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1. C7 IM361 CP CP T IE Sil 7S gja o o MPI C7 address MPI adar MPI addr 1 for C7 OP C7 CPU 1 C7 CPU 2 2 for C7 CPU Figure 3 1 Automatic Assignment of MPI Addresses for CPs and FMs Please note the following characteristics in the MPI network Warning Loss of data packets in the MPI network If you connect another CPU to the MPI network during operation you may lose GD packets and increase the scan cycle time Remedy 1 Switch off the node to be connected 2 Connect the node to the MPI network 3 Switch on the node A C7 CPU can communicate with up to four further CPUs They can exchange global data For detailed information on global data please refer to 231 Sending and receiving global data occurs in GD circles Each C7 CPU may participate in up to four different GD circles C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Configuring MPI Networks and PROFIBUS DP Networks 3 2 Rules for Configuring a Network Overview In this section you will be shown e how to configure an MPI network e which rules you must observe The rules for an MPI network and an L2 network are identical Rules You must observe the foll
2. Example indicates the maximum possible distances in an MPI network S7 300 S7 300 pG A c7 oP fT a Ul 3 RS485 fee TE 7 repeater ce a a aa 3 4 ve 1 e max 13 1000m 3 a D E gt 8 E max 50 m sc J S7 300 S7 300 i 4 RS 485 j J TE repeater 11 max 50 m Terminating resistance switched on Programming device connected for maintenance purposes via spur line 0 x MPI addresses of the nodes Figure 3 9 Cable Lengths in an MPI Network C7 626 C7 626 DP Control Systems 3 14 C79000 G7076 C626 01 Configuring MPI Networks and PROFIBUS DP Networks 3 4 Network Components Purpose You require network components Table 3 5 Network Components for setting up a network PROFIBUS bus cable for connecting a node to the Bus connector network for amplifying the signal RS 485 repeater for linking segments for converting the signal to Optical Link Module fiber optic transmission PROFIBUS DP network only for connecting programming Programming device cables devices OPs to the network spur lines PROFIBUS Bus We offer the following PROFIBUS bus ca
3. PG Only connected via spur line at startup or during service work with default MPI address Connected to the MPI network afterwards with default MPI adress The CP has an L2 address as well as the MPI address here address 10 MPI addresses of the nodes Terminating resistance switched on Figure 3 5 Example of an MPI Network C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 3 9 Configuring MPI Networks and PROFIBUS DP Networks Figure 3 6 shows the main setup of a PROFIBUS DP network according to Example of a PROFIBUS DP the rules listed above Network C7 626 DP as DP master ET 200M ET 200M ET 200M ET 200M S5 95U ll PG ET 200M i ET 200B ET 200B ET 200B g u 1 Default L2 address for DP master Only connected to MPI via spur line at startup or during service work with MPI address 0 0 x L2 addresses of the nodes 0 x MPI addresses of the nodes Terminating resistance switched on Figure 3 6 Example of
4. Alx X lt Alx M Isolated Alx X ADC Lo transducers lt A M gic C7 CPU Vom y MANA C7 z Ak V IL ISO O M T Ground bus Figure 6 1 Connecting Isolated Transducers to an Isolated Analog Input Module The non isolated transducers are connected on site with the ground potential Depending on local conditions or interference potential differences static or dynamic can occur between the locally distributed measuring points To prevent these potential differences you must provide equipotential bonding conductors between the measured value points In addition potential differences Vcy static or dynamic can arise between the measuring lines AIx M of the input channels and the reference point of the measuring circuit Mana However these potential differences must not exceed the permitted value Where it is possible that the permissible value for Vcm might be exceeded or where you cannot determine the difference in potential accurately you must connect AIx M to Mana Figure 6 2 shows the principle of connecting non isolated transducers to an isolated analog input module C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 C7 Analog Input Output f Alx X Non isolated Alx M transducers L Alx X
