to fade out a system message Acknowledging of the alarm message or fading out the system message takes the C7 OP back to the point where it changed to the message level C7 623 C7 624 Control Systems C79000 G7076 C624 01 6 Operating the C7 General 6 3 Operating with the Standard Functions Overview Standard Screens 6 8 A standard configuration which contains standard screens is supplied with the configuration software ProTool All functions required for the ope
114. ansfer of the date and time from the C7 OP to the C7 CPU can be ini tiated by means of C7 CPU job 41 These bits are set by the C7 OP if a new date or a new time is transferred The bits must be reset in the S7 program after the date or time has been evaluated Bit 7 Scheduler bits 1 New Scheduler bits are possible only for the C7 624 If the C7 624 has set a new scheduler bit in the interface area it also sets the corresponding bit in the control and acknowledge bits You therefore need only to poll this bit to detect modification of the scheduler bits Following evaluation the bit has to be reset in the C7 CPU Description of The following diagram shows the layout of byte n 1 Afterwards follows the byte n 1 description of the individual bits Address net 7 6 5 4 3 2 1 0 C7 OP Ready bit C7 OP Operation mode C7 OP Restart C7 623 C7 624 Control Systems 9 14 C79000 G7076 C624 01 Data Areas for Communication between the C7 OP and the C7 CPU Bit 0 C7 OP restart 1 C7 OP has been started Bit 0 is reset upon completion of the restart You can reset the bit in the C7 CPU program and thus recognize when the C7 OP is being restarted Bit 1 C7 OP operation mode 1 C7 OP in off line mode 0 C7 OP in normal mode Bit 1 is set if the user switches the C7 OP to off line The bit has a value 0 in an on line condition Bit 2 C7 OP ready bit The C7 OP inverts the ready bit within the interval of 1 second In the C7 CPU
115. arameter block 4 10 Output ranges analo a Outputs Index 6 Overflow alarm message event message Overflow warning Overview 2 10 P Parameter analog function analog input analog output C7 CPU Parameter assignment C7 CPU Parameter asssignment universal inputs 4 24 Parameter block cycle behavior diagnostics A 8 14 10 4 8 process alarm real time clock retentive areas start up characteristics 3 11 substitute value system diagnostics time of day alarms watchdog alarm Parameter characteristics analog inputs 4 9 analog output 4 10 Parameter tools universal inputs Parameterizable events Parameterization error 4 8 4 10 Partial screen updating Password index Password level changing Password list 6 28 displaying C7 623 C7 624 Control Systems C79000 G7076 C624 01 Password management 6 28 Password protection 6 26 Period G34 Period time counter parameter parametering Period time counts 4 36 Period time measurement 4 36 Period times clocks Permanent diagnostics error PG Functions STATUS VAR STEUERN VAR 7 35 PG Functions MODIFY VAR STATUS VAR C 5 PLC job C 13 print production report print recipe select directory select recipe set contrast POWER ON Power supply error Print alarm messages event messages ag re eal recipe start 7 Printer changing parameters
116. ash memory The data blocks for which a retentive area has been set must be programmed in the flash memory Data blocks or data areas that you generate with the SFC 22 CREATE_DB are not retentive The retentive data areas are preserved after a power failure The contents programmed in the flash memory are held in the non retentive data areas C7 623 C7 624 Control Systems C79000 G7076 C624 01 3 13 Control with the C7 CPU Parameter Block Table 3 9 lists the parameters of the parameter block Retentive areas The Retentive Areas retentive area for all areas flags timers counters and data bytes may not be larger than for the sum of all the parameters listed in Table 3 9 Table 3 9 Parameter Block Retentive Areas Parameter Explanation Value Range Default C7 Setting Memory bytes The parameter value entry is the number of retentive 0 to 256 16 memory bytes from memory byte 0 S7 timers The parameter value entry is the number of retentive S7 0 to 128 timers from timer O space req 2 bytes timer S7 counters The parameter value entry is the number of retentive S7 0 to 64 counters from counter 0 space req 2 bytes timer Data areas Max 8 data areas may be retentive with a maximum of Yes No e Data block number 4996 bytes The start address of the data area the num e From 1 e ber of data bytes may not exceed 8191 to 127 e Number of bytes e 6From 0 e 0 to 4096 e Byte address
117. ata Temporary Default Setting Diagnosis Diagnostic Events Diagnostic Functions Diagnostic Interrupt Display Display Duration Glossary 4 It is used for triggering a function in the C7 Counters are component parts of the C7 CPU The contents of the counter cells can be changed by means of STEP 7 instructions for example upward downward counting Data blocks DB are data areas in the user program which contain user data Global data blocks can be accessed by all code blocks and instance data blocks are assigned to a specific FB call Static data are data which are used only within a function block These data are stored in an instance data block belonging to the function block The data stored in the instance data block are retained until the next function block call Temporary data are local data of a block that are stored in the L stack during execution of the block and that are not retained after the execution The default setting comprises generally applicable basic settings which are used whenever no other values are specified gt Diagnostic Functions System Diagnosis Modules with diagnostics capability signal any system fault to the gt C7 CPU via diagnostic interrupts Diagnostic functions comprise the complete scope of system diagnostics and the detection evaluation and signalling of faults within the C7 Modules with diagnostics capability signal system errors to the g
118. ate and time proceed as follows From the basic screen choose System and the screen level system settings Select the standard screen Date Time Date Fr 01 01 95 Time 01 30 40 C7 623 C7 624 Control Systems C79000 G7076 C624 01 6 23 Operating the C7 General Set the weekday with the keys 3 Confirm input with E gt ENTER 4 With the keys o or Cursor jumps to the date field or SHIFT bic position the cursor to the right or to the left in the date field Enter the date with a numerical input First press the Shift key Change between date and time with Cursor is positioned on the time the cursor keys field 5 fe Carry out the procedure described in Step 4 5 Confirm with eS New parameter is set ENTER ha Leave the standard screen with Previous screen setting appears ESC C7 623 C7 624 Control Systems 6 24 C79000 G7076 C624 01 Operating the C7 General 6 5 2 Contrast Adjustment Overview You can adjust the contrast of the C7 s LCD The display contrast can be adjusted either by e Direct adjustment or via a e Standard screen Direct Contrast The display contrast of the LCD can be adjusted using the system keyboard Adjustment ka Press the Koy Sr The SHIFT LED lights up Adjust the cons The contrast changes for as long as the key is pressed to the required value p pressing the key either a single key press or continually Press the key The SHIF
119. ating hours counters 65 us In the C7 CPU you can set 1 operating hours counter seo le CTRL_RTM Starting and stopping the operating hours counter SSus SSus me READ_RTM Reading the operating hours counter SFC 64 TIME_TICK Reading out the system time 45 us You can read out the system time with an exactness in the ms range Block Functions The following table contains system functions for copying and setting array default variables SFC 20 BLKMOV Copying variable of random type 90 us 2 us byte SFC 21 FILL Setting array default variables 90 us 3 2 us byte Creating a You create a data block using SFC 22 CREAT_DB Data Block SFC 22 CREAT_DB Generate a data block of specified length in a specified 110 us 3 5 us area per DB in the specified area C7 623 C7 624 Control Systems A 2 C79000 G7076 C624 01 SFCs and SFBs in the C7 CPU Time of Day You can use the time of day interrupts for program processing controlled by Interrupt the C7 CPU internal real time clock Functions SET_TINT Setting the times for a time of day interrupt 190 us CAN_TINT Canceling the times for a time of day interrupt ACT_TINT Activating a time of day interrupt QRY_TINT Querying the status of a time of day interrupt Delay Interrupts Delay interrupts start the operating system at the end of a specified time SRT_DINT Start a delay interrupt CAN_DINT Cancel a delay interrupt QRY_DINT Query started delay interrupts C
120. bal data Cycle time correction factor operating hours counter date time of day Set baud rate via the MPI Features parameters of the module plugged in Rack 0 Rack 1 Rack 2 Rack 3 Event information The information in each case depends on the event Module dependent diagnostics information C7 623 C7 624 Control Systems C79000 G7076 C624 01 C7 OP Functionality Standard Screens C Control Jobs System Messages In this Appendix In this appendix you will obtain information concerning C7 OP Functionality Brief Description of Standard Screens Control Jobs and Their Parameters System Messages 15 C7 623 C7 624 Control Systems C79000 G7076 C624 01 C 1 C7 OP Functionality Standard Screens Control Jobs System Messages C 1 C7 OP Functionality Table with List of The table below provides an overview of the functions of C7 623 and C7 624 Functions with their different versions Table C 1 Functions of C7 623 and C7 624 Display Design VE Lines x characters per line character height mm 4x20 5 4x20 8 or 8x40 4 5 Contrast control Event Messages Maximum number Maximum length characters Display Print View event message text Maximum number of entries in the event buffer View event buffer Print event buffer Delete event buffer Alarm Messages Maximum number Maximum length characters Display Print View alarm message text Maximum number of entries in alarm
121. ce Data Functions of the C7 CPU Overview The C7 CPU offers the possibility to scan the status of the C7 CPU and its associated signal modules by means of a series of test and reference data functions By this method you can obtain information on the following e The current layout of the C7 e The current configuration e The current states e The current sequences in the C7 CPU and the associated signal modules You can also change process variables independently from the user program Description of the The test and reference data functions can only be executed using the STEP 7 Test and Reference software The description of the test and reference data functions can be Data Functions found in the appropriate chapters of the manual 230 List of Test and Table 3 18 contains the reference data functions of the C7 CPU Reference Data Functions Table 3 18 Reference data functions of the C7 CPU Reference Data Function Application User memory Display of the current loading of the e Constants memory EEPROM integrated into the C7 Load memory of the C7 CPU RAM e Work memory of the C7 CPU RAM Blocks Display of all available blocks and the possible priority levels SFCs SFBs OBs All blocks Stacks Read out the contents of B stack I stack L stack C7 623 C7 624 Control Systems C79000 G7076 C624 01 3 33 Control with the C7 CPU Table 3 18 Reference data functions of the C7 CPU Continued Reference Data Function
122. cial Features with Function Keys Special Features with softkeys Extended O I Functions You can assign the following functions to function keys and softkeys e Branch to screen level e Select screen e Start print job e Display directory contents e Modify parameters on line A function key or a softkey can be assigned a password level This means that certain functions for example Modify parameters on line are only accessible to authorized persons An LED integrated in a function key can prompt the operator if he must use this key for initiating a function in a given situation The LED is activated by the C7 CPU LED K1 Figure 8 1 Function Key with LED A bit can be configured in a variable for every softkey This ensures that a bit is set in the C7 CPU when a softkey is pressed In this instance the C7 OP always transfers the whole variable to the C7 CPU instead of the individual bits and overwrites the information it contains The bit is reset when the key is released or upon a change of display which modifies softkey assignment C7 623 C7 624 Control Systems C79000 G7076 C624 01 8 3 Extended O I Functions 8 1 1 Self defined Screen Hierarchy Overview Example of Screen Hierarchy Design 8 4 The screen hierarchy can be adapted to system specific requirements and be modified either in part or in whole Screens can be removed or added Screens can be linked together in random or
123. cial screen with ESC Leave the standard screen with 2 You change back to the previous ESC screen level When the message logging function is active ON all alarm and event messages which occur on line are printed out This is also so for alarm messages upon acknowledgement You can switch off this logging process by setting the parameter OUT The procedure for setting this parameter is similar to changing printer parameters C7 623 C7 624 Control Systems C79000 G7076 C624 01 Operating the C7 General Setting First Last To define whether the oldest or the most recent alarm messages see section Message Display 7 2 for first last message is displayed when several are waiting to be cae proceed as follows From the basic screen choose System and the screen level system settings Select the standard screen DispMsg check Message type Fir8t Select the corresponding parameter Password is requested first or last with O SHIFT and or EP operation as described in Step 3 and confirm ee sel Setting the Date You can adjust the current date and time on the C7 OP to compensate for and Time summer or winter time for example Any change you make will affect all messages and screens for which a date or time variable has been defined The display format for date and time is defined in your configuration and cannot be changed by means of the menu system on the C7 OP To change the d
124. cocha C P 10 800 T 591 iB 35 44 45 Fax 591 2 37 03 97 Brasilien 05110 900 Sao Paulo SP Pinituba MAXITEC S A AUT PA Hr F Rocco Avenida Mutinga 3650 T 55 W 8 36 29 99 Fax 55 11 8 36 29 50 Chile Santiago de Chile INGELSAC Div Energia Hr Browne Avda Holanda 64 Cas 242 V T 56 3 2 31 00 00 Fax 56 2 2 32 66 88 Costa Rica San Jose 1000 Siemens S A San Jose Division Energia y Automatizacion VAT Hr Ferraro La Uruca Apartado 100 22 5 06 87 50 50 Fax 5 06 21 50 50 Ecuador Quito Siemens S A Dept DEA Hr J Guerra Calle Manuel Zambrano y Panamericana Norte km 2 1 2 Casilla de Correos 17 01 3580 5 93 3 47 40 60 M 2 40 77 38 El Salvador San Salvador Siemens S A E A Hr M Dubon 43 Calle Siemens parque Industrial Sta Elena Apartado 1525 5 03 78 33 33 Fax 5 03 78 33 34 C7 623 C7 624 Control Systems C79000 G7076 C624 01 Guatemala Ciudad de Guatemala Siemens S A EA AUT Hr Godoy 2a Calle 6 76 Zona 10 pas 1959 T o 34 3670 Fax 5 02 2 34 36 70 Kanada Mississauga ON L5N 7AG Siemens Electric Ltd Dept SL 20 Hr Fred Leon 2185 Derry Road West T 1 ees 7 92 81 95 82 Fax 1 905 58 19 58 12 Point Claire QUE H9R 4R6 Siemens Electric Ltd Hr D Goulet 7300 Trans Canada Highway B 1 514 426609 Fax 1 514 4 26 61 44 Burnaby B C V5J 5J1 Siemens Electic Ltd Hr A Mazurek Marine Way Business Park 887
125. control value 619 Re load ProTool Lite repeat download of configuration ProTool Lite error data structure for presetting of setpoint 620 Wrong parameter transferred by ProTool Lite Repeat download of configuration function keyboard 621 Wrong parameter transferred by ProTool Lite Set required value by means of message type standard screen or controller 622 Configured recipe does not fit in the C7 CPU recipe mailbox more than 256 data words 623 See Internal Errors 624 No recipe entries available 625 Invalid recipe number in control job or function area C7 623 C7 624 Control Systems 24 C79000 G7076 C624 01 O C7 OP Functionality Standard Screens Control Jobs System Messages 628 The recipe does not fit into the boxes LU 629 LED image area too small Enlarge LED image area according to configured bit offsets 630 Keyboard image area too small Enlarge image area according to configured bit offsets Message configuration x is incomplete or incorrect Add to configuration and repeat download x variable 1 2 The triggered alarm is not configured 3 The process connection is only set up symboli cally The actual value field is only set up symbolically The triggered event message is not configured The symbolic actual value field is only set up symbolically 21 24 Field texts do not exist for the symbolic actual value 25 Field type not permitted 8 20 Internal error Message with
126. copied via the standard screen Records Edit 2 Instead of changing a value in the data record exit the displayed data re cord again immediately by pressing ENTER When the standard screen is exited you will be asked whether you want to save the data record regardless of whether values have been changed or not 3 Position cursor in the field for the data record number enter the number and confirm 4 Position cursor in the field for the data record name enter the name and confirm The next time you call the data record directory you will find the new data record in the list C7 623 C7 624 Control Systems C79000 G7076 C624 01 Standard O I Functions 7 4 3 Transferring Data Records Overview A transfer screen offering the following functions is available for transferring data records e C7 OP C7 CPU Before a changed or newly set up data record in a recipe can become ef fective in the PLC it must first be transferred via data record transfer to the C7 CPU e C7 CPU C7 OP Transfer the data record which is active in the C7 CPU to the C7 OP under a new number and a new name e C7 OP C7 OP Copy an already existing data record on the C7 OP Transfer screen The transfer screen is called via Records Transfer It is shown below a 1 No of the source data record No of the destination data record DOUrCe ta Pest 3 The recipe data record active in 7 the PLC Cee P 4
127. ct the standard screen The password input mask Password Login appears on the display This mask appears automatically on the display every time a function is called for which the current password level is too low The cursor is positioned on the first input field Enter the password using the system After entering each character the keyboard and then press cursor automatically jumps to the ENTER next field Every character input is shown as asterisk For valid passwords the corresponding password level is indicated 3 Close the screen with You change back to the previous ESC password level Logging out of the Select the standard screen Password Logout Upon selection of the C7 standard screen the C7 switches from the current password level to the lowest password level level 0 and branches to the message level C7 623 C7 624 Control Systems 6 26 C79000 G7076 C624 01 Operating the C7 General Automatic Call If a function requires a higher password level than the current one you are automatically requested to enter a suitable password when the function is called After entering the password you return to the calling function by pressing 4 ESC 6 6 1 Password Level and Access Rights Password Level During configuration you assign hierarchically ascending password levels from 0 to 9 for functions called by function keys soft keys and input fields The password levels assigned to the standard scre
128. d 1 First the setpoint is related to the total range RANGE_DEC resulting from the difference upper limit lower limit The result is a percentage of the absolute setpoint value This is identical in the floating point number and in the hexadecimal representation 2 Then the total range RANGE_DEC resulting from the difference UL LL is calculated in hexadecimal representation depending on the measuring range being unipolar or bipolar 3 Now the percentage PERCENT calculated before is related to the total hexadecimal range RANGE_HEX The result is the absolute value to be output 4 Finally the lower limit LL is added to this value as offset 5 The resulting bit pattern is output PERCENT setpoint lower limit upper limit lower limit RANGE_DEC upper limit lower limit RANGE_HEX UL LL Channel PERCENT RANGE _ HEX LL The FC127 function block contains the following statement lines C7 623 C7 624 Control Systems C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output FUNCTION FC 127 void var_input lower limit DWORD upper limit DWORD setpoint DWORD end_var var_temp LL DWORD UL DWORD RANGE_DEC DWORD RANGE_HEX DWORD PERCENT DWORD end_var BEGIN Case unipolar or bipolar measuring range L lower limit lower limit negative L 0 0 yes gt bipolar measuring range lt R JC bipo L DW 16 0000_0000 un
129. d the programmable controller There are digital input and outputs as well as analog inputs and outputs The integral universal inputs have special functions in the C7 interrupt counter inputs With SIMATIC S7 a code block is a block containing part of the STEP 7 user program In contrast to a gt Data Block which contains only data Point of time at which the C7 triggers a message output Communication processors are modules for point to point and bus connections When a central processing unit starts up for example after selecting a C7 CPU mode in the system functions menu or on power ON organization block OB 100 complete restart is executed prior to the cyclic program processing OB 1 On a complete restart the process image input table is read in and the STEP 7 user program is executed starting with the first instruction in OB 1 The PG online function Compress is used to shift all valid blocks in the RAM of the C7 CPU evenly and without any gaps to the beginning of the user memory All gaps caused by deleting or correcting of blocks are thus removed Defining plant specific defaults messages and displays using the ProTool Lite configuring software The configuration memory is a flash memory integrated in the C7 OP It is used for storing the configuring data C7 623 C7 624 Control Systems C79000 G7076 C624 01 Glossary 3 Glossary Control Job Counters D Data Block Data Static D
130. d in the C7 OP as having departed Table KEIN MERKER represents the number of message areas for event and alarm messages and alarm acknowledgement areas as well as the total length of all areas for both the C7 623 and the C7 624 Table 9 2 Message Areas of the C7 OP Device Event message bit area Alarm message area and alarm mes sage acknowledgement area Length words Number of Total length of each type words A message can be configured for every bit in the configured message area The bits are assigned to the message numbers in ascending sequence Example The following event message area is configured for the C7 CPU DB 60 Address 42 Length 5 in words Figure 9 1 shows the assignment of all 80 5 x 16 message numbers to the individual bit numbers in the control event message area The assignment follows automatically in the C7 OP 7 O 7 0 DB6o DBw42 tie tt 4 Message number Figure 9 1 Assignment of Message Bit and Message Number C7 623 C7 624 Control Systems C79000 G7076 C624 01 Data Areas for Communication between the C7 OP and the C7 CPU Acknowledgement As alarm messages indicate faulty behavior of some sort these must be acknowledged Acknowledgement follows either by e Appropriate action on the C7 or e By setting a bit in the acknowledgement area of the C7 CPU Acknowledgement If the C7 CPU is to be informed about an acknowledgement of an alarm
131. d level Password level will be evaluated 1 Password level will not be evaluated Parameter 2 n 8 First key code n 9 Second key code Function keys F1 1 F16 16 System keyboard C7 Parameter 3 For keyboard emulation via a control job please pay attention to the transfer time from the C7 CPU to the C7 OP For example The acknowledgement of an alarm message by keyboard emulation on the C7 CPU can lead to an undesired result if the alarm message in question has already been acknowledged by the C7 or if anew alarm message or system message arrives before the job has been evaluated Control Job with If the cursor lock parameter is not equal to zero in one of the jobs 11 51 53 Cursor Lock 72 and 73 the selected input field cannot be left using the cursor keys or the BREAK key The cursor lock will first be released e upon repeating the job with cursor lock 0 e or upon execution of another job which causes a change of the display If you try and leave the input field when the cursor is locked you will receive the system message 400 Invalid input C7 623 C7 624 Control Systems C 14 C79000 G7076 C624 01 C7 OP Functionality Standard Screens Control Jobs System Messages C 4 System Messages Introduction This chapter provides on overview of the most important system message with their causes and the action required to remedy the errors Message Number System messages on the OP can be placed in dif
132. d then specify 321 level 322 Password must contain at least 3 characters message text though an entry does not exist for the current message 324 The screen number or entry number in your input does not exist 335 Confirmation of alarm message inhibit 336 Printer cannot be addressed Check printer and connection to C7 337 338 Current password level too low for required operator Log in at higher password level input 323 In a buffer mask you pressed 339 Communication with controller resumed 340 You cannot operate the C7 with status function running on programming device 341 Internal error C7 623 C7 624 Control Systems 20 C79000 G7076 C624 01 O C7 OP Functionality Standard Screens Control Jobs System Messages This message indicates a data block error Variables x and y are used to identify the cause of the error variable x and the number of the receive block variable y Variable x 0 Wrong block length entered in receive block no y 1 Wrong number entered in receive block no y Correct the required block length or block number or send the correct data block Recipe transfer in progress During this time the operator panel is not ready for operator inputs Possible cause The PLC has not reset the corresponding control checkback bit which cancels the recipe inhibit state in DB TDOP C7 623 C7 624 Control Systems C79000 G7076 C624 01 C 21 C7 OP Functiona