5. AO U Lo DAC C7 CPU gic RL AO M ae gt C7 L 98 Viso M LO Ground bus Figure 6 6 2 Wire Connection of Loads to a Voltage Output of an Analog Output Module C7 626 C7 626 DP Control Systems 6 8 C79000 G7076 C626 01 C7 Analog Input Output 6 3 Analog Input Function Overview Available Measurement Types Measuring Ranges Wire Break Check Measuring Ranges for 4 Wire Transducers This section contains e The characteristics of the analog input module e The technical specifications of the analog input module You will learn e How to start up the analog input module e The measuring ranges provided by the analog input module e The parameters you can use to influence the characteristics of the analog input module The following measurement types are available on the analog input module e Voltage measurement e Current measurement The measuring ranges are e Voltage 10 V e Current 20 mA 4 to 20 mA For the current range 4 to 20 mA a current of lt 1 6 mA is interpreted per software as a wire break see Volume 2 Section 5 2 Measuring ranges for current measurement with 4 wire transducers e 20mA e 4to20mA C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 6 9 C7 Analog Input Output 6 3 1 Characteristics and Technical Specifications of the Analog Input Module Cha
6. Galvanic All gt isolation e ADC i Logic r Internal Al4 aN supply oj Figure 6 10 Block Diagram of the Analog Input Module Technical Specifications Specific Data of the Analog Input Function Analog Value Generation Number of inputs Measurement principle Momentary value Cable length shielded e Basic conversion time 2 5 ms Voltages Currents Potentials Resolution in bit incl sign 12 incl overrange Nominal load voltage L 24 VDC e Polarity reversal protection Yes Transition frequency 132 kHz input filter Voltage supply to the transducers Measurement ranges V A at different pins gt e Short circuit protection Yes Voltage a sos Galvanic isolation Yes Current 20 20 mA 4 20 mA nalog VO to electronics Measurement tolerance 1 of the end value Permissible potential difference e Between reference 2 5 VDC potential of inputs and Mana Vcm if signal SON 500 VDC e Insulation resistance C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 6 13 C7 Analog Input Output Interference voltage suppression for f n X f1 1 f1 interference frequencies Interference Suppression Error Limits Status Interrupts Diagnostics Interrupts e Interrupt cycle Yes can be assigned parameters 6 14 gt 70 dB e Diagnostic interrupt Yes can be assigned Commo
7. og 1 1 Ww 1 The bus cable can be connected on the right or on the left Figure 3 15 Connecting the Bus Cable to the Bus Connector 6ES7 972 0B 20 6 Screw tight the clamp type hinge cover Make sure that the cable shielding is bare under the shielding clip 7 Tighten the green and red wires in the screw type terminal 8 Close the cover of the bus connector and 9 Screw the housing back on C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 3 21 Configuring MPI Networks and PROFIBUS DP Networks 3 5 3 Bus Connector 6ES7 972 0B 10 0XA0 Appearance Table 3 9 shows the bus connectors 6ES7 972 0B 10 OXA0 Table 3 9 Description and Function of the Bus Connectors 6ES7 972 0B 10 OXAO Appearance of the Bus Connectors A with PG type connector without PG type connector Connection to the MPI SIEMENS p a SIEMENS P PROFIBUS DP On interface 9 pin sub D connector Connection for D the PROFIBUS ae bus cable M i Xu Terminating resistance Interface for 9 YV me V PG OP Screws for fixing to the node Assem
8. Figure 3 17 Connecting the Bus Cable to the Bus Connector 6ES7 972 0B 10 0XA0 8 Screw the housing back on Make sure that the cable shielding is bare under the shielding clip C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 3 23 Configuring MPI Networks and PROFIBUS DP Networks 3 5 4 Plugging the Bus Connector into the Module Connecting the Proceed as follows to connect the bus connector Bus Connector f 1 Plug the bus connector into the module 2 Screw the bus connector to the module 3 Ifthe bus connector order number 6ES7 is at the start or end of a segment you must switch on the terminating resistance switch position ON see Figure 3 18 Make sure that the stations with the terminating resistance are always supplied with power during power up and during operation Terminating resistance p on Terminating resistance on switched on not switched on Figure 3 18 Bus Connectors 6ES7 Terminating Resistance Switched On and Not Switched On Removing the Bus You can remove the bus connector with a looped through bus cable from Connector the PROFIBUS DP interface at any time without interrupting data traffic on the bus A Warning Possibility of interrupting data traffic on the bus A bus segment must always be terminated at both ends by the terminating resistance This is not the case if the last slave with bus connector is not supplied with power Since