133. dard Screens Control Jobs System Messages C 2 Brief Description of Standard Screens Introduction The table below presents an overview of all the standards screens for the units C7 623 and C7 624 As well as a brief comment on each function mention is made of the required password level The Level 1 column lists the screens that you can choose from the basic screen These screens allow you to make different calls which are listed under Level 2 The T detailed here relates to the supplied example configuration see section 63 Table C 2 Overview of Standard Screens Level 1 Level 2 Function Password Level Alarm Msg View e Display alarm messages in alarm message buffer e Display message text for a message selected in the alarm message buffer Alarm Msg Print Print alarm messages chronologically that is all message events arriving 2 departing acknowledged in the order of their occurrence Alarm Msg Number Display messages in the buffer differentiating between All Messages and Pending Messages Alarm Msg Delete all acknowledged and departed messages in the alarm message buffer 6 Alarm Msg Switch on off system messages at overflow of alarm message buffer Alarm Msg Display all alrm messages texts rz Event Msg View e Display event messages in event message buffer e Display message text for a message selected in the event message buffer Event Msg Print Print event messages chronologically that is all events
134. de change 133 Mode change 135 Mode change 136 No response from controller Check program execution in controller or physical connection 138 Data block no x not available in controller memory Create memory space C7 623 C7 624 Control Systems C79000 G7076 C624 01 C 1 N C7 OP Functionality Standard Screens Control Jobs System Messages Backup battery voltage has fallen below minimum Replace battery value or wrong battery type inserted Error during clock chip write hardware error Return device for repair Error when reading date Re enter date return C7 for repair Error when reading time Re enter time return C7 for repair Error when reading day Re enter day return C7 for repair Printer not ready and internal storage of print jobs is Ready printer or disable no longer possible message log capactity exceeded 206 Printer not ready print job will be stored temporarily Ready printer 207 Print job was aborted Check printer cable and connector 210 Internal error Refer to Action for internal errors 212 Internal error Refer to Action for internal errors 213 Off line mode not possible at present Try mode change again later 214 The job number configured by the C7 CPU or in a Check user program and screen is too large configured procress screen 217 The addresses of two variables overlap Modify configuration variable 218 220 Printer buffer overflow messages have been lost 22
135. declaration section of OB 40 You have to evaluate the additional information Z1 to Z3 in the start information C7 623 C7 624 Control Systems 4 18 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output Declaration The entries in the declaration section of OB 40 are listed in Table 4 14 The Section of OB 40 bytes relevant to the user are hatched in the Table Table 4 14 Declaration Section of OB 40 o_ eas ene earner C a i i OOO noo p Time tag of event Additional Additional information Z1 contains the initial address of the C7 I O module Information Z1 bytes 6 7 Address 272 or 01104 Additional Bit 4 of byte 8 1 in the case of an end of cycle alarm Information Z2 Additional Additional information Z3 is not used and assigned the value 0000H Information Z3 Evaluation in the The evaluation of process alarms in the user program is described in the User Program Manual 234 C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 19 Addressing Parameter Assignment and Function of the C7 Input Output 4 4 Use and Function of the Universal Inputs In this Section In this chapter you can find Basic terminology about the function of the universal inputs How you can use the universal inputs How you can address and assign parameters to the universal inputs 4 4 1 Addressing Universal Inputs Overview You can select the following functions by assigning the appropriate
136. deleted and modified on the C7 OP The data are stored on the C7 OP thus saving memory on the C7 CPU The use of recipes insures that when a data record is transferred to the C7 CPU several items of data are transferred to the S7 together and in a synchronized fashion Data records can be transferred from the C7 OP to the C7 CPU or from the C7 CPU to the C7 OP You transfer data records from the C7 OP to the C7 CPU to set specific values on the C7 CPU for example to produce orange juice It is similarly possible to fetch data from the C7 CPU and to store them on the C7 OP as a data record to save say a favorable assign ment of values To insure a coordinated procedure for transferring data records and to prevent any uncontrolled overwriting of data bits are set in control and response byte 3 of the interface area C7 623 C7 624 Control Systems C79000 G7076 C624 01 9 19 Data Areas for Communication between the C7 OP and the C7 CPU 9 7 1 Transferring Data Records Ubersicht When a data record is written the variables in the data record are written directly to the defined addresses concerned With direct reading the variables are read into the C7 OP from the system memories of the C7 CPU With ProTool the variables must have a direct link to the C7 CPU and the write directly attribute for direct transfer Variables not having an as signed address on the C7 CPU are not transferred 9 7
137. departure alarm messages also upon acknowledgement if this was set during the message configuration System messages are not logged directly If direct message logging follows another print function the header of the direct message log is re printed If the printer is disabled not ready or assigned to another print function up to 16 messages are stored temporarily Temporary storage of the messages for the message log is independent of the message buffer concerned Direct message printing can be enabled and disabled on line by means of a standard screen From the basic screen select System then System Settings Select the standard screen Printer Characters line s0 Lines page 72 Message logging Position the cursor on Message log Cursor is positioned on message ging logging Select the corresponding parameter Password is requested ON or OFF with O SHIFT and or Please repeat operation as in Step 3 and acknowledge Confirm with sA mi Leave the standard screen with Basic screen is displayed again C7 623 C7 624 Control Systems C79000 G7076 C624 01 Standard O I Functions Printing the You can print messages from the alarm and event message buffers but not Message Buffer from the system buffer e Chronologically this means all messages contained in the buffer of the message type concerned are printed in the order in which they are situated in the buffer e A
138. der The design sequence of the link inclusion in the screen directory and the relevant cross jump destinations are defined during configuration with ProTool or ProTool Lite You branch between the different screens by means of softkeys and configured cross jump destinations Branching from entries of different screens to one and the same screen is also possible see Figure 8 2 Cross jumps are not restricted to screen level but can branch to the message level too Another feature that can be configured is the choice of picture that you want to display on the C7 as your start screen Screen 1 Start screen a _ Figure 8 2 Principle of Screen Hierarchy In the following section you will receive by way of example an overview of a screen hierarchy design For exact details with respect to the configuration please refer to the ProTool or ProTool Lite user manual Example The C7 is used to operate and monitor a system for producing and bottling different fruit juices The system basically consists of a mixing unit and a bottling machine Mixing unit The ingredients of the fruit juices are contained in three tanks Depending on the juice that you wish to manufacture ingredi ents are mixed in certain proportions C7 623 C7 624 Control Systems C79000 G7076 C624 01 Extended O I Functions Bottling machine After the fruit juice has been mixed it flows into the bot tling tank after a valve has been opened and
139. dit Print Data records Record Edit Change Transfer System Settings System Operating mode Op mode Display message DispMsg System messages SysMsg Change language Language Date Time Date Time Printer parameters Printer Status Variable StatVAR Interface parameters IF1 IF2 Force Variable ForceVAR Edit Password Password Hierarchy of Standard Screens in the Example Configuration The Labels in are the Actual Messages Which Appear on the Display C7 623 C7 624 Control Systems C79000 G7076 C624 01 Operating the C7 General Branching in You change from message level to screen level with the key Here you Standard Screens can control and monitor the process or installation by means of suitable screens as well as perform system settings Example With reference to the standard screens a description of the procedure for branching between individual screens within the screen hierarchy is provided below Call up the basic screen from Its full name is displayed in the first the supplied standard screens line Depending on the C7 version and display size concerned the next lines include a different number of text elements of the current entry These text elements indicate the name of other standard screens to which you can branch
140. dress of an analog channel is always a word address Addresses An analog input output has the same start address for the analog input and output channels Figure 4 3 shows which channel addresses result You can see that for the analog I O the analog input channel and the analog output channel are addressed starting from the same address View of right hand side of C7 Analog inputs Al1 Channel 0 Address PIW272 Al1 M Al2 U Al2 Channel 1 Address PIW274 Al2 M 000000000000 o000000000000 AI3 M Al4 U Al4 Al4 M MANA Analog output ioa Channel 0 Address PQW272 Al3 U Al3 Channel 2 Address PIW276 Channel 3 Address PIW278 0000000 4 00000000 Inputs marked with this hatching are not relevant to this example Pin number Figure 4 3 Analog Input Output Addresses C7 623 C7 624 Control Systems 4 6 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output 4 3 2 Parameter Assignment for Analog I O Overview This chapter contains an overview of the analog I O and their parameters Parameter You set the parameters for the analog I O using the S7 Hardware Assignment configuration A parameter block is generated that contains all selected peripheral parameters After loading the SDB parameter the parameters are not immediately transferred to the analog I O The C7 CPU then transfers the parameters to the respective analog I O after every mode
141. dressing Parameter Assignment and Function of the C7 Input Output 4 1 Slot Oriented Address Assignment for Signal Modules 4 3 C7 623 C7 624 Control Systems 7 C79000 G7076 C624 01 i Contents 4 2 Addressing the C7 W O cece n en enes 4 3 Use and Function of C7 Analog I O 0 1 nes 4 3 1 Addressing Analog I O 1 cece nen tenn nnes 4 3 2 Parameter Assignment for Analog I O 0 0c ccc eee 4 3 3 Representation of Analog Values 0 0 0 ccc eee 4 3 4 Representation of Analog Values for the Measurement Ranges of Ne ANAIOG NPU ay as 689d em mk eee Boe as OA are ten a a ee 2 OS 4 3 5 Representation of Analog Values for the Output Range of the Analog QUTOUTS ce ccs renden Saree ae i ae i aae SSG ee saan dae 4 3 6 Conversion and Cycle Time of Analog I O 00 eee eee 4 3 7 Conversion Cycle Settling and Response Times of Analog Outputs 4 3 8 Behaviour of Analog VO 2 cette teens 4 3 9 Time Alarm Alarm Cycle 0 c ccc eee eee een ees 4 4 Use and Function of the Universal Inputs 02 0 0 00 eee 4 4 1 Addressing Universal Inputs 0 00 cece eee eee nes 4 4 2 Parameter Assignment of Universal Inputs 00 eee 4 4 3 Alarm Inputs 0 00 cc ee ete n eee t nee nees 4 4 4 Sorini cee E E E E E E E 4 4 5 Counter Alarms nannaa aunan eee eee eee eens 4 4 6 Frequency Counters 00 00 eee ene en ene 4 4 7 Period Time
142. dressing Parameter Assignment and Function of the C7 Input Output Diagram with The pins and associated addresses are shown in the diagram Universal Inputs 0o00000000000 o000000000000 Universal inputs Ground DI X1 DI X2 DI X3 DI X4 ooo0oo0000 oo0oo0o00000 Not used Inputs marked with this hatching are not relevant to Pin number this example Figure 4 6 Pins of Universal Inputs C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 23 Addressing Parameter Assignment and Function of the C7 Input Output 4 4 2 Parameter Assignment of Universal Inputs Parameter Block In parameter block universal inputs you set the parameters for Universal Inputs s Theanine e The counters e The frequency meter period time counter e Digital input always if alarm or count input deactivated Parameter You set the parameters for the universal inputs using the STEP 7 function Assignment Hardware configuration A parameter block is generated which contains all currently selected parameters of the universal inputs After loading this parameter block the C7 CPU then transfers the parameters to the appropriate universal inputs at every transition from STOP RUN Alarm Inputs If the universal inputs are used as alarm inputs a process alarm will be triggered at the C7 CPU for the assigned rising or falling edge at the input The default is the rising edge Counter Inputs The uni
143. duction The universal inputs counters can be assigned parameters for process alarm In this case a forward counter triggers a process alarm when it reaches the comparison value and a backward counter when it passes through zero Assignable Events The parameter assignment is performed with the STEP 7 Function Hardware configuration Process Alarm OB If a process alarm from the counter is sent to the C7 CPU then the process alarm OB OB 40 to the C7 CPU will be called The event that called the OB 40 is stored in the start information declaration section of the OB 40 You must evaluate the additional information C1 to C3 in the start information Declaration The entries in the declaration section of OB 40 can be found in Table 4 21 Section of OB 40 the bytes that are relevant to the user are hatched in the table Table 4 21 Declaration Section of OB 40 eas ener Beem C Aaionatinomaionzs i Additional information Z2 so Additional information Z3 Time stamp of event eo Additional The start address of the C7 peripheral module is contained in the additional Information Z1 information Z1 byte 6 7 Address 272 or 01104 Additional The serial number of the universal inputs that triggered the process alarm can Information Z2 be found in byte 8 of the additional information Z2 Byte 9 is irrelevant C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 31 Addressing Parameter Assignment and Function of the C7 Input Output
144. e OB1 is ended if not all counters are activated If all counters are active the read counter values are reassigned This is an optional feature which can be useful for specific applications If the same value must always be used within an OB1 cycle re assignment is recommended for example in the case of high counting frequency and relatively long cycles gt more than one accesses in OB1 might supply different values 5 OB40 This block is used for alarm evaluation A jump is executed by evaluating the information of the alarm vector register from the start information of OB40 LB 8 A memory byte is incremented as a function of the counter which has triggered the alarm OB40 is programmed to recognize even several quasi parallel alarms 6 OB35 OB35 is used to generate the count pulses The following wiring is required to execute the example Connect digital output 1 2 with DI X1 Connect digital output 1 3 with DI xX2 Connect digital output 1 4 with DI X3 In OB35 the output bits of the C7 digital outputs are toggled and the effect is a period time of 200 ms at each output correponding to a frequency of 5 Hz This value results from the 100 ms default alarm time of OB35 This means that each output is set to logic 1 for 100 ms and then also for 100 ms reset to logic 0 C7 623 C7 624 Control Systems 4 50 C79000 G7076 C624 01 S7 Status OB100 Statement Sequence Addressing Parameter Assignment and Func
145. e C7 OP If bit O is set to 1 data mailbox dis abled the transfer is terminated with a system error message If bit O is set to 0 the C7 OP sets the bit to 1 The C7 OP enters the identifications in the data mailbox With an indirectly transferred data record the data record values are also written to the data mailbox With a directly transferred data record the values of the variables are written to the configured address The OP sets bit 3 to 1 data transfer terminated The data record or the variable can be evaluated in the C7 CPU program You then have to acknowledge in the C7 CPU program whether the trans fer was error free or erroneous Error free bit 2 is set to 1 Erroneous bit 1 is set to 1 Reset bit 0 in the C7 CPU program e The C7 OP resets the bits set in step 3 and step 4 C7 623 C7 624 Control Systems C79000 G7076 C624 01 9 21 Data Areas for Communication between the C7 OP and the C7 CPU 9 7 4 Synchronization during Transfer Special Cases Transfer C7 OP gt Make sure with this type of transfer that the current variables on the C7 OP C7 CPU are transferred The values are not read directly from the data medium initiated by CEN Table 9 5 Procedure for Transmission Erklarung fo In the S7 program request the data mailbox lockout by setting bit 6 to 1 a If lockout is possible the C7 OP sets bit O to 1 and simultaneously resets bit 6 to 0 In the S7 progra
146. e assigned once only and in one CPU Keyboard image Bit number 7 6 5 4 3 2 1 0 7 6 54 3 2 1 tel SAT GSE ms f S ak F E D C B A 7 9 8 7 6 5 4 3 2 1 0 Keyboard group bit 2nd word 1st word Note Unused bits may not be overwritten by the application program Keyboard Group The keyboard group bit serves as the control bit It is set to the value 1 for Bit each transfer of the keyboard image from C7 OP to C7 CPU After evaluation of the data area by the application program it should be reset By regular reading of the group bits you can determine in the application program whether the image of the system keyboard has been newly transferred C7 623 C7 624 Control Systems C79000 G7076 C624 01 9 9 Data Areas for Communication between the C7 OP and the C7 CPU 9 4 2 Function Keyboard Image Data Areas The image of the function keyboard can be categorized into separate data areas e Maximum number of data areas 4 e Total length of all data areas words 4 Key Assignment The assignment of the individual keys to the data area bits is defined during the configuration of the function keys The number within the image area is declared for every key The function keyboard image must also be declared in the configuration under area pointer type function keyboard Keyboard Group The most significant bit in the last data word of every data are
147. e cursor within the input field for date or time The day of the week is set via a symbolic entry 3 Confirm entry with ENTER The scheduler is now activated C7 623 C7 624 Control Systems C79000 G7076 C624 01 8 9 Extended O I Functions Deactivating You can delete the scheduler time in a screen entry by pressing the DELETE schedulers key The scheduler is then deactivated 1 e the configured function will not be executed C7 623 C7 624 Control Systems 8 10 C79000 G7076 C624 01 Data Areas for Communication between the C7 OP and the C7 CPU In this Chapter In this chapter you receive information concerning configuration parameters that are necessary for the communication between the C7 OP and the C7 CPU The communication is achieved using two data areas e The user data area and or e The interface area The functions construction and special features of the various user data areas and the interface areas are described in this chapter 2 Ov 3 4 e BT 943 ue Imes 3 a A L 9 1 2 Addressing Recipes and Data Records and the Requisite Data Areas Synchronization during Transfer Normal Case Synchronization during Transfer Special Cases 2 98 Rowson Opimizaon E E E C7 623 C7 624 Control Systems C79000 G7076 C624 01 9 1 Data Areas for Communication between the C7 OP and the C7 CPU 9 1 Configured Communications Parameters Parameters In the configuration software
148. easured frequency C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 35 Addressing Parameter Assignment and Function of the C7 Input Output 4 4 7 Period Time Measurement Overview The universal inputs 3 can be assigned as period time counter This universal input reads pulses from a transducer The transducer could for example be fitted to the barrel extruder of an injection moulding machine Application Calculation of low frequencies and rotation speeds Principle The period time counter counts the number of increments fixed time intervals of tzi 0 5us between two rising edges The first period starts at the first transition from 0 to 1 rising edge It ends at the next rising edge This is also the start of the next period From this a period time can be calculated tp number of counted increments 0 5uUs In addition for every rising edge a counter is started that increases its value by 1 every 0 5us until the next positive edge occurs The period time counter can be defined with a resolution of 0 5us C7 623 C7 624 Control Systems 4 36 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output Explanation of Diagram 4 10 illustrates a simple transducer The transducer delivers 1 Principle Based when the light passes through one of the slots in the disc If the discs rotates upon a Simple then the transducer delivers the signal shown in the diagram Transduc
149. els should be deactivated in S7 Configuration in order to reduce the cycle time Figure 4 5 illustrates in overview how the cycle time for a 4 channel analog input is composed Conversion time 1 Conversion time 2 Cycle time max 2 5ms Calibration measurement Figure 4 5 Cycle time of an Analog Input started unless the timed interrupt is initiated see Section 4 3 2 Alarm Cycle If the alarm cycle mode is parameterized the new nee se is not C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 15 Addressing Parameter Assignment and Function of the C7 Input Output 4 3 7 Conversion Cycle Settling and Response Times of Analog Outputs Introduction This chapter contains the definitions and relationships between relevant times for the analog output Conversion Time The conversion time includes the acceptance of the digitized output value from the internal memory and the digital analog conversion Cycle Time The cycle time i e the elapsed time before an analog output value is converted the next time is equal to the time for the conversion of the one analog output Settling Time The settling time tz to t3 that is the elapsed time between the creation of the converted value and the attainment of the specific value at the analog output is load dependent One must differentiate between resistive capacitive and inductive load Response Time The response time that is the interval between providing the digital out
150. em oriented channel specific diagnostics info Operating mode RUN STOP Watchdog activated Rack failure EEPROM error ADC error Process alarm lost C7 623 C7 624 Control Systems C79000 G7076 C624 01 1 error occurrence everything OK 1 watchdog EPROM ADC error 1 error at AI or AO 1 with byte O bit 2 and channel specific diagnostic byte byte 4 Base condition standard parameter set byte 0 bit 0 0 1 with bit O of byte 8 9 10 11 or 15 Standard parameter for channel set SM type class SM type class SM type class SM type class with bit 1 of byte O Serial calibration EEPROM for analog measured values calibration set with bit 1 of byte O with bit 1 of byte 0 5 5 Diagnostics Table 5 2 Layout of the Diagnostics Area Continued Range 05 0 7 nmre A ees bits per channel a diagnostics entry AII Alteration diagnostics entry AI2 Alteration diagnostics entry AI3 Alteration diagnostics entry AI4 Parameter error in parameters for channel Wire breack in software O no 1 yes only for 4 20mA Measurement underrange 0 no 1 yes underflow Measurement overrange 0 no 1 yes overflow Parameter error in parameters for channel Wire break in software 0 no yes only for 4 20mA Measurement underrange 0 no 1 yes underflow Measurement overrange 0 no 1 yes overflow Parameter error in parameters for channel Wire breack in
151. ens are listed in Appendix C I When an operator is issued a password s he is simultaneously granted permission to execute functions at a specific password level Table 6 4 Password Level Password Explanation level At this level the lowest in the hierarchy functions are assigned which when executed have no or little effect on the course of the process these are normally calls for functions which have no input options for example viewing message buffers A password is not required to call functions with password level 0 If an operator calls a function of a level other than 0 he is prompted to enter a suitable password of the password management responsibilities Permission to execute functions of password level 9 is solely reserved for the super user who has access to all of the C7 functions Only a super user is allowed to perform password management The password for level 9 functions is created at the time of configuration 1 8 Levels 0 to 8 are assigned to functions with ascending priority A password level is assigned to a password by the super user as part C7 623 C7 624 Control Systems C79000 G7076 C624 01 6 27 Operating the C7 General 6 6 2 Password Management Overview Displaying the Password List 6 28 Only the super user password level 9 is authorized to call the functions for password management standard screen Password gt Edit Upon delivery of the C7 the default setting of