9. Galvanic isolation DAC AO1 Block diagram Figure 6 12 Technical Specifications Specific Data of the Analog Output Number of outputs Cable length shielded Voltages Currents Potentials Yes 500 VDC Galvanic isolation Insulation resistance Measurement ranges V A at different pins gt no coding pin 10V 20 mA 4 20 mA Voltage Current Block Diagram of the Analog Output Function Interference Suppression Error Limits Measuring tolerance 1 of end value Basic error limit operational limit at 25 C referred to output range e Voltage 1 e Current 1 Output ripple referred to 0 05 output range Status Interrupts Diagnostics Analog Value Generation Resolution including overrange 10 V 20 mA 4 to 20 mA 12 bits incl sign Conversion time max 0 8 ms Settling time 0 1 ms 3 3 ms 0 5 ms e For resistive load e For capacitive load e For inductive load Substitute value injectable Yes can be assigned parameters C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Interrupts e Diagnostic interrupt Yes can be assigned parameters Diagnostic functions Yes can be assigned parameters e Diagnostic informationcan Yes group error fault be read 6 17 C7 Analog Input Output Data for Selecting an Actuator Output ranges nom
10. Softkey icons for selecting e m 2 H DE standard pictures O Figure 2 13 Basic C7 Picture Example p 4 Confirm the displayed message by pressing ESC 2 25 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Installing and Preparing the C7 2 11 2 Without a Loaded Configuration in the C7 OP Loading the Configuration Setting the C7 CPU Operating Modes Menu 2 26 Load the basic configuration so that the explanations in this manual relate to this configuration Note When starting up without a configuration you must load a configuration via the V 24 serial interface Proceed as follows 1 Connect the V 24 serial interface of the C7 OP see Figure 2 8 to the programming device PC via a programming device PC standard cable 2 Switch on the C7 power supply As no configuration is loaded the C7 automatically goes into transfer mode and waits for a data transfer 3 Transfer the configuration from the programming device PC to the C7 OP The firmware of the C7 OP is automatically transferred as well After a successful transfer the C7 OP is restarted e Message 339 Startup complete can be removed by pressing and the basic screen is then displayed ESC 339 Startup complete Basic C7 626 picture Figure 2 14 Basic C7 Picture with Message 339 In the C7 CPU Operating Modes menu you can select ei
11. With unshielded signal lines with protective element lightning conductor KT type AD 24 V from the Dehn company Noise immunity against discharge 6kV discharge on contact in accordance with IEC 801 2 TEC 1000 4 2 ESD 8kV atmospheric discharge in accordance with IEC 801 2 IEC 1000 4 2 ESD Immunity to high frequency 10V m with 80 amplitude modulation with 1 kHz radiation 10kHz 80MHz in accordance with EN 50 141 10V m with 80 amplitude modulation with 1 kHz 80kHz 1GHz in accordance with EN 50 140 10V m pulse modulated 50 c d f with 900 MHz to EN 50 140 Climatic conditions Temperature Tested in accordance with DIN IEC 68 2 1 DIN IEC 68 2 2 Operating 0 C to 45 C for horizontal installation 0 C to 50 C for vertical installation Note With forced air ventilation a maximum of 45 C can be obtained if installed horizontally Non operating 20 C to 70 C Relative humidity Tested in accordance with DIN IEC 68 2 3 Operating 5 to 95 at 25 C no condensation Non operating 5 to 95 at 25 C no condensation Atmospheric pressure Operating 1080 795 hPa 1000m to 2000 m Non operating 1080 660 hPa a 1000m to 3500 m C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 A 3 General Technical Specifications Table A 1 Technical Specifications of the C7 Criterion Technical Specifications Mechanical environmental conditions Vibration Operat