152. er Slot disc 1st period 2nd period 3rd period Increments Period Time Counter A A tzi 0 5us Z Counter value Counter value 1st period 2nd period tp Counter value 0 5yus Figure 4 10 Simple Transducer for example a Slot Disc on a Shaft If you know the number of pulses that are delivered by the transducer for each revolution of the barrel extruder then you can calculate the speed with which the barrel extruder is rotating An example follows N 16 pulses are generated per revolution of the barrel extruder N is also known as the slot number of the transducer The interval between 2 pulses is 50000 increments fixed time interval The rotational speed of the barrel extruder is calculated as follows 1 1 1 rev SS SS a Nx ti 16 x 50 000 x 0 5 us 5 min C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 37 Addressing Parameter Assignment and Function of the C7 Input Output Lower Threshold The period time counter generates a 24 bit counter value These 3 bytes can represent values up to FF FF FFy 16777214 decimal From this the lower threshold frequency for N 1 is when taking into account the period time stated below tp 8 39 s fu tp 16777214 0 5us 8 39s fu 0 119Hz And for N 1 the lower threshold rotation speed S eee eee ee l rev Y Nx ti 1 x 839s E a Upper Threshold The upper threshold frequency results from
153. er is output C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 45 Addressing Parameter Assignment and Function of the C7 Input Output Summary of PERCENT channel LL UL LL Formulae RANGE_HEX UL LL actual value PERCENT upper limit lower limit lower limit C7 623 C7 624 Control Systems 4 46 C79000 G7076 C624 01 FC126 Sequence of Statements Addressing Parameter Assignment and Function of the C7 Input Output The FC126 function block contains the following statement lines FUNCTION FC 126 void var_input lower limit DWORD upper limit DWORD channel DWORD end_var var_output actual value DWORD end_var var_temp LL DWORD RANGE_HEX DWORD PERCENT DWORD end_var BEGIN Case unipolar or bipolar measuring range L lower limit lower limit negative L 0 0 yes gt bipolar measuring range lt R JC bipo L DW 16 000_00000 unipolar range lower limit TLL JU comp bipo NOP 0 L W 16 9400 bipolar range lower limit ITD TLEL Computing the range hexadecimal comp NOP 0 L W 16 6C00 upper limit for unipolar and bipolar range identical ITD L LL _D T RANGE_HEX buffer difference C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 47 Addressing Parameter Assignment and Function of the C7 Input Output Relating actual value to total measuring range L channel relate input value to total range ITD BEE D D
154. ere is the Cursor Explanation Input or combined If information text exists illuminated LED it is Input Output field displayed by pressing the HELP key Pressing the HELP key a second time displays information text associated with the screen entry if configured Field without information If the HELP key is pressed in a field for which text information text is not available information text associated with the screen entry if configured is displayed Screen You receive the configured information text for a screen either e By pressing the HELP key in the directory con tents when the cursor is situated on the corresponding screen e Or within a screen when the cursor is positioned on the screen title C7 623 C7 624 Control Systems C79000 G7076 C624 01 1 23 Standard O I Functions Browse Leave You can browse through the information text by means of the vertical Information Text IN VZ cursor keys and 2g T You leave the information text screen by pressing eal The original screen is then displayed C7 623 C7 624 Control Systems 1 24 C79000 G7076 C624 01 Standard O I Functions 7 4 Recipes Overview Recipes are combinations of variables for a certain purpose The purpose of recipes is to transfer data together to the C7 CPU During configuration the recipe is used to specify the data structure This structure is then assigned with data in the C7 OP Since multiple assignment of the data structu
155. erred between PG PC and C7 eeN not Firmware cannot Late a used for current configuration compatible EPROM Memory submodule defective internal hardware error Return device for repair with details memory of failure error RAM memory failure Flash Memory submodule defective or transfer failure Repeat download configuration or memory return device for repair failure C7 623 C7 624 Control Systems C 16 C79000 G7076 C624 01 C7 OP Functionality Standard Screens Control Jobs System Messages 006 Error during data transfer in Download mode Check connection repeat download message with two variables VAR 1 Status display S zw N Internal error Time out error Parity error Framing error Overrun error Line interruption Receive buffer overflow Wrong control character Internal error 1 3 5 6 7 8 9 1 1 040 No response from controller Cable defective or not plugged in Check physical connection 041 Temporary driver error Restart PC Download configuration 100 Invalid RAM contents 104 Download mode canceled by pressing a key 106 Serious error eliminated and key pressed 108 Mode change 110 Mode change 114 Controller cold restart 115 Establishment of logical link 117 Connection to Controller OK again following a fault 119 Automatic start of C7 password list is not deleted 125 Language changed by standard screen or control job 131 Mo
156. es Table 4 12 Behaviour of the Analog Input in Relation to the Position of the Analog Input Value in the Value Range Ronan occa Upper range lower Process value range KEIN MERKER According to parameter assignment C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 17 Addressing Parameter Assignment and Function of the C7 Input Output Influence of the The behaviour of the analog output is dependent upon the position of the Value Range for output value within the value range Table 4 13 illustrates this dependency the Output for the analog output values Table 4 13 Behaviour of the Analog Input in Relation to the Position of the Analog Input Value in the Value Range Output Value lies Output Diagnostics Alarm in Value Roniaranes ova sd Upper range lower C7 value range Influence of Errors Errors lead to a diagnostics message and diagnostics alarm if diagnostics parameters have been assigned sed Section 2 of the Manual Chapters 4 3 1 and 4 3 9 Time Alarm Alarm Cycle Alarm Cycle If the alarm cycle mode is parameterized the new measuring cycle is not started unless the time alarm is initiated see Section 4 3 2 Parameterizable Use the STEP 7 function Hardware configuration for parameter assignment Events Process Alarm OB If a process alarm is transferred from the I O to the C7 CPU the process alarm OB OB 40 is called in the C7 CPU The event which called OB 40 is stored in the start information
157. es in the following manner Modes Table 2 1 Select C7 CPU Mode Mode Key Keys Explanation C7 623 C7 624 The C7 CPU processes the user program Programs and data can e Be read out from the C7 CPU with programming device C7 programming device e Be transmitted to the C7 CPU programming device C7 exception OB1 The C7 CPU processes the user program Programs and data in the C7 CPU can be read out using the programming device C7 programming device The pro gram cannot be loaded or altered Data cannot be loaded or altered The C7 CPU is not processing an user program Programs can e Be read from the C7 CPU using the programming device C7 programming device e Be transmitted to the C7 CPU programming device C7 Note The operating mode STOP is valid only for the C7 CPU It is not valid for the C7 OP Further processing with the C7 OP is possible Memory reset The memory reset of the C7 CPU erase memory reload user program from flash memory requires a special operating sequence of the modes STOP and MRES see Chapter 2 3 If data that is required in the configuration was destroyed during the memory reset then a corresponding error message is issued by the C7 OP Note The MRES position is not a momentary contact state which means that the MRES status persists For the C7 CPU the MRES status is only a control mode When this mode is set permanently the C7 CPU does not function pro
158. esponding alarm message area If an alarm message is acknowledged at the C7 OP the corresponding bit is set in the acknowledgement area C7 OP C7 CPU Thus the S7 can recognize that the alarm message has been acknowledged The acknowledgement area C7 OP C7 CPU can have the same maximum length as the corresponding alarm message area The acknowledgement areas may not be larger than the corresponding alarm message area It can however be configured to be smaller if it is not necessary to acknowledge every alarm message Figure 9 4 clarifies this case Alarm message area Reduced alarm message Alarm messages acknowledgement area that can be acknowledged Bit O Bit O Me ee Alarm message Bit m that cannot be acknowledged Figure 9 4 Reduced Acknowledgement Area Note Allocate important alarm messages whose acknowledgement is to be signalled to the C7 CPU in the alarm message area from bit 0 in an ascending order C7 623 C7 624 Control Systems C79000 G7076 C624 01 9 7 Data Areas for Communication between the C7 OP and the C7 CPU 9 4 Keyboard and LED Image Application Prerequisite Transfer Value Allocation 9 8 Key presses on the C7 OP can be transferred to the C7 CPU and evaluated This way control of an action for instance switching on a motor can be triggered The LEDs in the C7 s function keys can be controlled It is therefore possible to signal the user via a lit up LED wh
159. est only for measurement range 4 20 mA Measurement e Type of measurement Deactivated Voltage Voltage Current e Measurement range 10V 20mA 4 20mA Alarm cycle e Alarm Yes No e Alarm time Unsolicited 3ms 3 5ms 4ms 4 5ms C7 623 C7 624 Control Systems 4 8 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output Alarm Cycle If parameters are assigned to this mode of analog inputs then e A measurement cycle will be processed Channel 1 2 3 4 e The measured value of each measured channel will be made available to the application program for collection e After expiry of the alarm time in the C7 CPU a process alarm will be triggered and a new measurement cycle initiated A D conversion A D conversion of the channels of the channels a y ao N Nn O Q je al A to C7 CPU e 0 5ms z gt Measurement cycle Assigned alarm time Figure 4 4 Sequence of the Measurement of all 4 Channels with an Assigned Measurement cycle If individual measurement channels are deactivated then the measurement cycle will be correspondingly shorter Parameter Table 4 3 shows which parameters Characteristics of e Are static or dynamic Analog Inputs e Can be set for all or individual analog inputs Table 4 3 Parameter Characteristics of Analog Inputs Static Dynamic Effective Range Enable diagnostic alarm Static Anal
160. et up for one recipe This permits a fruit juice plant to operate with different types of drinks for example by using a differ ent data record for each type of drink Name DETAR Nectar Juice Orange SON Ae SE Joal Water KON eh oll Oeil Sugar li REG PERO Oe all Aroma MAOH GF 400 g KOORE m o o a o ii sie Entries of the recipe Data record 1 Data record 2 Data record 3 Mixture All data records are stored on the OP Only the data record which is active at the moment is stored on the PLC This saves memory space in the PLC C7 623 C7 624 Control Systems 1 26 C79000 G7076 C624 01 Identification of recipes and data records Standard screens for data records Directory for recipes Standard O I Functions A recipe is identified by a recipe number and a recipe title specified during configuration A data record is identified by a data record number and a data record name assigned in the OP The clear and unmistakable identification factor for a data record is the data record number and not the data record name This means that although several data records with the same name may ex ist several data records with the same number cannot exist If no name is assigned to a data record it is assigned the name data record Standard screens with the following functions are available for data records Record Edit Print Transfer Transfer data records from the OP to the PLC or vice versa
161. eters changing 6 21 Internal error J Job area 9 16 K Key assignment function keybord image 9 10 Key functions Key labeling function C7 623 C7 624 Control Systems C79000 G7076 C624 01 Keyboard C7 623 C7 624 group bit functions keyboard 9 10 system keyboard image 9 9 Keyboard emulation C 14 Keys arrow keys 6 4 DIR 7 19 display contrast adjustment 6 4 Recipe directory 6 3 second function L LAD Language C 4 setting Languages Last value LED 8 3 acknowledge assignment condition information text 6 4 shift 6 3 LED activated LED assignment bit number 9 11 LED image 9 11 Left justified input Limit value check Lines on display C 2 Load control program Load memory Local data Logging Logging in LOGIN 6 26 Logging out LOGOUT LOGIN LOGOUT 6 26 Lower threshold period time 4 33 M Measured value analog input 4 12 Measured value resolution C7 623 C7 624 Control Systems C79000 G7076 C624 01 Index Measurement parameter block type of Measurement period frequency calculation 4 33 Measurement ranges 4 11 Measuring cycle alarm c cle 4 8 memory area pointers Memory byte Memory reset 2 10 Message bit 9 4 Message bit procedure Message level 6 display number area l 12 leaving selecting 7 2 Message logging 6 22 activating deactivating 6 22 On Off
162. evel Simultaneous pressing of more than one key may result in erroneous input You can call up freely configurable functions up with the function keys K1 K16 Every key has its own LED seg Figure 6 1 which can be controlled from the C7 CPU The soft keys F1 F4 C7 623 or F1 F8 C7 624 underneath the display can be configured with different functions depending on the display C7 623 C7 624 Control Systems C79000 G7076 C624 01 Operating the C7 General J T ESC Function The key has various functions depending on the settings of the function level This is explained in Table 6 2 Table 6 2 Function of the ESC Key Cancel Pressing ESC cancels field inputs provided that they have not been confirmed with ENTER Branch backwards If the ESC key is pressed within a screen you branch back to the configured cross jump destination by default the last position called and finally from the start screen to the message level You cannot branch back further than the message level Hide system message At message level the ESC key is used to hide a system message Cancel display of To cancel the display of information text press ESC to information text return to the previous display Reset while scrolling through To cancel scrolling through messages at the message messages level press ESC to reset the display to the current message C7 623 C7 624 Control Systems C79000 G7076 C624 01 6 5 Operating the C7
163. ferent categories Information on the category to which a system message belongs is contained in the message number Message number g ULI Message text Driver error Startup message Warning Note Operating error Other message Configuration error Internal error Message Category The message category gives you a rough idea of the cause of a system message A few important system messages are shown below together with their causes and the action that has to be taken Self explanatory system messages are not included Note Messages are displayed in English until configuration data have been downloaded to the C7 Procedure for Proceed as follows for all system messages that relate to internal errors Internal Errors 1 Switch off the C7 then restart it 2 Put the C7 in Download mode during start up refer to Section 2 1 download the configuration again and restart the C7 3 If the error continues to occur please contact the nearest Siemens branch office Report the number of the error that has occurred and any variable that may be included in the message C7 623 C7 624 Control Systems C79000 G7076 C624 01 C 15 C7 OP Functionality Standard Screens Control Jobs System Messages Messages The following tables list the most important messages their causes and possible action to take Ready for Waiting for data from PG PC transfer Data Data transfer Data Data being transferred between PG PC and C7 transf
164. for transferring data from the programming device to the C7 and vice versa A distinction is made between a transfer S7 trans via the MPI and via the printer port trans The user memory contains gt Code Blocks and Data Blocks of the user program The user memory is integrated in the C7 CPU as flash memory In general however the user program is executed from the Work Memory of the C7 CPU The user program contains all instructions declarations and data for signal processing that are used for controlling a plant or process It is assigned to a programmable module e g C7 CPU FM and can be split up into smaller units blocks The work memory is a RAM in the C7 where the processor accesses the user program during program processing C7 623 C7 624 Control Systems C79000 G7076 C624 01 Index A Access rights Acknowledge key Acknowledgement bit groups 7 5 Acknowledgement procedure 9 6 Acknowledging alarm messages Activated LED Actual value of counter calculate aaa information 4 19 Address assignment customer specific module signal modules Addresses analog function A 6 universal input Addressing Addressing of recipes and data records Alarm Alarm acknowledgement number overflow paging through print suppressing 7 5 texts unacknowledged Alarm message buffer deleted automatically viewing 7 11 C7 623 C7 624 Control Systems C79000 G7076 C62
165. g the Processing time for the timers the sum of all the times listed below is valid 0 4 ms Process input image transfer time 0 3 ms Process output image transfer time 1 74 Operating system run time 0 1 ms Rack monitoring 1 5ms User program execution time 4 04 ms Processing time for the S7 timers For four timers the single update takes 4 x 7 us 0 03 ms The execution time for the timers is calculated as follows 4 04 ms ae x 0 03 mS 0 04 ms C7 623 C7 624 Control Systems C79000 G7076 C624 01 Control with the C7 CPU e 2nd subtotal The response time not including the delay times of the inputs and outputs is calculated from the total of 4 04 ms Result of the first subtotal 0 03 ms Processing time for S7 timers 4 07 5 ms e Delay times for the inputs and outputs The digital input of the C7 has an input delay of max 4 8 ms per channel The delay time of the digital output of the C7 can be neglected The analog input of the C7 has a resolution of 12 bits The conversion time per channel is approximately 0 5 ms All four channels are supposed to be active Calibration measurement must be enabled The cycle time is thus 2 5 ms The analog output of the C7 has a conversion time of 0 8 ms per channel A settling time for the ohmic load of 0 1 ms must be added to this This yields a response time for the analog output of 0 9 ms e Response times with delay times of
166. h C7 Overview C7 OP Operator Interface Functions Screens Operational states current process values and faults can be visualized with the C7 In addition you can perform inputs to the C7 that will be written to the C7 CPU Machine diagnostics functions can also be configured in the C7 The C7 offers a series of standard functions The screens and the operation of the C7 can be optimally tailored to the individual requirements of the process during the configuration The C7 OP processes the O I functions configured for the C7 It is independent of the C7 CPU and is still operable for example if the C7 CPU enters the STOP state The C7 OP is assigned a separate MPI address and connected to the C7 CPU via the MPI interface This interface forms the link between the C7 OP and the computer used for configuring programming device PC The basic functions of a C7 consist of the visualization of process states and the operation of the process The sequence of operator prompting 1s controlled by a configuration to be planned and loaded by the user The following display and operator functions can be configured for C7 e Screens e Event messages e Fault messages e Recipes e Information texts e Logging e Multi language operator prompts Logically related process data from the control system can be displayed together in one screen and changed individually as appropriate A screen comprises several screen entries since for examp
167. h than the change of rotary speed in an electrical drive e The approximate value for the polling time is around 1 second e Avoid cyclic transfer of the user data area Polling time 0 Instead of this use the control jobs to transfer the user data areas spontaneously e Place the variables of a message or a screen without gaps in one data area e In order that changes in the C7 CPU are recognized by the C7 OP they must at least be impending during the actual polling time C7 623 C7 624 Control Systems C79000 G7076 C624 01 9 23 C7 623 C7 624 Control Systems C79000 G7076 C624 01 SFCs and SFBs in the C7 CPU C7 623 C7 624 Control Systems C79000 G7076 C624 01 A SFCs and SFBs in the C7 CPU Introduction The C7 CPU provides you with various system functions for example for program handling and diagnostics You invoke these system functions in your user program with the number of the SFC or SFB You will find detailed descriptions of all system functions in the Reference Manual 235 Real Time Clock For the clock functions the CPU offers you the following system functions Function SFC No Name Description Execution Time SFC SET_CLK Setting the clock time If the clock to be set is a master clock the clock time synchro nization is triggered simultaneously If the clock to be set is a slave clock only the clock time is set ie READ_CLK Reading the clock time 190 ps 190 ps SET_RTM Setting the oper
168. has been set the with E gt required password is requested ENTER by the system Enter the password and acknowledge The parameter list is displayed with amp ENTER 2 Quit the special screen with ESC Leave the standard screen with Z You are changed to the previous ESC level C7 623 C7 624 Control Systems C79000 G7076 C624 01 6 21 Operating the C7 General Changing Printer Parameters Activating Deachivating the Message Logging 6 22 The parameters set as default parameters for the C7 OP interfaces during configuration can be modified by means of the standard screen You can set the following e Characters per line parameter values 20 40 or 80 e Lines per page parameter values 60 to 72 e Message logging ON OFF To set the printer parameters follow the procedure outlined below From the basic screen choose System and the screen level system settings Select the standard screen Printer Characters line J Lines page 72 Message logging ON Using the arrow keys scroll through the parameter list on the display to the required parameter Choose the value for the parameter by New parameter is set using a symbolic value to be configured in advance Confirm the changed parameter If a password has been set the required password is requested by the system Enter the password and acknowledge The parameter list is displayed again B Quit the spe
169. he comparison value is reached and counting is restarted beginning with zero Due to the immediate reset the specified comparison value never can be read out In the following program example the universal inputs are parameterized as follows UII counter C1 UP counter C2 UI3 counter C3 UI4 standard digital input not used in the example The three counters are parameterized as follows alarm yes counting direction forward edge rising C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 49 Addressing Parameter Assignment and Function of the C7 Input Output Execution of block 1 First all three counters are stopped at start up This is necessary so that the counter will start counting at zero after a complete restart If this is not required that is if the counter must continue after a restart with its old value the counters must not be stopped 2 After a waiting time of about 10 ms a comparison value is written for each counter This waiting time is required so that the STOP command for the counters can become effective on the C7 module In the complete restart OB OB100 the times are not critical since the cycles are not monitored 3 Immediately after the comparison value has been written the comparison values are declared valid and the counters are started 4 OBI The counter values can be read cyclically in the OB1 The counter status bits are evaluated to ensure that the counters are activ
170. he keys of the C7 can be driven by the C7 CPU This way it is possible to signal to the user that a certain key press makes sense in a given situation For LED control it is necessary to create an LED image on the C7 CPU In the configuration two bits are assigned to every LED in the LED image area These two bits can be used to implement four different states off steady light low speed flashing and high speed flashing The structure of the LED image is described irf Section 9 4 3 C7 623 C7 624 Control Systems C79000 G7076 C624 01 8 Extended O I Functions Table 8 2 Control Functions continued Evaluating the The C7 stores information about the object type called in its screen screen number number area Thus it is possible for information about the current display contents of the C7 OP to be transferred to the application program on the C7 CPU and from there for certain reactions to be triggered for example calling another screen The structure of the screen number area is described in Section 9 5 Function keyboard By pressing a function key on the C7 you can set a bit in the image function keyboard image in the C7 CPU This bit can be evaluated via the application program In order to achieve this you must first create the necessary data area on the C7 CPU for the keyboard image and specify the appropriate area pointer in the configuration for assigning the key to a bit A maximum of two pressed keys can be
171. ht in the field for password level 4 Enter a password level 1 8 for the password and confirm it ESC To change a password call the password entry in the same way as you do for allocating a password and enter the new password by overwriting the old one If you just want to change the password level and not the password skip the field containing the password entry by pressing ENTER Then move the cursor with the right arrow key to the field for the password level and enter the new level To delete a password call the password entry in the same way as you do for allocating and changing a password but overwrite the first character of the password with a zero C7 623 C7 624 Control Systems C79000 G7076 C624 01 6 29 C7 623 C7 624 Control Systems C79000 G7076 C624 01 Standard O I Functions In this Section Messages 1 3 5 Transferring Data Records E 3 E Deleting Data Records 3 STATUS VAR and MOD VAR with the C7 OP 3 3 C7 623 C7 624 Control Systems C79000 G7076 C624 01 7 1 Standard O I Functions 7 1 Messages Overview Events and states in the control process are shown on the C7 display by way of messages A message consists of static text as a minimum If required variables are integrated into a message The following types of message are displayed on the C7 e Event messages e Alarm messages e System messages Selecting Message You get into the message level by pressing Level ESC Leavi
172. ich key she should press depending on the situation In order to enable this possibility you must configure the appropriate data areas so called images in the C7 CPU and declare them as area pointers during the configuration The keyboard image is spontaneously transferred That means the transfer always happens if a change is registered at the C7 OP In this case you do not need to configure a polling time A maximum of two simultaneous key presses can be transferred at one time e All keys except SHIFT key As long as the corresponding key is pressed the assigned bit in the keyboard image has the value 1 otherwise it has the value 0 Bit value Key pressed e SHIFT key When the SHIFT key 1s first pressed the assigned bit in the keyboard image receives the value 1 This state remains also after letting the key go until the SHIFT key is pressed again Bit value t pressed C7 623 C7 624 Control Systems C79000 G7076 C624 01 Data Areas for Communication between the C7 OP and the C7 CPU 9 4 1 System Keyboard Image Layout The system keyboard image is a data area with a fixed length of two data words Every key of the system keyboard is assigned exactly one bit in the system keyboard image with the exception of the DIR key and the cursor keys The system keyboard image must also be declared as area pointer type system keyboard in the configuration This image can b
173. in recipe no x BIN format 660 Invalid destination configured for cross jump in screen Add to configuration and repeat download 662 Invalid destination configured for cross jump in screen Add to configuration and repeat download C7 623 C7 624 Control Systems C79000 G7076 C624 01 C 27 C7 OP Functionality Standard Screens Control Jobs System Messages Incorrect configuration x x 1 8 Change configuration of Variable x process link and transfer Data type does not correspond to DB or l l x 9 13 Change configuration of area DB length greater than 1024 pointer and transfer again DW is in data block header x 14 Restrict configuration and Actual value is not in send block transfer again DB number greater than 15 Setpoint is not in receive block Setpoint actual value is not in receive block Initial value is not in send block O o N Aaa BPW NY Data type does not correspond to DB DB number greater than 15 DB length greater than 1024 DW is not in data block header Area located in wrong DB Sum of data blocks too high Too many variables were requested simultaneously Remedy Configure a longer basic clock fewer variables in the screen 681 The link between OP and controller is disturbed The interface parameters are possibly set incorrectly 682 Configure fewer process links for the screen currently displayed C7 623 C7 624 Control Systems C 28 C79000 G7076 C624 01 C7 OP
174. in time 1 e hourly daily weekly annually at which a certain function is to be executed Up to 48 schedulers and their corresponding functions can be configured A scheduler is contained in a screen entry where it can be entered changed or deactivated when the screen is displayed When a scheduler time is reached the configured bit is set in the interface area of the PLC Seg chapter 9 or detailed information on the interface area of the C7 CPU The following functions can be called via schedulers e Print alarm message buffer chronologically or together e Print event message buffer chronologically or together e Select screen e Print screen e Print data record The schedulers have already been preset via configuration A scheduler can be changed or deactivated via input fields in a screen entry The scheduler is activated as long as a time is displayed in the input field The LED of the DELETE key goes on when a scheduler is activated Acti vated means that the configured function will be executed when the sched uler time is reached If the input field contains the scheduler is deacti vated Proceed as follows to set a scheduler time 1 Select input field You can use the cursor keys to switch between scheduler type and day of the week field and date field and time field 2 Enter scheduler time Date and time are entered via the system keyboard Activate the SHIFT LOCK combination to control th
175. ins after Clearing the C7 CPU Commissioning Start Up Select the STOP by pressing the corresponding function keys The STOP lights up Select the MRES function memory reset and wait approx 3 seconds until the STOP LED lights up again Immediately after the STOP LED lights up again select STOP with the corresponding function keys and then MRES a second time Result Ifthe STOP LED flashes for approx 3 seconds and then lights up again everything is O K C7 has been completely cleared Ifthe STOP LED does not flash or other indicators light up or flash exception BATF LED repeat steps 4 and 5 perhaps evaluate the diagnostic backup of the C7 using the programming device Ifthe BATF and the SF LEDs on the C7 light up the buffer battery is absent If a buffer battery is indeed fitted then you must search the diagnostic backup of the C7 CPU for additional error entries In order to be able to continue working you must set the C7 CPU to STOP or RUN RUNP The STOP LED flashes during the memory reset of the C7 CPU and the following process is performed L The C7 CPU erases the entire application program in the work memory and in the load memory The C7 CPU erases the backup memory The C7 CPU tests the hardware If an application is stored in the integrated flash memory of the C7 CPU ontents will be automatically copied into the load memory see Load Erase If no application is
176. ipolar range lower limit TLL JU comp bipo NOP 0 L W 16 9400 bipolar range lower limit ITD T LL Calculating the range hexadecimal rech NOP 0 L W 16 6CO00 upper limit for unipolar and bipolar range identical ITD LL _D T RANGE_HEX buffer difference Relating setpoint to total measuring range L upper limit compute range L lower limit R T RANGE_DEC C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 43 Addressing Parameter Assignment and Function of the C7 Input Output L setpoint relate setpoint to total range L lower limit R L RANGE_DEC R T PERCENT Computing hex pattern to be output L RANGE_HEX relate hex value to total range DTR L PERCENT R LLE add offset DTR R RND convert floating point number to 32 bit integer T channel output result Calling the FC127 An example for calling the FC127 is given in the following in OB1 Before calling the function block the range limits and the setpoint must be reassigned to memory double words This is necessary to enable using variable values Normally upper limit and lower limit are fixed values the setpoint is variable This can be achieved by setting the upper limit and lower limit parameters in the declaration section of the FC127 to gt REAL To enhance flexibility in a test environment this variant has been omitted C7 623 C
177. is also contained in the SZL ID Figure B 2 shows the structure of the SZL ID for the CPUs Bit 151418121110 98 76543210 lolofofol TTT ITT itt Se aa Identification number sublist ID ID forthe sublist excerpt Figure B 2 Structure of the SZL ID of the Sublist C7 623 C7 624 Control Systems C79000 G7076 C624 01 B 3 System Status List in the C7 CPU ID for the Sublist You use the ID for the sublist excerpt to select the extent of the sublist to be Excerpt output e On The complete sublist is output e lytoEg A special sublist is output e Fy only header information is output Index You must assign an index if you want to read out only one specific record from the sublist Length of the This data word shows how much information in bytes a record of the sublist Subsequent contains Records Number of This data word shows how many records the transferred sublist contains Records Table of Sublists Table B 1 below shows the individual sublists of the system status list with the entries relevant for the individual C7 CPUs Table B 1 Sublists of the System Status list of the C7 CPU SZL_ID Sublist Index Record Contents ID of the Sublist Excerpt Individual Records of the Sublist C7 CPU identification CPU type and version number OOlly All records of the sublist Ollly One record of the sublist C7 CPU features 0012H All records of the sublist 01124 Only those records of a group of
178. itioned on the first field No input or updating can be commenced Delete the current line If the cursor is positioned in a value field not BIN and there is at least one character the character at the cursor position is deleted After editing the address list the values in the C7 CPU must be updated This does not happen directly after confirmation of an individual value First when you press the ENTER key after confirmation of the last entry will the new values be transferred to the C7 CPU During the update a flashing asterisc appears in the top right hand corner of the display If the asterisc does not flash then no logical connection to the C7 CPU has been established During the update no inputs can be entered The updating process can be broken with ESC C7 623 C7 624 Control Systems C79000 G7076 C624 01 Extended O I Functions In this Section In this section you will discover what possibilities you have to adjust the C7 OP so that the C7 CPU process can trigger situation dependent reactions of the C7 OP Overview of Section Process dependent Operator Guidance BA Self defined Screen Hierarchy a Controlling the C7 OP from the C7 CPU C7 623 C7 624 Control Systems C79000 G7076 C624 01 8 1 Extended O I Functions 8 1 Process Dependent Operator Guidance Overview Branching by Means of Softkeys and Function Keys 8 2 Different action is normally required or allowed in different operating
179. k Trg Drazena Petrovica 3 Cibona 33 88 95 32 66 95 a 00385 41 Fax 0 03 85 41 Luxemburg 1017 Luxemburg Hamm Siemens S A AUT Hr Nockels 20 Rue des Peupliers B P 1701 B 003 52 4 38 43 4 21 Fax 0 03 52 4 38 43 4 15 Niederlande 2595 AL Den Haa Postfach 83 T 0043 g 25 01 37 88 Fax 00 43 1 25 01 39 40 Polen 40 931 Katowice Siemens Sp z 0 0 Niederlassung Katowice Hr Krzak UI Kosciuszki 30 T 0048 3 157 32 66 Fax 00 48 3 157 30 75 60 815 Poznan l Siemens Sp z 0 0 Niederlassung Poznan Hr Weiss Ul Gajowa 6 47 08 86 T 00 48 a Fax 00 48 61 47 08 89 03 821 Warszawa l Siemens Sp z 0 0 Hr Cieslak UI Zupnicza 11 T 0048 3 6 70 91 47 Fax 00 48 2 6 70 91 49 53 332 Wroclaw Siemens Sp z 0 0 Niederlassung Wroclaw Hr Wojniak Siemens Nederland N V IPS APS UI Powstanc w Slaskich 95 Hr Penris Prinses Beatrixlaan 26 0048 3 33 32 74 0031 70 l 333 3406 Fax 00 31 70 Norwegen 5033 Fyllingsdalen Siemens A S Bergen Hr Troan Bratsbergveien 5 Postboks 36 60 17 67 41 T 0047 iP Fax 00 47 55 16 44 70 0518 Oslo 5 Siemens A S AUT Produkter Hr Eggen Ostre Aker vei 90 Postboks 10 Veitvet T 0047 53 63 34 09 Fax 00 47 22 63 33 90 7004 Trondheim Siemens A S Trondheim Hr Thorsen Spelaugen 22 T 0047 3 95 96 69 Fax 00 47 73 95 95 04 A 60 59 97 Fax 00 48 71 60 55 88 Portugal 2700 Amadora Siemens S A
180. ks Maximum of 4096 retentive data bytes Maximum total of all 4544 bytes retentive data areas Clock memory Memory that can be used in the user program to obtain a clock beat Number 8 1 memory byte freely selectable address of a memory byte Local data Total 1536 bytes 256 bytes for each priority class Process image area From 0 to 127 Digital inputs from E 0 0 to E 127 7 Digital outputs from A 0 0 to A 127 7 Nesting depth 8 for each priority class 4 additional within an error OB C7 623 C7 624 Control Systems 3 4 C79000 G7076 C624 01 Control with the C7 CPU Table 3 1 Performance Characteristics of the C7 CPU Performance C7 CPU Characteristic Blocks OBs FBs FCs DBs SDBs 9 SFCs 37 SFBs C7 623 C7 624 Control Systems C79000 G7076 C624 01 3 5 Control with the C7 CPU 3 4 C7 CPU Blocks Overview Table 3 2 lists all blocks that the C7 CPU can process Table 3 2 Overview C7 CPU Blocks a ee ee at the end of this table ee fem mee ee O S e a ee BE eye SFC 34 A complete list of all SFCs in the C7 CPU can be found in Appendix A A detailed description can be found in the STEP 7 documentation Organization Block The operating system of the C7 CPU is based on event controlled user OB program processing The following table shows which organization blocks OBs are automatically called up by the operating system for which event Description of the A detailed description of the vari
181. l places and too many have been entered they are ignored if too few have been entered the field is padded with zeroes C7 623 C7 624 Control Systems C79000 G7076 C624 01 Operating the C7 General Alphanumeric Alphanumeric inputs contain a mix of digits and letters Values Ce For the numerical part of the input please proceed as described in Numerical values Entering If you wish to enter a letter at the current cursor position you must enable Alphanumeric the corresponding alphanumeric character set Values Entering Characters A F Characters A to F can be entered directly with the numeric keys 1 to 6 in combination with the shift key To enter an alphanumeric string for instance 7FEB53 follow the procedure outlined below E Enter the number 7 as normal via the Digit appears in the input field gt fee keyboard Press Pe Sr B key The activated shift key is indi cated by the illuminated LED Enter the letters F on the 6 key E on The letters appear in the input the 5 key and B on the 2 key field Press Pe ir q key again The Shift key is deactivated The LED goes out Enter the rest of the digits 5 and 3 using Your input is accepted and the the keyboard and confirm your entry displayed entry is reset with gt ENTER Entering the Complete Character Set of the C7 If the characters available on the keypad are not sufficient for the alphanumeric input you can select additional
182. le the description of a machine state normally requires more related data than can be represented in one display section In this manner data on operating temperature liquid level rotational speed and run time can illustrate the current machine state The C7 623 and C7 624 have line oriented displays A screen is thus compiled from text elements that can be combined with static text and current status values C7 623 C7 624 Control Systems C79000 G7076 C624 01 1 3 Introduction Event Messages Recipes Fault Messages Information Texts Logging 1 4 Event messages are information and operating tips regarding the current machine or process states during normal production operations Event messages can contain process values The representation of the process values can be either numeric for example motor running at 3000 revolutions per second or symbolic When a product is made up of various ingredients in certain ratios this information is stored in a so called recipe Take orange juice for example Its production and bottling requires that orange concentrate and water be mixed in a certain ratio These values are stored as variables in a recipe Each recipe can be made up of several data records containing different val ues for the recipe The data can be edited in the C7 OP transferred to the C7 CPU and read out from the C7 CPU In the C7 OP the recipes are combined by recipe number and title in a
183. letters and special characters from the extended character set The extended character set is available for all fields with the format STRING To enter the string 18 OCT 61 for example please proceed as follows You must first configure the input field with the variables As an example you can select a string with the format CHR Variable IB Enter the digits 1 and 8 as normal using the numeric keys on the system keyboard Press the O key The extended character set is SHIFT l l l available in the current input field C7 623 C7 624 Control Systems C79000 G7076 C624 01 6 17 Operating the C7 General Symbolic Values 6 18 Scroll with the A or V keys throug the valid extended character set Variable 190 4 Select O and using the arrow key move The selected character is accepted one position to the right by moving the cursor key 5 Select C and using the arrow key move ditto one position to the right Select T and using the arrow key move nn one position to the right Press He Sur B key a Shift key is deactivated The LED goes out Enter the remaining digits 6 and as before using keys 6 and 1 with de activated Shift Variable 180cT6 fl Then confirm with The input is accepted and ali the input display is reset If a field has to be filled by entering symbolic values take the value from a list of options
184. lity Standard Screens Control Jobs System Messages 401 Entred value does not match display format Be Operating error in STATUS VAR or MODIFY VAR screen after pressing INS when 10th variable line already assigned fn imesincis O w o o o o 409 Lower limit for input ignored Enter a value greater than or equal to Var 410 Upper limit for input ignored Enter a value smaller than or equal to Var 411 Selection of special screens is not permissible in this case If necessary modify the configured interface parameters 442 Thie message indicates a data block error The x and y Either correct the block size or the variables identify the cause of the error X variable and block number or send the correct data the number of the affected receive block y variable block x variable O Invalid block size entered in receive block no y 1 Invalid block number entered in receive block no y C7 623 C7 624 Control Systems C 22 C79000 G7076 C624 01 C7 OP Functionality Standard Screens Control Jobs System Messages Download to C7 CPU not possible at pressend C7 CPU overloaded Standard FB not called for more than 1 5 s Check user program 506 Too many message blocks having the same block Error occurs when C7 CPU sends too number in transit overloading many jobs within a certain time with Fetch message bit area 509 Firmware version different from standard FB version Load new standard FB onto C7 CPU
185. lock Memory Table 3 6 Parameter Block Clock Memory Parameter Explanation Value Range Default Setting C7 CPU Clock memory For clock memory yes a memory Yes No No byte must be defined Memory byte Memory byte that should be used for the From 0 to 255 clock memory byte C7 623 C7 624 Control Systems 3 10 C79000 G7076 C624 01 Control with the C7 CPU 3 5 2 Parameter Block Start Up Characteristics Parameter Block The Table 3 7 lists the parameters of the parameter block Start up Start Up characteristics Characteristics Table 3 7 Parameter Block Start up Characteristics Explanation Value Range Default Setting Self test after POWER ON For Self test at cold restart yes the C7 CPU Yes no Yes and erase tests its internal RAM after every POWER ON Start up Only Restart can be set for the C7 CPU Restart Restart e Manual Restart e Automatic Module time limit Maximum time for the distribution of the pa from 1 to 10 000 rameters to the modules within the module mounting sub rack e Parameter assignment during start up in ms Module time limit Maximum time for the ready message of all mod from 1 to 65 000 Ready message after ules after POWER ON POWER ON in ms If the modules do not transmit a ready message to the C7 CPU within this time then the C7 CPU reverts to STOP Note You should assign the highest values to the parameters for the Mod
186. m inform the C7 OP through the data mailbox which data record it should transfer To do this enter the identifications of the recipe in the data mailbox Set bit 4 to 1 request data through data mailbox in the S7 program 5 The C7 OP reads the data mailbox C7 O P reads the data mailbox B e E C7 OP resets bit 4 and transfers the data record or the variable as de scribed for case 1 from step 2 onwards C7 623 C7 624 Control Systems 9 22 C79000 G7076 C624 01 Data Areas for Communication between the C7 OP and the C7 CPU 9 8 Notes on Optimization Decisive Factors The construction of the user data area described ih section 9 3 and the configured polling times in the area pointers are significant factors for the actual reachable update times The update time is the polling time plus the transfer time plus the processing time To reach an optimal update time the following points should be observed during the configuration e Configure the individual data areas as large as necessary but as small as possible e Define the data areas which belong together contiguously The actual update time improves if you configure one large area as opposed to several small areas e The total performance is unnecessarily compromised if the polling times are too small Set the polling time according to the changing speed of the process values The change in temperature of an oven for example is significantly more sluggis
187. m from normal message text Unacknowledged alarm messages flash permanently Messages may contain static text and variable fields The variable fields display that is current actual values of the C7 CPU in numerical or symbolic form In addition the date and time can also be output in messages Output event and alarm messages are stored in dedicated message buffers The messages available in the buffers can be displayed on the screen and logged with a printer Message Bit If there is a condition present in the current process for a message to be Procedure for issued that is a setpoint has been reached the application program sets a bit Event and Alarm in the data area for event and alarm messages The C7 reads the data area Messages after a set polling time In this way a message is detected as having arrived The C7 resets the bit when the condition for issuing the message no longer exists The message is then regarded as having departed Further information about the data area can be found in section 9 3 C7 623 C7 624 Control Systems C79000 G7076 C624 01 1 3 Standard O I Functions Alarm and Event Message buffers Size of Residual Buffer Standby Message 7 4 Alarm and event messages are written to the C7 s alarm and event message buffers respectively upon arrival The following events are entered into the buffer in chronological order e Time of the event e Arrival and departure of the event e Ackno
188. matic Cancel field inputs 6 5 Changing operating level Channel Specific diagnostics byte Character delete Character height on display Character Set extended Characters per line Characters A F entering 6 17 Chronologically message print Clock C7 CPU correction faktor Index 2 Clock memory parameter block 3 10 Clocks frequencies period times Communication cycle loading 3 18 Communications error Components of screen entry 7 21 Compulsory print Configurable languages C 3 Configuration not loaded 2 3 reload Configuration error Configuration loaded start up 2 3 Configuring error K Contrast C 2 Contrast adjustment direct 6 25 standard screen 6 25 Control and checkback bits 9 14 Control jobs SIMATIC S7 Control jobs and their parameters Conversion analog output Conversion time analog input Correction faktor Count direction setting Count input parameter Count inputs parameter block Counter software special input start stop threshold frequency Coupling identifier CPU values update Current measurement range analog I O analog output Customer specific module 4 3 Cycle behavior parameter block 3 18 Cycle loading due to self test to communication C7 623 C7 624 Control Systems C79000 G7076 C624 01 Cycle time analog input extension Cycletime maximum 3 18 D Data area
189. meters can result in incorrect behaviour of the I O Table 4 23 lists the layout of the parameter data sets Table 4 23 Table with Data Set Descriptions Parameter Block What Can Be Assigned Meaning of the Respective Bits Value Enable diagnostics AI1 Enable diagnostics AI2 Enable diagnostics AI3 Enable diagnostics AI4 Enable diagnostics AQ1 Enable diagn wirebreak AI1 1 Yes only if measurement range Enable diagn wirebreak AI2 1 Yes only if measurement range Enable diagn wirebreak AI3 1 Yes only if measurement range Enable diagn wirebreak AI4 1 Yes only if measurement range Enable diagnostics alarm for mod O No 1 Yes Use 0 Disable normal DI 1 Alarm DI 2 CI Process alarm O No 1 Yes always with alarm DI selectable if use 2 Edge O Rising edge 1 Falling edge only if not deactivated Direction O0 Forwards 1 Backwards only if CI Use 0 Disable normal DI 1 Alarm DI 2 CI Process alarm O No 1 Yes always with alarm DI selectable if use 2 C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 39 Addressing Parameter Assignment and Function of the C7 Input Output Table 4 23 What Can Be Assigned Meaning of the Respective Bits Value Table with Data Set Descriptions Parameter Block Continued Edge Direction Use Process alarm edge O Rising edge 1 Falling edge only if not deactivated O Forwards 1 Backwards only if CI 0 Disable normal DI 1 Alarm DI
190. mployed C7 modules C7 I O and the customer specific C7 modules always occupy the rack Number 0 C7 Slots The logical slots 2 and 3 are reserved for the C7 CPU and the integrated IM360 The I O incorporated in the C7 occupies the logical slots 4 digital I O and 5 analog I O and universal inputs Slots for Customer The logical slots 6 to 11 can be occupied by a customer specific module Specific Module C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 3 Addressing Parameter Assignment and Function of the C7 Input Output C7 Layout Figure 4 1 shows an example of a C7 with a customer specific module and the connection of an additional S7 300 Slot number IM 361 3 4 5 6 7 Connecting cable 368 Modules Slot number IM 361 3 4 5 6 7 Connecting cable 368 Modules Slot number IM 361 3 4 5 6 7 Connecting cable 368 Customer specific module AE Slot number 2 3 45 Digital address 0 3 assigned 0 1 Analog address 272 287 Figure 4 1 Example of Slots in C7 Additional S7 300 You can connect max three S7 300 racks to a C7 How these are connected Racks is described in the S7 300 Installation and Hard
191. n On the C7 624 four messages are shown for an 8 x 40 display If several messages are present simultaneously the messages are displayed in succession and output according the following priorities 1 System message the most recent if there are more than one Unacknowledged alarm message Event message yet to depart Acknowledged alarm message yet to depart Standby message C7 623 C7 624 Control Systems C79000 G7076 C624 01 1 1 Standard O I Functions Table 7 1 FortsetzungExplanation of Display Sequences Display Sequence Explanation Mixed If there is no system message the alarm and event messages having the highest priority are displayed simultaneously one on top of the other For messages which extend beyond the limit of the display line the full length message text is repeated automatically across the display Exception On the C7 624 two alarm messages and two event messages are shown for an 8 x 40 display If several messages are present simultaneously for the combined output the messages are output according to the following priorities 1 System message the most recent if there is more than Unacknowledged alarm message the second line simul taneously displays the most recent highest priority event message yet to depart 3 Acknowledged alarm message yet to depart the second line simultaneously displays the most recent highest priority event message 4 Standby message C
192. n the standard screen Select the desired recipe from the recipe directory Using the cursor keys select the data record to be deleted from the data record directory Press SHIFT DELETE Delete Press ENTER Do not delete Press ESCAPE Repeat steps 3 and 4 as necessary If only one single data record exists this record cannot be deleted Exit the standard screen with ESCAPE C7 623 C7 624 Control Systems C79000 G7076 C624 01 Standard O I Functions 7 5 STATUS VAR and MOD VAR with the C7 OP Overview The C7 offers the possibility to display and to modify address values This is possible by means of the configuration of special screens similar to the PU functions STATUS VAR and FORCE VAR Thus during on line operation the control addresses of the C7 CPU can be processed directly at the C7 OP STATUS VAR The addresses can be displayed using STATUS VAR FORCE VAR With FORCE VAR the addresses can be displayed and their values modified and transferred back to the C7 CPU The chosen addresses remain in the static RAM and are valid after restarting the C7 Calling up You call the function FORCE VAR via the standard screen ForceVAR After FORCE VAR calling the address list is displayed Depending on the display line length a one or two line address is presented Figure 10 1 shows an example display for the SIMATIC S7 AS address DB 10 ADR DEC 1234 DB ADR HEX DB ADR HEX Sa a CO Update in progress
193. nal procedures C7 623 C7 624 Control Systems 1 28 C79000 G7076 C624 01 Standard O I Functions 7 4 1 Setting Up and Editing Data Records The OP automatically sets up a data record with the number 1 and the name data record for each recipe All values of the data records are preset with 0 You can edit this data record To set up more data records either copy this data record see chapter 7 4 2 or edit the first data record and save it under a different name Editing data Proceed as follows to change existing recipe data record values reeores 1 Select standard screen Records Edit 2 Select the desired recipe in the recipe directory 3 Select the data record to be edited in the data record directory Note You can have the recipe title displayed by paging up in the first entry 4 Position cursor on the value to be changed 5 Enter numeric or symbolic value 6 Confirm the value If you want to change more values position the cur sor in the input field of the next entry and change the value there 7 To conclude editing data records after the last modified value has been accepted press ESCAPE You will then be asked whether you want to save the data record 8 Save Position cursor on the Yes field and confirm with ENTER Do not save Press ESCAPE Since the data record number already exists you will then be asked whether you want to overwrite the data record 9 Overwrite Press ENTER Do not ove
194. ncl correction calculation Measurement gt overflow range The error is identified after the comparison of the mea sured value incl correction calculation Measurement gt neg overflow range That is lt OmA for 4 20mA The error is identified after checking the parameter after reading and processing the parameter area Diagnostics Messages and Reaction Possibilities Continued Reaction of the BG An error counter will be incremented If the error counter reaches a fixed value of 3 then the error wire break is reported The bit is set and reset again when the measurement decreases The bit is set and reset again when the measurement becomes valid The measurement 7FFFy is set in the incorrectly config ured measurement channel and the corresponding diag nostics bit set or for an out put channel 0 V 0 mA is output and the corresponding bit set new line If the module had not been assigned a parameter and the parameter is corrected Please check then the bit incorrect param eter is reset and if diagnos tics alarm yes a diagnos tics alarm reported to the C7 CPU Possible Elimination Check the connection of the appropriate measurement channel Check the connection of the appropriate input channel or transducer Check the connection of the appropriate input channel or transducer Assign correct parameters C7 623 C7 624 Control Systems C79000 G7076 C624
195. nd S7 Reference E Siemens Worldwide 0020000000es GIOSSAIY tastcrcnsesacstsaceueaneueseetaaceses INGO oie obese ee eee ee ees vi C7 623 C7 624 Control Systems C79000 G7076 C624 01 Introduction In this Chapter This chapter will inform you about the prerequisites for programming the C7 and its functionality as an operator interface device Note The C7 consists of two independent units each with its own processor C7 CPU and C7 OP Where necessary these components are explicitly named in Section 2 of the manual What Do you You require the following equipment and tools Require to Operate the C7 e A programming device or PC with MPI interface and a programming device cable e STEP 7 appplications from version 2 including documentation e The ProTool or ProTool Lite configuring tool from version 2 incl documentation e C7 connector set for I O and power supply Operator Control and Monitoring with C7 C7 623 C7 624 Control Systems C79000 G7076 C624 01 1 1 Introduction 1 1 Control with the C7 Overview C7 CPU Program memory Processor Programming Languages Program with What With Which Devices 1 2 The user program that controls the process that is to be visualized by the operator interface part of the C7 runs in the C7 CPU The operation of the C7 CPU is determined by the following functional elements It contains the user program The pr
196. ndard O I Functions Paging through Messages in the Message Level Viewing Event and Alarm Messages 7 10 If there are neither system messages nor unacknowledged alarm messages you can page through the messages that have not yet departed at message level To page through the messages use the following cursor keys Table 7 3 Keys for Paging through Messages Next alarm message Previous alarm message Next event message Previous event message The current message will be displayed again if you press ESC or there is no operator input for one minute All configured event and alarm message text can be shown on the display irrespective of the current event message buffer or alarm message buffer contents To do this please proceed as follows Select the standard screen Alarms Text to display alarm messages or Events Text to display event messages By using the cursor keys you can now scroll through the list of configured message texts either upwards or downwards C7 623 C7 624 Control Systems C79000 G7076 C624 01 Standard O I Functions 7 1 5 Viewing Message Buffers Overview Messages displayed on the C7 are written to the corresponding message buffer The message buffers can be called in order to view message history by means of standard screens The times of occurrence acknowledgment and departure are displayed in chronological order for all messages Viewing the alarm Choose the standard screen
197. ng the C7 CPU Overview The user program that controls the process to be visualized on the C7 OP runs on the C7 CPU Required Tools You require the following tools to develop the user program e Programming device PC plus cable e STEP 7 with the appropriate manuals e C7 Programming Two programming languages are currently relevant to the C7 CPU Languages guag e STL The statement list consists of several statements Each statement in your program contains operations which represent a function of the C7 CPU as a mnemonic e LAD A ladder diagram is a graphical programming language which resembles an electrical circuit diagram C7 623 C7 624 Control Systems C79000 G7076 C624 01 3 3 Control with the C7 CPU 3 3 Performance Characteristics of the C7 CPU Introduction Table 3 1 lists the most significant performance characteristics of the C7 CPU Table 3 1 Performance Characteristics of the C7 CPU Performance C7 CPU Characteristic Load memory e Integrated RAM 40 Kbytes e Integrated flash memory 40 Kbytes Approx 0 3 ms per 1000 statements Digital inputs outputs 16 16 Bit memories From M 0 0 to 255 7 Selectable retentivity Preset 16 retentive memory bytes from 0 to 15 Counters From C 0 to C 63 Selectable retentivity Preset 8 retentive counters from 0 to 7 Times From T 0 to T 127 Selectable retentivity Preset no retentive times Retentive data area 0 Max eight data areas from one or more data bloc
198. ng the You leave the message level by pressing oo Message Level Saai Event and Alarm Event and alarm messages are initiated by the C7 CPU They are configured Messages and they contain process related information Alarm messages have to be acknowledged System Messages System messages are initiated by the C7 OP They are not configured They provide information on operating states of the C7 OP or faults and breakdowns in communication C7 623 C7 624 Control Systems 1 2 C79000 G7076 C624 01 Standard O I Functions 7 1 1 Event and Alarm Messages Overview The process states indicated by event or alarm messages are defined during configuration e Messages concerning malfunctions related to processes or states that is motor temperature too high or valve will not open should be categorized as alarm messages e Messages that provide information concerning regular processes or states such as temperature reached or motor running should be categorized as event messages In addition to status messages information relating to an operation can also be configured as event or alarm messages If that is a machine operator wants to start the bottling process but has forgotten to open the water intake valve on the mixer a message such as open water intake valve Is displayed as a prompt to rectify the oversight Event and alarm messages can be configured so that any of their text components flash to distinguish the
199. ns data describing the current status of an C7 CPU You can use it to gain an overview at any time of the following e The current parameterization of the CPU and the parameterizable signal modules e The current statuses and sequences in the CPU and the parameterizable signal modules See the STEP 7 Standard and System Functions Reference Manual for a detailed description of the structure of the system status list and all possible entries You can use SFC 51 RDSYSST from the user program to read out the entries in the system status list see the Reference Manual 235 The system status list is divided into sublists This makes it possible to target specific information in the system status list Each sublist contains e Header information of 4 data words e A specific number of records containing the event information C7 623 C7 624 Control Systems C79000 G7076 C624 01 System Status List in the C7 CPU Header The header information of a sublist is 4 data words long Figure B 1 shows Information the contents of the header information of a sublist SZL ID Sublist ID Index Specification of an object type object number Length of a record contained in the sublist Number of records in the sublist Figure B 1 Header Information of a Sublist of the system status list SZL ID Each sublist has an SZL ID In addition it is possible to read only one excerpt from a sublist The ID of this excerpt from the sublist
200. nt you can set up and edit data records You can also transfer data records from the C7 OP to the C7 CPU and back e System settings System At this point you can modify settings in on line mode This includes for example printer parameters interface parameters operating mode and language changing C7 623 C7 624 Control Systems C79000 G7076 C624 01 Operating the C7 General e Status variable StatVar At this point the PG function STATUS VAR is called you can use it to display C7 CPU addresses e Modify variable At this point the PG function MODIFY VAR is called you can use it to display and modify C7 CPU addresses e Edit password password At this point the super user assigns passwords for the different password levels Furthermore login and logout procedures are included here C7 623 C7 624 Control Systems C79000 G7076 C624 01 6 9 Operating the C7 General Standard Screen Hierarchy 6 10 Figure 6 4 shows an overview of the screen hierarchy of standard screens You will find detailed information on functions and handling standard screens in the relevant chapters of this manual Basic Screen Figure 6 4 Event Messages Event mess View Print Number Delete Overflow Text Alarm Messages Alarm mess View Print Number Delete Overflow Text Screens Screens E
201. nts in the case of a complete restart or power off Field provided for assigning values to a parameter values can be selected from a list of permissible values System Function Block System Function Signal modules C7 I O are the interface between the process and the C7 Signal modules comprise digital input and output modules and analog input and output modules C7 623 C7 624 Control Systems C79000 G7076 C624 01 Softkeys START UP Startup Test STEP 7 STEP 7 Tool Substitute Value System Diagnosis System Function System Function Block System Memory System Message Glossary Keys with variable assignments depending on the current display entry The START UP mode is active during the transition from the STOP to the RUN state Verification of the CPU status and the memory status each time the C7 is powered up Programming language for generating user programs for SIMATIC S7 programmable controllers A STEP 7 tool is an application of gt STEP 7 which is tailored to a specific task Substitute values are values which are output to the process in the case of faulty signal output modules or which are used in the user program instead of a process variable in the case of faulty signal input modules The substitute values can be specified in advance by the user for example maintain old value System diagnosis comprises the recognition evaluation and signalling of errors which occ
202. ocess alarm after reaching the comparison value when connting up or a zero transition when counting down If frequency counter selected then select the gate time for the frequency counting No further parameters for period time counter ee ee Digital Inputs If the universal inputs are deactivated in the parameter block default setting then the inputs react as digital inputs However no automatically updated process image will be made available to the application program for these inputs The current saa of the input can only be read by means of a direct peripheral access See Table 4 14 of 4 15 for address C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 25 Addressing Parameter Assignment and Function of the C7 Input Output 4 4 3 Alarm Inputs Introduction If universal inputs are used as alarm inputs then a process alarm will be generated every time the corresponding assigned edge at one of the inputs Assignable Events The parameter assignment can be performed with STEP 7 Function Hardware configuration Process Alarm OB If a process alarm is sent from the I O to the C7 CPU then the process alarm OB OB 40 will be called by the C7 CPU The event that called the OB 40 is stored in the start information declaration section of the OB 40 You must evaluate the additional information C1 to C3 in the start information Declaration The entries in the declaration section of OB 40 can be found in Table 4 19 Section
203. ocessor executes the program cyclically e At the beginning of the cycle the processor reads the signal states of all inputs and generates the process image input table PII e The program is processed step by step taking into account all counter and timer values and bit memories e The processor stores the signal states resulting from program execution in the process image output table PIQ The states are then transferred to the outputs The C7 CPU is independent of the C7 CPU It has a separate MPI address via which it is connected to the C7 OP At present the C7 CPU generally supports two programming languages e STL The statement list consists of a series of statements Each statement in your program contains instructions which mnemonically represent a function of the C7 CPU e LAD A ladder diagram is a graphical programming language that resembles electrical circuit diagrams The tool with which you prepare user programs is STEP 7 You can find the operation notes necessary for programming in the User Manual 231 You can use the manuals listed in the foreword for the individual languages The STEP 7 runs on a programming device or PC You can operate these devices independently from the C7 You must connect the programming device PC to the C7 via the MPI only when you wish to load your user program into the C7 C7 623 C7 624 Control Systems C79000 G7076 C624 01 Introduction 1 2 Operator Control and Monitoring wit
204. of OB 40 The bytes that are relevant to the user are hatched in the table Table 4 19 Declaration section of OB 40 o oes e rename Ce om Ao inomason p Time stamp of event Additional The start address of the C7 peripheral module is contained in the additional Information 21 information Z1 byte 6 7 Address 272 or 01104 C7 623 C7 624 Control Systems 4 26 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output Additional The serial number of the universal inputs that triggered the process alarm can Information Z2 be found in byte 8 of the additional information Z2 Byte 9 is irrelevant You can find the additional information broken down into bits in Figure 4 7 Byte 8 765483210 ololololi iiS 111 11 1 when universal input 1 has triggered process alarm 1 when universal input 2 has triggered process alarm 1 when universal input 3 has triggered process alarm 1 when universal input 4 has triggered process alarm Figure 4 7 Addidtional Information Z2 Additional Additional information Z3 is not used and is set to 01104 Information Z3 Evaluation in The evaluation of process alarm in the application program is described in Application the Manual 120 Program C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 2 Addressing Parameter Assignment and Function of the C7 Input Output 4 4 4 Counters Counter Actual Value of Counter Forward Co
205. of their urgency This can be done automatically by the C7 CPU or by the operator by means of the acknowledge key The C7 displays unacknowledged messages in flashing mode The ACK LED assigned to the acknowledge key also lights up e If several alarm messages are waiting to be displayed after one has been acknowledged the next one is shown on the display which similarly has to be acknowledged e Ifno more alarm messages are waiting to be displayed the C7 reverts to the operating level from which it originally branched out of During configuration you can combine several alarm messages to form an acknowledgement group In this way you can acknowledge all other alarm messages consequential faults in that acknowledgement group by acknowledging the first alarm message that is the cause of the fault without all of them having to be displayed one after the other You can configure up to four acknowledgement groups If alarm messages are not assigned to an acknowledgement group only the one that happens to be on the display is acknowledged if more are waiting The possibility exists to suppress the display of frequently incoming alarm messages for the duration which the C7 takes to boot up as a result of a warm or cold restart Password level 8 is the minimum level required to suppress the display Zz gt F To suppress an alarm message press the p and keys simultaneously This message will not be displayed until the ne
206. of visualizing data from the C7 CPU Management You configure the C7 OP using a computer PC programing device with the configuration software ProTool or ProTool Lite After completion of the configuration it is transferred to the C7 OP To do this you must connect the computer to the C7 via an MPI interface The project control phase commences once the configuration has been loaded in the C7 OP The C7 OP now reacts to the process signals from the C7 CPU or operator actions in accordance with the configured instructions Information regarding the configuration of the C7 OP can be found in the ProTool or ProTool Lite user manual C7 623 C7 624 Control Systems C79000 G7076 C624 01 1 5 Introduction 1 3 C7 Overview The SIMATIC C7 623 C7 624 control systems consist of several components that are optimally tuned to one another e A CPU of the SIMATIC S7 300 PLC range C7 CPU e A line oriented COROS OP C7 OP with printer port e Integral digital and analog I O C7 I O e An integrated IM 360 module C7 IM for expanding the C7 623 or C7 624 with S7 300 modules e An interface for communicating with programming devices PCs and further S7 CPUs C7 control systems and OPs C7 C7 PLC CPU memory OP memory C7OP C7CPU C7 OP C7 l re VO aa i Printer interface C7 IM MPI interf
207. og inputs Analog output Universal inputs C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 9 Addressing Parameter Assignment and Function of the C7 Input Output Analog Output Table 4 4 provides an overview of the analog output parameters Parameters Table 4 4 Analog Output Parameters _ Value Range Preset Value Basic setting e Enable diagnostic alarm No Diagnostics e Enable Yes No Configuration parameter error Substitute value switched on Substitute value e Retain last value Yes No e Value 94004 6C00H Output range e Type of output Deactivated Voltage Voltage Current Output range 10V 20mA 4 20mA Parameter Table 4 5 shows which parameters e naracieriStics ol e Are static or dynamic Analog Outputs 7 e Can be set Table 4 5 Parameter Characteristics of Analog Outputs Static Dynamic Effective Range Enable diagnostic alarm Analog inputs Analog output Universal inputs Substitute value e Maintain last value Dynamic e Value Dynamic C7 623 C7 624 Control Systems 4 10 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output 4 3 3 Representation of Analog Values Overview The representation of analog values or an analog value in binary form is the same for all C7 analog inputs and analog outputs This chapter describes the analog values for all measurement ranges or output ranges that can be used with the C7 analog I O
208. ommunications ability of an erased C7 CPU to the external world must be preserved even after a memory reset MPI Addresses C7 The C7 occupies two MPI addresses e One for the C7 CPU default address 2 e One for C7 OP default address 1 Parameter Block Table 3 15 lists the parameters of the parameter block MPI addresses MPI Addresses Table 3 15 Parameter Block MPI Addresses Parameter Explanation Value Range Default ion Highest MPI address The definition of the highest MPI address in the network is necessary since e Every network station is addressable e The communications process operates effectively Note issue only as many MPI addresses as are necessary You will then reduce the communi cations times The highest MPI address must be the same for all network stations C7 CPU MPI address Each station that is networked via the MPI must From 2 to 126 possess an address The specified address may only be allocated once in the network The C7 OP possesses its own MPI address default 1 Note The MPI is the only communications interface of the C7 Parameters should only be modified with utmost care C7 623 C7 624 Control Systems C79000 G7076 C624 01 3 19 Control with the C7 CPU 3 6 Calculation of the Scan Cycle Time and Response Time of the C7 CPU In this Section Definition Cycle Time Elements of the Cycle Time Definition Response Time 3 20 This sec
209. on of a control job Procedure 1 You must configure the interface module which contains the interface area in the C7 CPU example DB52 2 You enter the interface module 52 into the area pointer during the configuration The interface module is thus made known to the C7 OP 3 The job is entered in the interface module via the C7 CPU program see fig 9 6 4 The C7 OP reads the interface module and carries out the job Program for Screen Selection AUF DB 52 Call interface module L screen no Enter first parameter screen no into TDBW 6 job area of the interface module L Input number Enter 2nd parameter into TDBW 8 job area of the interface module L Field no Enter 3rd parameter field no into TDBW 10 job area of the interface module L 51 Enter the job no into the job area of the interface module and activate the job Figure 9 6 Example for a C7 CPU Program C7 623 C7 624 Control Systems 9 18 C79000 G7076 C624 01 9 7 Recipes Definition Transferring data records Synchronization Data Areas for Communication between the C7 OP and the C7 CPU A recipe is a group of variables for a fixed data structure You set this struc ture in your configuration and assign data to it on the C7 OP You cannot modify the structure on the C7 OP later Since the data structure can be assigned several times we refer to data re cords These data records are stored created loaded
210. on the C7 CPU 2 Use STEP 7 to erase the load memory of the CP CPU remove delete files The function Direct PLC delete may not be used in this case since a memory a reset must be carried out 3 Activate the STEP 7 function copy RAM to ROM In this way the empty load memory will be loaded into the flash memory Afterwards this is also empty C7 623 C7 624 Control Systems 3 36 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output In this Chapter 4 4 1 Slot Oriented Address Assignment for Signal Modules rement Range of the Analog Inputs range of the Analog Outputs 2 of Analog Outputs 2 Period Time Measurement 4 5 Data Set Description for Parameter Block of C7 4 Analog I O and Universal Inputs C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 1 Addressing Parameter Assignment and Function of the C7 Input Output 4 6 Examples for Programming the Analog I O and the Universal Inputs Block for Scaling Analog Output Values Block for Scaling Analog Input Values Example for Programming the Counters C7 623 C7 624 Control Systems 4 2 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output 4 1 Slot Oriented Address Assignment for Signal Modules Overview The relationship between card slot and address assignment is described below You require this information to determine the start addresses of the e
211. on value value PQW274 PQW277 PQW280 Set value Bit 1 of PQB276 PQB279 PQB282 rising edge O I New start comparison value will be activated with the next rising edge at the count input If forward counting running new compari son value will be accepted If backward counting running new start value will be accepted current count value will be corrected by the difference C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 29 Addressing Parameter Assignment and Function of the C7 Input Output Table 4 20 Control of Counters by the Application Program Continued Procedure Initialization of the counter At zero transition backward counting or compari start of a new counting pro son cess always occurs value reached exceeded forward counting After setting the enable bit in the data area Bit 0 of PQB276 PQB279 PQB282 rising edge O gt 1 if the bit set new start comparison value is set simultaneously Bit 1 of PQB276 PQB279 PQB282 Generation of process alarm Precondition is process alarm yes of the and resetting of counter counter has been assigned When counting direction is forwards if count value comparison value When counting direction is backwards if count value zero C7 623 C7 624 Control Systems 4 30 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output 4 4 5 Counter Alarms Intro
212. one variable Add to configuration and repeat 1 4 Information text not available download 2 Information text identifier not available for messages 12 Process screen does not contain entries 3 6 7 Internal errors 8 11 13 C7 623 C7 624 Control Systems C79000 G7076 C624 01 C 25 C7 OP Functionality Standard Screens Control Jobs System Messages Message with one variable Add to configuration and repeat 18 Screen title not configured download Qto 8 Internal errors 34 Configuration error in x Add to or modify configuration and X variable repeat download 1 The screen or recipe entry is only set up symbolically The field is only set up symbolically The message entry or information text is not configured for the current language Internal errors The screen or recipe title is not configured The process connection is only set up symbolically The information text is only set up symbolically The symbolic field is only set up symbolically Fewer than 2 field texts are configured for a symbolic field The current field text is not configured for a symbolic field Invalid data format for a symbolic field only KF and KY are permitted Recipe setpoint configured with Char data format Invalid data format for setpoint field Data format for the scheduler is too short Invalid data format for actual control value For fixed cross jump to menu menu item does not exist For fixed cross jump to screen entry or field
213. oo Siemens Osakeyhtioe OEM AUT 1 Hr Saarelainen Majurinkatu P O B 60 T 003 58 O 51 05 36 70 Fax 0 03 58 0 51 05 36 56 Frankreich 69641 Caluire et Cuire Lyon Siemens S A AUT 1 Leitstelle 9 11 Chemin des Petites Brosses BP 39 00 33 78 98 60 08 Fax 00 33 78 98 60 18 59812 Lesquin Cedex Lille Siemens S A AUT 1 Leitstelle 78 Rue de Gustave Delroy BP 239 00 33 20 95 71 91 Fax 00 33 20 95 71 86 33694 Merignac Ge deaux Siemens S A AUT 1 Leitstelle Parc Cadera Sud 36 Avenue Ariane BP 351 B 00 33 56 13 32 66 Fax 00 33 56 55 99 59 44300 Nantes Siemens S A AUT 1 Leitstelle Zac du Perray 9 Rue du Petit Chatelier 00 33 40 18 68 30 Fax 00 33 40 93 04 83 93527 Saint Denis Cedex 2 Paris Siemens S A AUT 1 Hr Granger 39 47 Bd Ornano T 0033 M 49 22 33 18 Fax 00 33 1 49 22 32 05 67016 Strasbourg Cedex Siemens S A AUT 1 Leistelle 2 Rue du Rhin Napoleon BP 48 00 33 88 45 98 22 Fax 00 33 88 60 08 40 31106 Toulouse Siemens S A AUT 1 Hr Huguet ZAC de Basso Cambo Avenue du Mirail BP 1304 00 33 62 11 20 15 Fax 00 33 61 43 02 20 Griechenland 15110 Amaroussio Athen Siemens A E HB 3 AUT Hr Antoniou Paradissou amp Artemidos P O B 6 10 11 0030 th 68 64 5 15 Fax 00 30 1 68 64 5 56 54110 Thessaloniki Siemens A E VB 3 Hr Passalidis AUT Georgikis Scholis 89 P O B 10290 Fax 00 30 31 47 92 65 Grossbritannien
214. ous OB and their user can be found in the OB manual 280 Size of an OB An OB can have a maximum size of 8 Kbytes OB for Scan Cycle Table 3 3 lists the OBs which determine the behavior of the C7 CPU during and Start Up the scan cycle and start up Table 3 3 List of OB for Scan Cycle and Start up Scan Cycle and Start up Activated OB Possible Start Preset Priority of Events the OB Start up STOP RUN transition OB 100 1381 13824 Ls C7 623 C7 624 Control Systems 3 6 C79000 G7076 C624 01 Control with the C7 CPU OB for Internal and The Table 3 4 lists OBs which determine the behavior of the C7 CPU after External Alarms alarm events The priority of the OB cannot be changed Table 3 4 List with C7 CPU Alarm Events Alarms Internal and External Activated OB Possible Start Priority of the Priority Events OB Delay alarm OB 20 1121H 3 Range 1 ms to 60000 ms adjustable in 1 ms increments Watchdog alarm OB 35 1136H 12 Range 1 ms to 60000 ms adjustable in 1 ms increments Behavior of the The C7 CPU reverts to STOP if a OOPER e Time of day alarm Absent OB y e Delay alarm e Process alarm e Diagnostics alarm occurs but the corresponding OB has not been programmed The C7 CPU does not revert to STOP if a watchdog alarm occurs and OB 35 has not been programmed OB for Error The Table 3 5 lists the OBs which determine the behavior of C7 CPU in an Reactions error situation The C7 CPU reverts to STOP 1f an error
215. parameters to the universal inputs Digital input Alarm input Counter Frequency counter Period time counter Universal Input The addresses for the universal inputs are default addresses which cannot be Addresses changed According to the application of the universal inputs the results occupy differing addresses For the address allocation differentiation is made 1n 4 20 Input range PIW280 PIB287 for count values or signal state of the digital inputs Output control range POW 274 PAB282 for counters C7 623 C7 624 Control Systems C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output Input Range The 4 universal inputs of the input range see Figure 4 7 have the following addresses and weightings Table 4 15 Input Address of the Universal Inputs PIW280 CI1 Counter input PIW282 CI2 Counter input PEB284 CI3 Counter input PEB285 Frequency period time counter PEB286 PEB287 Bit O Current state of universal input 1 Bit 1 Current state of universal input 2 Bit 2 Current state of universal input 3 Bit 3 Current state of universal input 4 Bit 4 Bit 5 States of the count inputs see Table 4 15 States of the The state of the individual inputs is stored as a bit pattern in PEB287 Inputs Table 4 16 State of the Inputs Address State Indication of Universal universal Inputs PEB287 Bit 1 universal input set Bit 0 universal input 1 reset Bit
216. peculiarity for OBs 121 and 122 The C7 CPU enters the value 0 in the following temporary variables of the variable declaration table in the local data of the OBs e Byte no 3 OB121_BLK_TYPE or OB122_BLK_TYPE type of block where error occurred e Byte nos 8 and 9 OB121_ BLK NUM or OB122_BLK_NUM number of block where error occurred e Byte nos 10 and 11 OB121_ PRG ADDR or OB122_PRG_ ADDR address in block where error occurred C7 623 C7 624 Control Systems 3 8 C79000 G7076 C624 01 Control with the C7 CPU 3 5 C 7 CPU Parameters Configurable Characteristics of the C7 CPU Tool for Parameter Assignment When Does the C7 CPU Accept the Parameters C7 623 C7 624 Control Systems C79000 G7076 C624 01 The characteristics and behavior of the C7 CPU can be configured Parameter blocks of the C7 CPU Clock memory Start up characteristics System diagnostics Retentive areas Process alarm Real time clock Time of day alarm Watchdog alarm Cycle behavior MPI station addresses The tool that you use to assign the parameters to the C7 CPU is the STEP 7 Function Hardware configuration Working with Hardware configuration is described in manual 100 The C7 CPU accepts the selected parameters After POWER ON After the parameters have been transmitted online and error free to the C7 CPU in STOP mode After erasing the C7 CPU see Chapter 2 3 If a SDBO is available on the integrated flash memory
217. perly This mode must therefore always be reset prior to exiting the menu with STOP RUN or RUN P C7 623 C7 624 Control Systems C79000 G7076 C624 01 2 Commissioning Start Up Mode Change Protected by Password Exit the Mode Menu Select DI DO Status Display 2 8 If a configuration is not loaded into the C7 OP then you can change the C7 CPU mode at any time without password protection When a configuration has however been loaded password protection is activated to prevent uncontrolled C7 CPU mode change during process control operations The procedure is as follows 1 If the C7 CPU mode is to be changed the active password level is checked password level gt 8 is necessary 2 If the password level is not sufficient the LOGIN screen for password entry is automatically displayed see Section 5 8 3 Enter password e You can change the C7 CPU mode only with a valid password e If no keys are operated within a time specified during the configuration an automatic log off is initiated reset of the current password level to 0 lowest level e Ifa password for Level 8 has not yet been allocated you can only change the C7 CPU mode by means of the configured superuser password default 100 4 If the password has been recognized as valid you can now change the C7 CPU mode J You can exit the C7 CPU mode menu by pressing the key The displayed values are read as a direct process image of the DI
218. ples of these functions are as follows Display screen Set date and time Modify general settings A control job consists of four data words The first data word contains the job number Depending on the function up to three parameters are transferred in data words 2 to 4 Figure C 1 shows the general structure of a control job Address Most significant byte MSB Least significant byte LSB Figure C 1 Structure of a Control Job Note Please refer to Section 9 6 for information on any provisions to be made in the interface area C7 623 C7 624 Control Systems C 6 C79000 G7076 C624 01 C7 OP Functionality Standard Screens Control Jobs System Messages Listing Table C 2 lists all the control jobs and their parameters which are possible with the C7 No Job number of the control job Table C 1 Control Jobs with Parameters Select C7 operating mode Parameter 1 f Off line Parameters 2 3 In general jobs can only be initiated when the C7 is already in on line mode Note That means that the C7 can not be switched on line by a control job Hardcopy Parameter k23 Select contents directory Parameter 1 Directory Display screens Directory recipes display Directory print screen Directory print recipes Directory recipes data record transfer Parameters 2 3 Print out all process screens Parameters 1 2 3 Print recipe with all data records Parameters 2 Recipe number 1 99 Parameter
219. pose of data communication Operating mode of the C7 in this mode messages are displayed and entries can be made in displays Organization Block The Operating System of the C7 differentiates between various priority classes for example cyclic program processing process interrupt controlled program processing Each priority class is assigned gt Organization Blocks OBs where the S7 user can program a reaction As a standard the OBs have different priorities to which they are processed when they occur simultaneously or when they interrupt each other The operating system of the C7 CPU organizes all functions and sequences of the C7 which are not connected to a specific control task Organization blocks OBs represent the interface between the operating system of the C7 CPU and the user program The sequence of user program processing is defined in the organization blocks Field for the display of an actual value C7 623 C7 624 Control Systems C79000 G7076 C624 01 Parameterization Parameters Parameters Dynamic Parameters Static Password Password Level PG PLC Process Image Process Interrupt Glossary Parameterization is the act of defining the module characteristics 1 Variable of a STEP 7 code block 2 Variable for setting the module reaction one or several per module Each module is supplied with a basic setting that can be changed by means of the STEP 7 tool S7 Configuration
220. put value and attaining the specified value at the analog output is between 100 us and 2ms C7 623 C7 624 Control Systems 4 16 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output 4 3 8 Behaviour of Analog I O Overview This section decribes e The relationship of the analog input and output values to the supply voltages of the analog I O and the operating modes of the C7 e The behaviour of the analog I O in relationship to the position of the analog values in the respective value range e The influence of errors on the analog I O Influence of the The input and output values of the analog I O are dependent upon the supply Supply Voltage voltage of the analog I O and the operating mode of the C7 and the Operating The triggering of a diagnostic alarm is dependent upon the parameter assignment Mode Table 4 11 gives an impression of these inter relationships Table 4 11 Dependencies Between Analog Input and Output Values upon the Operating State of the C7 and upon the Supply Voltage L Operating state of C7 Input value of the analog input Output value of the analog output POWER ON STOP Process value Substitute value or retain last value _ AN Influence of the The behaviour of the analog input is dependent upon the area of the value Value Range on range in which the input value lies Table 4 12 illustrates these dependencies the Input for the analog input valu
221. r example OPEN or CLOSED Temp Valve Contents Tank2 17 0 OPEN 1C 371 liters gt gt Figure 8 5 Screen with Input and Output Fields Example C7 623 C7 624 Control Systems C79000 G7076 C624 01 Extended O I Functions 8 2 Controlling the C7 OP from the C7 CPU Overview The C7 OP and the application program communicate with each other by alternately reading and writing to the data areas memory area pointers Thus the C7 can bring about different actions through evaluation of these user data areas The user data areas are described in detail in Section 9 2 Various Actions The table below explains which actions can be controlled Table 8 2 Control Functions Control jobs Control jobs are functions that are initiated on the C7 CPU for example selecting screens printing screens transferring the date and time from the C7 OP to the C7 CPU Jobs are submitted with a job number and certain parameters The C7 CPU can call up a screen for example to draw the operators attention to a particular condition or to the fact that inputs are required The required interface is described 1 You will find a complete list of control jobs with their parameters and a description of all the user data areas that have to be configured on the C7 CPU in Appendix C 3 Note Jobs sent from the C7 CPU to the C7 OP can be initiated only if the C7 OP is in online mode LED control The LEDs on t
222. race and sort the occurrence of individual diagnostics events Diagnostics events are e g e Errors in an I O module e System errors in the C7 CPU e Change of operating modes e g from RUN to STOP e Program errors in the CPU program The I O diagnostics are divided into two groups e Standard diagnostics general malfunction of the C7 analog I O module and universal inputs e Module specific diagnostics The standard diagnostics are always entered into the diagnostics buffers of the C7 CPU after the occurrence of a diagnostics alarm The precondition is an assigned module diagnostic The module specific diagnostics provide detailed information regarding the type and possible cause of the error This information can be called up by the application program by means of special system calls The precondition is the assignment of a diagnostics enable default setting is always no in this case You can select whether the analog input output diagnostics messages should be generated using STEP 7 Using the STEP 7 Tool S7 Configuration you can also assign parameters to the diagnostics behavior of the analog input output 1 e you select whether the analog I O diagnostics messages should be sent to the C7 CPU on request Furthermore you can assign parameters to define whether the module should trigger a diagnostics alarm in the C7 CPU after the occurrence of an error C7 623 C7 624 Control Systems C79000 G7076 C624
223. ration can be selected using these standard displays The individual functions are described in this manual with the help of standard screens If you want to work with these standard screens you must load the supplied configuration The standard screens contain functions that are fundamental to C7 operation They include for instance calling and printing message buffers editing passwords and modifying parameters on line Process specific implementations such as event messages or screens for the process are not included Note The standard screens supplied with the standard configuration call up the so called special screens which are loaded into the C7 s firmware You can call up these screens in your own configuration by using the function Select Special Screen Standard screens are called from a basic screen by means of a soft key From the basic screen a branch can be made to the following screens e Event messages At this point the event buffer is called printed or deleted see also Section 7 1 1 e Alarm messages At this point the alarm buffer is called printed or deleted see also Section 7 1 1 e Screens At this point the screen contents directory is called to edit or print screens All the screens which were given the directory attribute are listed here If you still have not created any screens of your own the directory will be empty see alsof Section 7 5 e Data records At this poi
224. re is possible we will now speak of data records Data records are stored on the C7 OP which saves memory space on the C7 CPU Example of a Let s assume that orange nectar orange drink and orange juice are to be recipe produced using the same bottling station in a fruit juice plant The mixing ratios are different for each drink but the ingredients are the same The information required for production can be configured as the recipe Mixture Mixing station To the bottling station Figure 7 6 Example of a fruit juice plant C7 623 C7 624 Control Systems C79000 G7076 C624 01 1 25 Standard O I Functions Components of a A recipe consists of a series of recipe entries Each entry contains a recipe maximum of one input field 1 e variable Depending on the configuration either direct or symbolic value input can be used in an input field The recipe called Mixture could be set up from the following entries Name Orange EE Water a ougar sl Aroma Input fields variables In contrast to screens several entries are displayed on the OP simultaneously for recipes Data records on On the OP the variables allocated to the input fields are assigned with values the OP and stored on the OP Together these values form one data record of the recipe Several data records can be s
225. rlsruhe AUT 14 P Hr Boltz Bannwaldallee 48 0721 9 92 24 13 Fax 07 21 9 92 25 85 34117 Kassel AUT P 13 Hr Uhlig B rgermeister Brunner Str 15 05 61 78 86 3 32 Fax 05 61 78 86 4 48 87439 Kempten AUT P Hr Fink Lindauer Str 112 0831 58 18 2 25 Fax 08 31 58 18 2 40 24109 Kiel AUT 1 Fr Drews Wittland 2 4 T 04 31 58 Fax 04 31 58 56068 Koblenz AUT P 11 Hr Ricke Frankenstr 21 T 02 61 Fax 02 61 2 44 1 32 1 32 2 55 50823 K ln AUT P 14 Hr Prescher Franz Geuer Str 10 0221 5 76 27 62 Fax 02 21 5 76 27 95 AUT P Fr Wiest Fritz Arnold Str 16 075 31 988 2 02 Fax 075 31 988 1 40 ZN ZN ZN ZN ZN ZN ZN ZN 04105 Leipzig AUT P 2 Fr Kiesewetter Springerstr 15 T 03 41 Fax 03 41 30 07 2 10 2 10 30 63 al ai 39106 Magdeburg AUT VG 33 Hr Ganschinietz Sieverstorstr 32 33 0391 5 88 17 21 Fax 03 91 5 88 17 22 68165 Mannheim AUT 16 P Hr Sulzbacher Dynamostr 4 06 21 4 56 28 43 Fax 06 21 4 56 25 45 81679 Munchen AUT P 14 Hr Schafer Richard Strauss Str 76 0 89 92 21 30 64 Fax 0 89 92 21 43 99 48153 Munster AUT S 13 Hr Schlieckmann Siemensstr 55 02 51 76 05 4 25 Fax 0251 76 05 3 36 90439 Nurnberg AUT P 11 Hr Glas Von der Tann Str 30 09 11 6 54 35 87 Fax 09 11 6 54 73 84 49090 Osnabr ck AUT S 13 Hr P hler Eversburger Str 32
226. roller within a specified period of time This time was exceeded Possible causes Reception of the data record was not acknowledged by the controller user program The data record is very large The data record is transferred completely despite the timeout 260 The controller mode e g manual mode automatic mode STOP mode does not correspond to the configuration 261 A data set can no longer be used since the data is not consistent 257 A data record was not stored in connection with the currently loaded recipe version If the data records concerned are still to be used the old version must be entered in the recipe configuration The assignment of the values of a data record is defined in the recipe structure If the structure was modified in a new configuration an old data set may be interpreted incorrectly C7 623 C7 624 Control Systems C79000 G7076 C624 01 C 19 C7 OP Functionality Standard Screens Control Jobs System Messages requested or are no longer vaild Ee 312 Print job rejected because similar job now being executed Wait until previous job terminated initiate again 313 Print job will be processed later because printer now busy 315 Information text has not been configured for highlighted object that is message setpoint 316 317 318 Login attempted with invalid password 319 You entered and tried to edit an existing password 320 Enter password first an
227. rt of Message Explanation Message No Details relating to the next field message number of the system message The displayed message number is number 200 Date and time occurrence of the system message Display Message Display message text of selected system message D Text Return to system message KI C7 623 C7 624 Control Systems C79000 G7076 C624 01 7 13 Standard O I Functions 7 1 6 Deleting Messages Overview Deleting Event and Alarm Messages in Standard Screens Automatic Deletion of the Alarm Message Buffer upon Buffer Overflow 7 14 Event and alarm messages are stored automatically in the event and alarm message buffers respectively Each of these buffers can contain as many as 256 events To prevent a buffer from overflowing you should delete event and alarm messages from the buffer Messages from the event and alarm message buffers are deleted either e By means of a standard screen or e Automatically upon buffer overflow System messages are deleted automatically only when the buffer overflows Standard screens can be used to delete e All not individual acknowledged and departed alarm messages e All not individual arrived and departed event messages To delete event and alarm messages proceed as follows 1 Depending on the type of message you want to delete choose one of the two standard screens either Alarms Delete for alarm messages or Events Delete for event messages
228. rwrite Press ESCAPE 10 Exit standard screen with ESCAPE As long as you have not confirmed an input value you can terminate editing with ESCAPE The old value is then displayed again C7 623 C7 624 Control Systems C79000 G7076 C624 01 1 29 Standard O I Functions Storing a changed data record as a new data record To save a changed data record as a new data record do not overwrite the called data record when exiting the input screen Instead enter a new data record number and if necessary a new data record name before saving the data record 1 Position cursor in the field for the data record number enter the number and confirm 2 Position cursor in the field for the data record name enter the name and confirm The data record name may not exceed 12 characters The next time you call the data record directory you will find the new data record listed under the new data record number 7 4 2 Copying Data Records Overview Copying a data record 7 30 There are two ways to copy a data record e You can call an existing data record for editing and save it unchanged under a new number and if necessary under a new name Then make your changes e Save an existing record via data record transfer under a new number and if necessary under a new name Then make your changes in the copy Proceed as follows to obtain a copy of a data record whose values you want to change later 1 Call the data record to be
229. s How the Measured The tables 4 9 contain the digitized analog values for the various Value Tables measurement ranges Should be Read Since the binary representation of the analog values is always the same the tables contain only the comparison of the measurement ranges to the units These tables are therefore clearer and easier to read The corresponding binary representation of the measured values can be referred to in Table 4 8 Measured Value The bits identified with x are not relevant to a resolution of 12 bits Resolution Table 4 8 Possible Resolutions of Analog Values Resolution in Bit Analog Value C7 623 C7 624 Control Systems 4 12 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output Voltage and Table 4 9 contains the representation of the digitized voltage measurement Current ranges for 10V and the digitized current measurement ranges 20 mA Measurement 4 20 mA Ranges Table 4 9 Representation of the Digitized Measured Value of the Analog Inputs Voltage and Current Measurement Ranges Measuring Measuring Measuring Units Range re 20 oe 11 7589 32511 7EFFYH Upper range 10 0004 20 0007 6COly Nominal range 10 0004 20 0007 Underflow range Lower range C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 13 Addressing Parameter Assignment and Function of the C7 Input Output 4 3 5 Representation of Analog Values for the Output Range
230. s which can be increased by alarms or communications via the MPI of the C7 CPU Table 3 17 Process image update of the C7 CPU T O Configuration Process Image Update Times 1 C7 16 bytes approx 200 us on approx 150 us C7 3 racks 64 bytes approx 850 us ae approx 600 us C7 3 racks 128 bytes max configuration PH approx 1480 us PIQ approx 1020 us C7 623 C7 624 Control Systems 3 26 C79000 G7076 C624 01 Control with the C7 CPU 3 6 1 Calculation Example for the Cycle Time Component Parts To recap The cycle time consists of the following of the Cycle Time Process image transfer time Operating system execution time User program execution time Processing time for S7 timers Example The user program in the C7 CPU has an execution time of 1 5 ms Your user program uses four S7 timers In the C7 CPU you have done without the C7 CPU self test and since the C7 CPU 1s a stand alone unit the cycle is not loaded with communication tasks Calculation In the example the cycle time is calculated from the following times Execution of S7 timer 1 F Process image transfer time Process image input table approx 0 2 ms Process image output table approx 0 15 ms Operating system run time Cycle control approx 0 87 ms Rack monitoring approx 0 05 ms User program execution time approx 1 5 ms Processing time for S7 timers For four S7 timers the single update takes 4 x 7
231. s Value at Measurement range 0 Deactivated 3 4 20mA 4 20mA if measurement type current 9 10V if measurement type voltage type current 9 10V 08 J l Measurement type 0 Deactivated 1 Voltage 2 Current Cycle end alarm 0 No 1 Yes only if Byte 4 lt gt 1 09 n Measurement range 0 Deactivated 3 4 20mA 4 20mA if measurement if measurement type voltage These 4 bits are ORed during evaluation as only one analog measuring cycle is available C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 41 Addressing Parameter Assignment and Function of the C7 Input Output 4 6 Examples for Programming the Analog I O and the Universal Inputs Overview The following examples for programming the analog I O and the universal inputs of counters will help you to get familiar with the principles for programming the C7 I O The three following examples are contained in this section e Block for scaling analog output values e Block for scaling analog input values e Block for programming the counters 4 6 1 Block for Scaling Analog Output Values Function of Block Summary of Formulae FC127 Sequence of Statements 4 42 The FC127 block is used to convert the setpoint to be specified in a memory double word as floating point number to the corresponding hexadecimal pattern analog value which must be output to a peripheral output word For this purpose a simple calculation using the rule of three is programme
232. s 2 3 C7 623 C7 624 Control Systems C79000 G7076 C624 01 C 7 C7 OP Functionality Standard Screens Control Jobs System Messages Table C 2 Control Jobs with Parameters Continued Select special screens The following screens integrated in the firmware can be selected via their fixed object number Parameter 1 n 6 Cursor lock O off 1 on n 7 Special screen number Alarm message buffer 1 Buffer output 2 Output message number 3 Overflow warning on off 4 Delete buffer yes no Event message buffer 1 Buffer output 2 Output message number 3 Overflow warning on off 4 Delete buffer yes no PG functions 25 Status VAR 26 Control VAR Special functions 30 Language brightness contrast 31 Change operating mode Settings 35 Adjust date time 36 V 24 interface 38 Printer parameters 40 Message type Message text 45 Display alarm message 46 Display event message System messages 50 Output system message buffer Password 59 Login 56 Password input C7 system functions 97 C7 system function menu 98 C7 CPU mode selection 99 DI DO status display Parameters 2 3 Message logging on off Parameter 1 Parameters s2 3 C7 623 C7 624 Control Systems C 8 C79000 G7076 C624 01 C7 OP Functionality Standard Screens Control Jobs System Messages Table C 2 Control Jobs with Parameters Continued Switching language Parameter 1 Parameters 2 3 Set time Parameter 1 Eee Parameter 2
233. sasummary this means all messages contained in the buffer of the type of message concerned are printed in ascending message number order If a message occurs more than once it is slotted in according to time related criteria The default setting is chronological The default setting can be modified during configuration An on line choice of either Chronological or Summary is only possible when it has been correspondingly configured Activate Printer Select the standard screen Alarms Print to print out the alarm messages or Events Print to print out the event messages C7 623 C7 624 Control Systems C79000 G7076 C624 01 7 17 Standard O I Functions 7 2 Screens Overview Screen Structure Screen Directory Selecting Screens 7 18 The C7 s process is displayed and administered on the screens that is a processing machine or mixing station The responsible person configures the screens for the relevant user specific applications Logically associated process values are acquired and displayed on screens to provide an overview of a process or system In addition to this alphanumeric imaging of the processes the screens provide a means of entering process values and consequently a means for controlling the process You can configure up to 99 screens for the C7 Example Process values on a screen can be randomly assigned to subject related groups An example of this is shown in Figure 7 5 Furnace 1 tempera
234. screen number area system keyboard image 9 9 Data area retentive Data record C7 CPU gt C7 OP C7 OP gt C7 CPU recipes 9 19 transfer synchronization Data record name Data Records Date and time DB Decimal places Default poes eel 6 28 Delay alarm Delete alarm message event message Delete key Deleting alarm message buffer 7 14 event messages messages password Deleting process alarm messages 7 14 DI DO status display exit explanation select C7 623 C7 624 Control Systems C79000 G7076 C624 01 Index Diagnostic entry channel specific Diagnostic evaluation Diagnostic events Diagnostics alarm 4 18 analog input analog output C7 I O 5 2 enabled entry parameter asignen SA parameter block FOE Diagnostics alarm oe Diagnostics area Eo 5 4 4 Diagnostics buffer Diagnostics Error temporary Diagnostics error permanent Diagnostics messages reaction DIR key 7 19 Direct message logging 7 16 Directory key 6 Display alarm message 6 7 C 4 contrast C 10 height technology Display function Display priority Display variant mixed seperat Displaying messages password list Download 6 13 Dynamic parameters Digital 1 z universal inputs E Enable diagnostic alarm 4 8 Enabled diagnostics End alarm alarm cycle Enter key Enter string Entering password automatic 6 27 4 10 Index 3
235. se time Internal interrupt preparation time input delay The times are listed in the data sheet for the respective digital input module e Analog input modules Process interrupt response time Internal interrupt preparation tme conversion time The internal interrupt preparation time of the analog input modules can be neglected Please refer to the data sheet of the respective analog input module for conversion times Process interrupt handling begins when the process interrupt OB OB 40 is called Higher priority interrupts cause the process interrupt handling routine to be interrupted Direct accesses to the I O are made at the execution time of the instruction When the process interrupt handling routine has finished either cyclic program execution continues or further interrupt OBs of higher priority or the same priority are called up and executed To recap the process interrupt response time is composed of e The process interrupt response time of the CPU e The process interrupt response time of the signal module Example In the example the C7 I O is to be used exclusively C7 623 C7 624 Control Systems C79000 G7076 C624 01 Calculation Control with the C7 CPU For the example the process interrupt response time is calculated from the following times e Process interrupt response time of the C7 CPU approx 1 1 ms e Process interrupt response time of the module Internal interrupt preparation time 0 6 ms
236. software 0 no 1 yes only for 4 20mA Measurement underrange 0 no 1 yes underflow Measurement overrange 0 no 1 yes overflow Channel Specific Diagnostics Byte AI4 C7 623 C7 624 Control Systems 5 6 C79000 G7076 C624 01 Diagnostics Table 5 2 Layout of the Diagnostics Area Continued Byte Bit Meaning Explanation Value Range 0 Parameter error in parameters for channel Wire breack in software O no yes only for 4 20mA Measurement underrange O no 1 yes underflow Measurement overrange O no 1 yes overflow Channel type AQ of the following channel specific diagnostics information 13 0 7 Number of analog output 1 channels 14 0 7 Number of diagnostics bits per channel 15 Channel Vector for Channel Group AQ Ea Collective error in AQI O no 1 yes Oll Analog inputs will be reset until the channel functions again Exception parameter assignment for wire break check for setting lt gt 4 20mA AI 7FFFH Analog output will be reset until channel functions again AQ 0V OmA Counters will be reset until channel functions again CI FFFFH FC IC FFFFFFH x x NO process alarm no diagnostics alarm no disturbance on the analog I O bit 0 of byte 0 0 C7 623 C7 624 Control Systems C79000 G7076 C624 01 5 Diagnostics 5 3 Constraints and Interactions of the Diagnostics Evaluation Overview The diagnostics entries are interdependent For example the me
237. splay contents from the C7 OP to the C7 CPU and from there to trigger certain reactions like calling up another screen for example If the screen number area is to be used it must be declared as an area pointer in the configuration It can only be placed once and in one C7 CPU The screen number area is spontaneously transferred That means the transfer always happens if a change 1s registered at the C7 OP In this case you do not need to configure a polling time The screen number area is a data area with a fixed length of 2 data words The layout of the screen number area for the C7 OP in the control memory is represented below 7 O 7 0 Current Input number Current Input field number lst word 2nd word Current input field number Oto 8 0 Input field number All bytes of the screen number area are assigned with FFy in the message level and for the display of a contents directory For special screens se Section C 3 the screen number area is assigned as follows lst word 2nd word 7 0 7 o Current input field number C7 623 C7 624 Control Systems C79000 G7076 C624 01 Data Areas for Communication between the C7 OP and the C7 CPU 9 6 Interface Area Overview Layout of the Interface Area The interface area is only necessary for the C7 CPU if its functions are to be used or evaluated by the C7 CPU The interface area must be configured if you want to use the following functions
238. ssage on the error wire break can only become effective if the diagnostics entries external error and channel error are set simultaneously Constraints for These interactions are illustrated in Table 5 3 Error Entry Table 5 3 Constrants and Interactions of the Error Entries ByteO Bit 1 1 Internal error Byte7 Evaluate channel vector if req Wire break Byte 8 9 10 11 Bit 4 1 channel specific diagnostics bytes AI E P Underrange Byte 8 9 10 11 Bit 6 1 channel specific diagnostics bytes AI E P M Overrange Byte 8 9 10 11 Bit 7 1 channel specific diagnostics bytes AI E P M Byte 0 Bit7 1 Incorrect parameter Byte 8 9 10 11 Bit 0 1 channel specific diagnostics bytes AI P Byte15 Bit 0 1 Collective error AO only parameter error possible P Byte 0 Bit 6 1 Module not assigned parameters Legend E temporary correction by alteration at connector P permanent reset by use of correct parameter R permanent remove by RESET complete erasure and restart of C7 CPU or exchange of equipment M temporary disappears after new measurement C7 623 C7 624 Control Systems 5 8 C79000 G7076 C624 01 Reaction to Diagnostics Messages user Table 5 4 Diagnostics Messages and Reaction Possibilities Reason for the Source of Error Diagnostics Message Module not assigned parame ters During the start up of the module if no parameters were assigned to the C
239. t C7 CPU by means of diagnostic interrupts Representation of logically related process data for display and modification in the C7 either in groups or individually Interval between the arrival of an event message and reaching of the back to normal state C7 623 C7 624 Control Systems C79000 G7076 C624 01 Display Entry Display Function Display Level Event Message Fault Message Fault Time FB FC Flash EPROM Forced Printout Glossary Element of a display It consists of the entry number text and variables Function that causes a change of the display contents for example display of message level or display of fault message buffer Processing level of the C7 at which displays can be monitored and operated It draws the operator s attention to certain operating states in the machine or plant to which the C7 is connected It points out particularly critical operating states A fault message always requires an acknowledgement Interval between the arrival of a fault message and reaching of the back to normal state Function Block Function With regard to their characteristic to retain data in the case of a power failure FEPROMs correspond to the electrically erasable EEPROMs but can be erased much faster FEPROM Flash Erasable Programmable Read Only Memory The following data can be held in flash memory without being affected by a power failure e The User Program e The
240. t a correction factor of 4 ms Example If the real time clock is two seconds slow after seven days the correction factor is to be calculated as follows 2 seconds 7 days 286 ms day consequently you have to set a correction factor of 286 C7 623 C7 624 Control Systems C79000 G7076 C624 01 3 15 Control with the C7 CPU 3 5 7 Parameter Block Time of Day Alarms Overview The C7 CPU can trigger Time of Day alarms which you can activate and assign parameters via the parameter block Time of Day alarms Priority The priority of the OB 10 is fixed at the value 2 You cannot change this value Parameter Block Table 3 12 lists the parameters of the parameter block Time of Day alarms Time of Day Alarms Table 3 12 Parameter Block Time of Day Alarms Explanation Value Range Default Setting Active OB 10 Activation of OB 10 Execution OB 10 Here you set the execution intervals in which the None time of the day alarm should be triggered The Once only execution interval refers to the start date and the Every minute start time setting Every hour Every day Every week Every month Every year Start date OB 10 The start date on which the time of day alarm 1994 01 01 should be triggered Start time OB 10 The start time at which the time of day alarm 00 00 00 should be triggered The start time can only be entered in hours and minutes C7 623 C7 624 Control Systems 3 16 C79000 G70
241. ter Assignment and Function of the C7 Input Output The universal counter inputs are controlled by the application program The control possibilities you have in the application program to influence the counters are explained in Table 4 20 Table 4 20 Control of Counters by the Application Program Aim Procedure Start counter Enter a valid start value Gf backward counting or a valid comparison value PQW274 PQW277 PQW280 Activate the new start comparison value Bit 1 of PQB276 PQB279 PQB282 rising edge O gt 1 Start the counter by selecting the start bit Bit 0 of PQB276 PQB279 PQB282 falling edge O 1 Stop counter Reset the start bits Bit 0 of PQB276 PQB279 PQB282 falling edge O 1 Restart counter with counter If necessary enter a new start value or retain old initialization reset start value for backward counting or comparison value for forward counting PQW274 PQW277 PQW280 e Activate the new start comparison value Bit 1 of PQB276 PQB279 PQB282 rising edge 0 gt 1 Set the start bit Bit 1 of PQB276 PQB279 PQB282 rising edge O gt 1 Restart counter without No setting of the new start comparison value counter initialization counter i Start the counter by setting the start bit continues counting without a Bit 0 of PQB276 PQB279 PQB282 reset rising edge 0 1 Select new start comparison Enter new start comparis
242. the buffer and the number of the alarm messages still existing Return to alarm message list Select the standard screen Events View The messages received in the event message buffer are now displayed in the event message list They are categorized with message number date and time occurrence and message status arrived or departed Message No 045 K on 12 04 95 10 23 50 Message No 031 G on 12 04 95 09 51 43 Figure 7 3 Example Display of the Event Message Buffer C7 623 Table 7 5 Explanation of Figure 7 3 Part of Message Explanation Details relating to next field Message number of event message The displayed event message is number 045 Display message text relating to selected event message D lt Return to event message list Select the standard screen Event Number Here you receive an overview of all event messages in the buffer and the number of the alarm messages still existing Select the standard screen System gt SysMsg C7 623 C7 624 Control Systems C79000 G7076 C624 01 Standard O I Functions The messages contained in the system message buffer are now shown on the display together with details of the message number and the date and time of their occurrence Message no 200 on 12 04 95 10 23 50 Message no 200 on 12 04 95 10 24 00 Figure 7 4 Example Display of System Message Buffer for C7 624 Table 7 6 Explanation of Example in Figure 7 4 Pa
243. the condition that the universal inputs are designed for a maximum frequency of 10kHz The minimum period time of 0 1 ms follows Therefore the upper threshold frequency is 10 kHz corresponding to 600 000 rev min If this frequency is exceeded then the input values will be erroneous since individual pulses will be suppressed by the input filter of 10 kHz The relative measuring discrepancy gets smaller as the period time increases Thresholds These thresholds are applicable for a transducer that generates one pulse per revolution If you use transducers that generate several pulses per revolution then you must reconsider the threshold frequencies Counter Overflow The counter value FF FF FFy indicates a shortfall of the lower threshold A diagnostic report will not be generated in this case Parameter In order to use the universal input 3 as a period time counter this must also Assignment be assigned as such parameters This is performed with the STEP 7 Function Hardware configuration C7 623 C7 624 Control Systems 4 38 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output 4 5 Data Set Description for Parameter Block of C7 Analog I O and Universal Inputs Overview If a reassignment is to be performed during normal process operations then the validity and inter relationships between the individual parameters must be examined by the application program Incorrect value ranges of the para
244. the configuration has already not been loaded How you can activate the C7 CPU operational modes RUNP RUN STOP and MRES How you can activate the DI DO status indication How you perform a memory reset of the C7 controller Start up Characteristics and Commissioning 22 C7 CPU Mode Selection and DI DO Status Indication Memory Reset of the C7 Load Erase C7 CPU Flash EPROM C7 623 C7 624 Control Systems C79000 G7076 C624 01 2 1 Commissioning Start Up 2 1 Start Up Characteristics and Commissioning Start Up After connecting the power supplies the C7 performs a self test During this test it checks the functionality of the most important device components and shows the test results on the status LED and display The following start up procedure is followed 1 The C7 performs a self test after POWER ON 2 If the configuration has not been loaded a contrast setting is requested You must confirm this with when the display is easily readable 3 The C7 performs an operating system test 4 During the start up phase 1 and 3 the C7 CPU remains in the STOP mode After start up the C7 is in the message mode The following standby messages is displayed SIMATIC C7 Vx XX C7 623 Figure 2 1 C7 623 Standby Message 5 After start up of the C7 the previously selected C7 CPU mode is valid The following states can occur in the C7 These determine your further actions e No control
245. the inputs and outputs e Case 1 An output channel is enabled when a digital input signal is read in The response time is Response time 4 8 ms 5 ms 9 8 ms 10 ms e Case 2 An analog value is read in and an analog value is output The response time is Response time 2 5 ms 5 ms 0 9 ms 3 9 ms 4 ms C7 623 C7 624 Control Systems C79000 G7076 C624 01 3 29 Control with the C7 CPU 3 6 3 Process Interrupt Response Time Process Interrupt Response Time Calculation C7 CPU Signal Modules Process Interrupt Handling Calculation Example 3 30 The process interrupt response time is the time that elapses between the first occurrence of a process interrupt signal and the calling of the first instruction in the process interrupt OB OB 40 In general higher priority interrupts take precedence That means the process interrupt response time is increased by the program execution time of the higher priority process interrupt OBs and process interrupt OBs of the same priority which have not yet been processed The process interrupt response time is calculated as follows Process interrupt response time Process interrupt response time of the C7 CPU process interrupt response time of the signal module The process interrupt response time of the C7 CPU is 1 1 ms The process interrupt response time of the signal modules is calculated as follows e Digital input modules Process interrupt respon
246. the password is Password 100 This can be changed during configuration Select the standard screen Password Edit The password list is displayed A maximum of 50 passwords is possible Password level Password Password index Figure 6 7 Example of a Password List Table 6 5 Explanation of Terms in Figure 6 7 Legend in Diagram Explanation Password index The two digit number at the start of the password entry is the password index If no password is entered for a defined password index the fields for the passwords are represented by dotted lines Password To the right of the password index is the field for the actual password The password must be a minimum of 3 and a maximum of 8 characters long It can be made up of digits and the letters A F Password level When the password list is first called up it contains only the entry of the super user C7 623 C7 624 Control Systems C79000 G7076 C624 01 Issue of Password and Password Level Changing Password and Password Levels Deleting Password Operating the C7 General A password and password level are issued according to the following procedure Select the line for password entry in the The cursor is positioned on the password list first character of the field for the password input Enter a password that does not yet exist and confirm it A leading zero in the password is not valid 3 Position the cursor to the rig
247. then bottled in the correct quantities The bottles are transported on a con veyor belt Before being filled they are checked for damage After they have been filled the bottles are capped labeled and transferred to pallets Basic Screen The C7 623 s configured basic screen could look like the one shown in Figure 8 3 The basic screen consists of static text only Unit 1 Mix Bottle lt lt gt gt Figure 8 3 Start Screen for the Mixing and Bottling System C7 623 The screen segment on the display can be selected with the softkeys below the symbols You can shift the screen horizontally using the softkeys lt lt and gt gt Select Mix Pressing the softkey beneath the Mi x entry allows you to view the entry shown in Figure 8 4 It similarly consists of static text which refers to other screens Tank2 Tank3 and Mixer Mixing unit Tank2 Tank3 Mixer lt lt Figure 8 4 Screen with Static Text Example C7 623 C7 624 Control Systems C79000 G7076 C624 01 8 5 Extended O I Functions Select Tank2 8 6 If you press the Tank2 softkey the entry displayed in Figure 8 5 appears The entry contains the static text and two output fields tank contents and set temperature as well as an input field valve position The position of the tank valve can be set in the input field by means of a symbolic value input fo
248. this way the screen that has been permanently defined during configuration can be selected in any operating situation Selecting by directory Call the standard screen via Screens Edit The screen directory is shown in the display It contains only screens which were included in the directory during configuration You can scroll through the screen directory using the arrow keys A screen is chosen by pressing RETURN As an alternative to the standard screen Screens gt Edit you can call the screen directory using the DIR key on the system keyboard A screen chosen with ENTER can be edited but not printed Selecting with a control job For a guided operation you can select a screen from the C7 CPU by means of a control job In this instance the cursor is already positioned in a specified entry or in an input field in which the operator can perform input see alsg section 9 6 Exiting Screen You leave the screen level by pressing ESC Level C7 623 C7 624 Control Systems C79000 G7076 C624 01 7 19 Standard O I Functions Editing Screens Screens can be manipulated this means edited by means of entries in input fields and combined input output fields To edit a screen proceed as follows 1 Select the screen you wish to edit as The screen is displayed The cur described under Select Screen sor jumps to the first input field 2 Move to the required field using the keys The cursor is positioned on the
249. tion describes the C7 analog I O and universal inputs with regard to their module specific diagnostics messages Table 5 1 provides an overview of the channel specific diagnostics messages of the analog input The diagnostics information is allocated to the individual channels Table 5 1 Diagnostics Message of the Analog Input M short circuit Wire break only for 4 20mA by software Underrange underflow Reference error Overrange overflow Only one collective error exists for the analog output Possible causes of the collective error could be e Parameter error e Substitute value is connected The diagnostics area consists of e Data set 0 the standard diagnostics bytes 0 3 e Data set 1 the channel specific diagnostics bytes for enabled diagnostics Byte 4 7 and byte 8 11 channel and individual information analog input AI diagnostics Byte 12 15 channel information analog output AO diagnostics C7 623 C7 624 Control Systems C79000 G7076 C624 01 Diagnostics Table 5 2 illustrates the layout of the diagnostics area and the meaning of the individual entries Table 5 2 Layout of the Diagnostics Area Byte Bit Meaning Explanation Value Range Module fault Internal error External error Channel error External auxiliary voltage absent Front plug absent Module not assigned parameters Incorrect parameters Module class Module class Module class Module class Syst
250. tion explains how the cycle and response times of an user program are structured Use the programming device to read the cycle time of the user program on the C7 CPU see programming manual 280 We will show you how to calculate the cycle time using an example The response time is of greater interest however This chapter includes a detailed description of how to calculate the response time The cycle time is the time that passes during a program cycle The cycle time comprises the following elements e Process image transfer time PII and PIQ e Operating system run time e User program processing time Diagram 3 2 shows the elements of the cycle time The sections enclosed by the dotted lines form a time unit in which no user program is processed user pro gram Figure 3 2 Elements of the Cycle Time The response time is the time that elapses between the recognition of an input signal and the change to the associated output signal C7 623 C7 624 Control Systems C79000 G7076 C624 01 Factors Variation Range C7 623 C7 624 Control Systems C79000 G7076 C624 01 Control with the C7 CPU The response time is dependent upon the following factors Process image transfer time Operating system run time user program processing time Communications via the MPI Inherent delays in the inputs and outputs The actual response time lies between a shortest and a longest response time During the configuration of yo
251. tion of the C7 Input Output With the S7 status function of the STEP 7 the following can be monitored PIW280 current counter value C1 MW20 counter image Cl PIW282 current counter value C2 MW22 counter image C2 PIW284 current counter value C3 MW24 counter image C3 MB40 number of alarms triggered by Cl MB41 number of alarms triggered by C2 MB42 number of alarms triggered by C3 PIB287 status of alarms The OB100 complete restart block contains the following statements ORGANIZATION_BLOCK OB 100 var_temp start_info array 0 19 of byte end_var BEGIN Resetting the counters L 0 explicit stopping of all counters T PQB276 C1 T PQB279 C2 T PQB282 1 C3 CALL SFC 47 WT 10000 wait so that STOP becomes effective Setting comparison values L 10 setting comparison value Cl T PQW274 L 20 setting comparison value C2 T PQW277 L 40 setting comparison value C3 T PQW280 Declaring comparison values valid and starting counter L 3 declaring comparison value valid and starting T PQB276 Cl T PQB279 C2 T PQB282 1 C3 END_ORGANIZATION_BLOCK C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 51 Addressing Parameter Assignment and Function of the C7 Input Output OB1 Statement OB 1 contains the following statements Sequence ORGANIZATION_BLOCK OB1 var_temp start_info array 0 19 of byte status BYTE end_var BEGIN Fvaluation if
252. transferred pof the function keyboard image is described in Ne Mak e U Section 9 4 2 System keyboard A bit is permanently assigned to every key on the system image keyboard apart from the cursor keys and the directory key in the data area for system keyboard bits The bit remains set for as long as the corresponding key is pressed The bit is reset when you release the key Due to the evaluation of this data area the operator s attention can be drawn to the wrong operation of a key for example by means of an error message The make up of the system keyboard image is described in Section 9 4 1 Date and time Transfer of date and time can be initiated from the C7 OP by means of a control job in order to synchronize the C7 OP and the C7 CPU Acknowledgement By configuring a suitable data area area pointer alarm area C7 CPU gt messages can also be acknowledged by the C7 CPU C7 OP application program instead of from the I O part See also Acknowledgment By configuring a suitable data area area pointer the C7 CPU area C7 OP application program can be told that an alarm message has C7 CPU been acknowledged se Section 9 3 C7 623 C7 624 Control Systems 8 8 C79000 G7076 C624 01 8 3 Schedulers Overview Functions Changing schedulers Extended O I Functions Depending on the configuration you can specify so called schedulers for the C7 624 A scheduler is a regularly recurring point
253. ts outputs memory bits times counters data at a specified position and thus control the user program directly Block status Observe a block with regard to the program sequence to aid commissioning and fault finding Block status offers the possibility of observing certain register contents during the execution of statements e g AKKUs address register status register DB register C7 623 C7 624 Control Systems C79000 G7076 C624 01 3 35 Control with the C7 CPU 3 8 Load Erase C7 CPU Flash Memory Overview During transmission of an user program to the C7 CPU it is transmitted only to the load memory and not automatically into the C7 CPU flash memory also The contents of a C7 CPU flash memory are not automatically reset during a memory reset of the C7 CPU You must explicitly initiate these actions Load user You must explicitly load the C7 flash memory using the STEP 7 function Program into Flash copy RAM to ROM You do this after you have copied the program and Memory data into the load memory In this way the whole contents of the load memory is transmitted to the flash memory Erase Flash After the memory reset the load memory is reinitialized with the contents of Memory the flash memory However since you can change the contents of the flash memory only using the STEP 7 function copy RAM to ROM you must proceed in the following manner to erase the flash memory 1 Select all OBs FBs FCs and DBs
254. ture 80 C Furnace 2 temperature 78 C Furnace 1 contents 1200 1 Furnace 2 contents 3000 1 Figure 7 5 Example for Thematically Grouped Process Values C7 623 A screen consists of the following components e A title optional max character count display width less 3 e Screen entries max 99 e A return destination reached by pressing the ESC key Possible return destinations are The message level Another screen A screen directory The point at which the current screen was chosen During configuration screens can be grouped in a screen directory which is used to display them on the screen or print and edit them A screen can be retrieved from its screen directory by its screen number and its screen title if configured The C7 screens can be viewed serviced edited and printed Before this is possible they have to be selected C7 623 C7 624 Control Systems C79000 G7076 C624 01 Standard O I Functions A screen can be easily selected by the following means e Soft key e Function key e Directory contents e Control job The various selections are explained in Table 7 7 Table 7 7 Selection Possibilities for a Screen Selecting with the soft key You can branch from one screen to another using soft keys The branch is defined in the configuration Selecting with the function The configured assignment of the function keys is key valid globally unlike the soft keys In
255. uding rights created by patentgrantorregistration of a utility model or design are reserved Siemens AG Automation Group Industrial Automation Systems Postfach 4848 D 90327 Nurnberg Disclaimer of Liability We have checked the contents of this manual for agreement with the hardware and software described Since deviations cannotbe precluded entirely we cannot guarantee full agreement However the data in this manual are reviewed regularly and any necessary corrections included in Subsequent editions Suggestions for improvement are welcomed Siemens AG 1995 Technical data subject to change Siemens Aktiengesellschaft C79000 G7076 C624 Contents 1 IMrOGUCHOMN s2c 4sectedeeet bese ea teee re Peete eeeeaedteecenoeuseee ss H 1 1 1 Control with the C7 2 0 cc eee eee n eens 1 2 1 2 Operator Control and Monitoring with C7 0 0 0c 1 3 1 3 CT OVEIVICW aiisiG tats oe Hace Saeed 2 OKA Oe AAs Se A ORS wee 1 6 2 Commissioning Start Up cece eee eee eee 2 1 2 1 Start Up Characteristics and Commissioning 00e0eeeee 2 2 2 2 C7 CPU Mode Selection and DI DO Status Display 2 5 2 3 Memory Reset of the C7 ccc nee 2 10 2 4 Load Erase C7 CPU Flash Memory 0 00 c cece eee eens 2 12 3 Control with the C7 CPU 0 ccc eee een enna 3 1 C7 CPU OVCIVWEW serrirerenrt inin roar EE nthe hen aobe mane eeaabes 3 2 Programming the C7 CPU ccc ne nes 3
256. ule time limits if you are not sure of the required times in the C7 C7 623 C7 624 Control Systems C79000 G7076 C624 01 3 11 Control with the C7 CPU 3 5 3 Parameter Block System Diagnostics Definition System diagnostics perform the acquisition evaluation and reporting of an System error within the automation device The cabling to the process is also Diagnostics included in the system diagnostics so that for example wire breakage can be recognized by the system diagnostics Example Examples for errors that can be identified evaluated and reported by the system diagnostics are e Errors in the user program e Failure of hardware modules e Breaks in wiring to transducers Parameter Block Table 3 8 lists the parameters of the parameter block System Diagnostics System Diagnostics Table 3 8 Parameter Block System Diagnostics Explanation Value Range Default Setting Extended diagnostics For Extended diagnostics buffer entries yes Yes No No buffer entries then the C7 CPU enters not only the error events into the diagnostics buffer but also all OB calls Transmission of diag For Transmission of diagnostics messages Yes No Yes nostics messages after yes then the C7 CPU transmits the cause of reversion to the STOP STOP via the multipoint MPI interface to the mode display system programming device OP This diagnostic message is the youngest entry in the di
257. umber 1 4 Parameter 2 LED image word 0 Parameter 3 LED image word 1 LED image a Area pointer Note The difference between this job and job 42 fetch LED area from C7 CPU is as follows With job 47 the LED image is also transferred resulting in a faster control of the LEDs The declared LED area may not be configured larger than 2DW Menu selection Parameter 1 Menu no in the standard menu l Message level 2 Main menu 3 Alarm messages 12 Print alarm messages 4 Event messages 14 Print event messages 5 Screens 6 Recipes 7 Statistical functions 18 Alarm statistics 19 Event statistics 8 PU functions 9 Special functions 24 System messages 23 Message texts 22 Settings 10 Password Parameter 2 Menu item number 0 first menu item 1 20 Other menu items Parameter 3 Delete event message buffer Delete alarm message buffer 51 Screen selection Parameter 1 n 6 Cursor lock O off 1 on n 7 Screen number 1 99 Parameter 2 Entry number 0 99 Parameter 3 Field number 0 8 C7 623 C7 624 Control Systems C79000 G7076 C624 01 0 48 49 C7 OP Functionality Standard Screens Control Jobs System Messages Table C 2 Control Jobs with Parameters Continued 52 Print screen Parameter 1 Screen number 1 99 format Byte Parameters 2 3 53 Select recipe Parameter 1 LB Cursor inhibit 0 off 1 on RB Recipe number 1 99 Parameters 2 Data record number 1 99 Parameters 3 LB Entry number
258. unting Backward Counting Exceeding the Threshold Frequency ZN 4 28 The counter calculates the value of the count from the count pulses forwards or backwards You can assign parameters with the STEP 7 Function Hardware configuration for e Count pulse is triggered by a rising or falling edge at the corresponding universal input e Whether counting should be forwards or backwards The counter calculates the actual value according to the following formula Actual value forward counter number of edges or Actual value backward counter start value number of edges Forward counting starts at zero or continued from the last counter value and until the selected comparison value is reached The start value after resetting the counter is always zero The comparision value is set by the user program Backward counting starts counting backwards from the selected start value or is continued from the last counter value until the value zero has been reached Start values are set by the application program The universal input counter counts count pulses up to a maximum frequency of 10 kHz A frequency filter is fitted to the inputs Warning If the actual frequency exceeds the threshold frequency of 10kHz then the correct function of the universal inputs can no longer be guaranteed since count pulses will be lost C7 623 C7 624 Control Systems C79000 G7076 C624 01 Stop and Start Counters Addressing Parame
259. ur system you must always assume the longest response time The shortest and longest response times will be considered below in order that you can form a picture of the variation range of the response time 3 21 Control with the C7 CPU Shortest Response Figure 3 3 illustrates the conditions for the shortest response time Time The state of the observed input changes immediately before reading the PII The change to the input signal will still be consid ered in the PII Operating system The change to the input signal will be processed here by the user program eb eb U C O Q V am The response of the user program to the change to the input signal is sent to the outputs here Operating system Figure 3 3 Shortest Response Time C7 623 C7 624 Control Systems 3 22 C79000 G7076 C624 01 Calculation C7 623 C7 624 Control Systems C79000 G7076 C624 01 Control with the C7 CPU The shortest response time comprises the following x process input image transfer time 1 x operating system run time x program processing time 1 x process output image transfer time Processing time for S7 timers Delay of the inputs and outputs The input delays are not marked in the diagram Depending on the module however you have to take into account the following delay times For digital inputs input delay times For digital outputs negligible delay times For analog inputs
260. ur within the programmable controller Examples of such errors include Program errors or module failures System errors can be indicated via LEDs or via the STEP 7 tool S7 Information A system function SFC is a Function integrated in the operating system of the CPU which can be called in the STEP 7 user program if required A system function block SFB is a gt Function Block integrated in the operating system of the CPU which can be called in the STEP 7 user program if required The system memory is a RAM integrated in the central processing unit The address areas for example timers counters memory marker bits and data areas required internally by the Operating System for example communication buffer are stored in the system memory It reports internal states in the C7 and in the controller C7 623 C7 624 Control Systems C79000 G7076 C624 01 Glossary 11 Glossary T Time of Day Interrupt Timers Tool Transfer Mode U User Memory User Program W Work Memory RAM Glossary 12 Interrupt Time of Day Timers are component parts of the gt C7 CPU Asynchronous to the user program the contents of the timer cells are automatically updated by the operating system By means of STEP 7 instructions the exact function of the timer cell for example on delay is determined and processing for example starting initiated STEP 7 Tool Operating mode of the C7 used
261. us 28 us 0 03 ms Adding the process image transfer time the Operating system run time and the user program execution time yields the time interval 0 2 ms 0 15 ms 0 87 ms 0 05 ms 1 5 ms 2 77 ms This time interval prolongs the execution time of the S7 timers 2 7 7 ms 10 ms x 0 03 ms 0 04 ms The cycle time is the sum of the times listed Cycle time 0 2 ms 0 15 ms 0 87 ms 0 04 ms 1 5 ms 2 8 ms C7 623 C7 624 Control Systems C79000 G7076 C624 01 3 27 Control with the C7 CPU 3 6 2 Calculation Example for the Response Time Response Time Example Configuration Parameters of the CPU Calculation 3 28 To recap the response time is a total of 2 X process input image transfer time 2 X process output image transfer time 2 X operating system run time 2 X program execution time Processing time for S7 timers Input and output delay times It is based on a C7 control system including I O It is based on the data from the calculation example for the cycle time The response time for the example is as follows Processing time for S7 timer 1 T Process image transfer time Process input image PII 2 0 2ms 0 4 ms Process output image PIQ 2 0 15ms 0 3 ms Operating system run time Cycle control 2 0 87ms 1 74 ms Rack monitoring 2 0 05ms ca 0 1 ms User program execution time 1 5 ms Ist subtotal As a time basis for calculatin
262. user password level Point of time at which the controller revokes a message The backup buffer backs up memory areas of the C7 without the need for a backup battery The memory backs up a programmable number of timers counters memory marker bits and data bytes the retentive timers counters memory marker bits and data bytes Data transmission rate bit s The C7 620 control system integrates an S7 300 CPU a COROS OP I O and an IM 360 interface module in one single unit C7 623 C7 624 Control Systems C79000 G7076 C624 01 C7 CPU C7 OP C7 1 0 Code Block Coming Message Communications Processor Complete Restart Compress Configuration Configuration Memory Glossary The C7 CPU 1s a central processing unit of the C7 range complete with processor arithmetic unit memory operating system and interfaces for programming devices The C7 CPU is independent of the gt C7 OP The C7 CPU has its own MPI address and is connected to the C7 OP via the MPI multipoint interface The C7 OP handles the OP functions of the C7 control system It is independent of the gt C7 CPU and continues to operate for example if the C7 CPU enters the STOP mode The C7 OP has its own MPI address and is connected to the C7 CPU via this interface It is via the MPI that the C7 OP is connected to a configuring computer programming device PC The C7 I O signal modules forms the interface between the process an
263. vel Parameters 2 3 24 Password logout branching in message level Parameters 1 2 3 C7 623 C7 624 Control Systems C 10 C79000 G7076 C624 01 C7 OP Functionality Standard Screens Control Jobs System Messages Table C 2 Control Jobs with Parameters Continued No Function Print shift log A mestas Print nproduction report Parameters 1 2 Print alarm message buffer Parameter 1 0 Print chronologically 1 Print together Parameters 2 3 Print event message buffer Parameter 1 0 Print chronologically 1 Print together Parameters 2 3 Overflow warning for event messages on off Parameter 1 0 Off 1 On Parameters 2 3 Overflow warning for alarm messages on off Parameter 1 Parameters 2 3 Transfer date time to C7 CPU If this job is submitted too often the C7 can get overloaded as two transfers per job are necessary Fetch LED area from C7 CPU Parameter 1 Block numbers Parameters 2 3 Fetch C7 CPU event message bit area Parameter 1 Block numbers Parameters 2 3 Fetch C7 CPU alarm message bit area Parameter 1 Block numbers Parameters 2 3 Fetch C7 CPU acknowledgement area Parameter 1 Block numbers Parameters 2 3 C7 623 C7 624 Control Systems C79000 G7076 C624 01 C 11 C7 OP Functionality Standard Screens Control Jobs System Messages Table C 2 Control Jobs with Parameters Continued 47 Fetch LED area from C7 CPU Parameter 1 LED image Area n
264. versal inputs 1 3 can be assigned as e Count input e Period time counter input 3 only e Frequency meter input 3 only The counter values are made available to the application program as 16 bit values and the frequency and period time counter as 24 bit values C7 623 C7 624 Control Systems 4 24 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output Table 4 18 lists the parameters for the above mentioned functions Table 4 18 Parameter Block of the Count Inputs Explanation Value Range Default Setting Count input 1 Define the count direction Forwards Forwards Backwards Select count edge to be used for counting Rising Rising Negative Counter can trigger a process alarm after reaching Yes No the comparison value when connting up or zero No transition when counting down Count input 2 Define the count direction Forwards Forwards Backwards Select count edge to be used for counting Rising Rising Negative Counter can trigger a process alarm after reaching the comparison value when connting up or zero transition when counting down Count input 3 Activate the count input and assignment of the Deactivated Deactivated counting type Counter Frequency counter Period time counter If counter activated then define the count Forwards Forwards Backwards If counter activated then define the edge to be used Rising Rising for counting Falling If counter activated then the counter can trigger a pr
265. ware Manual C7 623 C7 624 Control Systems 4 4 C79000 G7076 C624 01 Addressing Parameter Assignment and Function of the C7 Input Output 4 2 Addressing the C7 I O Overview The following section describes the addressing of the digital I O You require this information to be able to address the channels for the digital inputs and outputs in the application program Figure 4 2 shows the scheme for addressing the individual channels of the digital I O Digital inputs Bottom view of C7 Address 0 0 Address 0 1 Byte address Digital in outputs Start address Byte 0 Address 0 7 Address 1 0 Address 1 1 Byte address Digital in outputs Start address Byte 1 Address 1 7 Bit address Digital outputs Pin number Inputs marked with this hatching are not relevant to this example Figure 4 2 Digital Input Output Addresses C7 623 C7 624 Control Systems C79000 G7076 C624 01 4 5 Addressing Parameter Assignment and Function of the C7 Input Output 4 3 Use and Function of C7 Analog I O In this Section This section contains e Descriptions of the basic terminology for analog value processing e How to address and assign parameters to analog I O e How you allocate measurement ranges to analog input channels e The behavior of the individual analog input channels and the analog output channel 4 3 1 Addressing Analog I O Analog Function The ad
266. wledgment of alarm messages e Message number e Values of variables at the time of arrival or departure The C7 s message buffer can store up to 256 events Events are e The arrival of a message e The acknowledgment of a message alarm messages only e The departure of a message During configuration you can define a residual buffer area When this residual buffer space has been reached an automatic overflow warning is issued thatis EM residual buffer This overflow warning is a system message Messages continue to be inserted into the buffer even after the residual buffer space has been reached A sub category of the event message is the standby message The standby message is the event message number 0 It appears on the display when the C7 is operating at the message level and event or alarm messages are not waiting The standby message is stored in the firmware and contains the version and the device type SIMATIC C7 Vx xx C7 623 Figure 7 1 Standby Message C7 623 Depending on the configuration the standby message can be represented by other text It can contain the date and time but not variables C7 623 C7 624 Control Systems C79000 G7076 C624 01 Standard O I Functions 7 1 2 Acknowledging and Suppressing Alarm Messages Acknowledging Alarm Messages Acknowledgement Groups Suppressing Alarm Messages Activating the Suppress Function Alarm messages have to be acknowledged because
267. xt time the C7 runs up After alarm messages have been suppressed they are no longer stored in the alarm message buffer They are stored in the alarm message buffer only from the time that they first occur until the time that the display is suppressed Note The alarm message suppression function should be used only during the commissioning phase of the C7 C7 623 C7 624 Control Systems C79000 G7076 C624 01 7 5 Standard O I Functions 7 1 3 System Messages Overview System messages indicate operating states within the C7 that is they draw your attention to malfunctions or a breakdown in communication Display of System This type of message has top display priority If a fault occurs with the C7 Messages the active event message or alarm message is removed from the display and a system message is issued in its place Serious and System messages are classified as either serious or non serious system Non serious messages System Messages e Serious system messages This is based on a fault which can only be rectified by a cold or warm restart of the C7 e Non serious system messages All other errors generate non serious system messages that is when a print job has been initiated but a printer is not connected to the C7 Display of a non serious system message can also be canceled automatically when a specific configurable display time has expired A list of possible system messages and their explanations can be found

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