12. Table 6 1 Channels of the Analog Input Module Pin No Value Channel AIl U Voltage input Channel 1 AIl I Current input All AI1 M_ Reference potential AI2 U Voltage input Channel 2 AI2 I Current input AI2 AI2 M Reference potential AJ3 U Voltage input Channel 3 AJ3 I Current input AB AI3 M Reference potential AI4 U Voltage input Channel 4 AI4 I Current input AI4 AI4 M Reference potential Connection of an Only one analog sensor can be connected to an analog input channel Analog Input Voltage Measurement Voltageo oO Current o One channel voltage measurement Reference potentialo O Figure 6 8 Connection of a Channel for Voltage Measurement Current Measurement When connecting a current measurement channel the voltage pin and the current pin are to be jumpered Voltage Oo ae Current o One channel current measurement Reference potentialO O Figure 6 9 Connection of a Channel for Current Measurement C7 626 C7 626 DP Control Systems 6 12 C79000 G7076 C626 01 C7 Analog Input Output Block Diagram Figure 6 10 shows the block diagram of the analog input module The input resistances are 140 Q 125 mW You will find detailed technical specifications of the analog input module below
13. 7 S A A BE Afio B 1 Guidelines for Handling Electrostatically Sensitive Devices B 1 What is ESD Definition All electronic modules are equipped with large scale integrated ICs or components Due to their design these electronic elements are very sensitive to overvoltages and thus to any electrostatic discharge These Electrostatically Sensitive Devices are commonly referred to by the abbreviation ESD Electrostatically sensitive devices are labelled with the following symbol A N Caution Electrostatically sensitive devices are subject to voltages that are far below the voltage values that can still be perceived by human beings These voltages are present if you touch a component or module without previously being electrostatically discharged In most cases the damage caused by an overvoltage is not immediately noticeable and results in total damage only after a prolonged period of operation C7 626 C7 626 DP Control Systems B 2 C79000 G7076 C626 01 Guidelines for Handling Electrostatically Sensitive Devices B 2 Electrostatic Charging of Objects and Persons Electrostatic Charging Limits for Perceiving Electrostatic Discharges Any object with no conductive connection to the electrical potential of its surroundings can be charged electrostatically In this way voltages up to 15 000 V can build up whereas minor charges that is up to 100 V are not relevant Examples e Plastic covers
14. SIMATIC C7 626 S p DCSV re m FRCR RUN S a ho Ye Ye Pe Piso a ES 5 m lt A lt H gt Gobo mV Saooo Figure 1 1 C7 626 or C7 626 DP C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Product Overview Performance With the C7 devices you can Range Load and run user programs on the C7 CPU e Connect the C7 626 DP to the PROFIBUS DP via an integrated DP interface e Process digital and analog signals using the integrated I Os of the C7 e Use interrupt inputs and counters for frequency measurement period duration measurement etc e Load and use O I applications that you have created using the ProTool configuring tool e Use these configurations to monitor and intervene in the process you are controlling with the user program e Output data to a printer C7 Units The C7 has two units that work independently of each other and can communicate with each other via the internally looped C7 multipoint interface MPI e C7 CPU e C7 OP These components will be referred to explicitly in the manuals as required Connectable In addition to the connections to the process you can also connect different Components components to the C7 The most important components and their functions of a C7 are listed in Table 1 1 Table 1 1 Connectable Components of a C7 Components Function Illustration Interface module IM361 connec
15. C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 B 5 Guidelines for Handling Electrostatically Sensitive Devices B 4 Taking Measurements and Working on ESD Modules Use Grounded Measurements may be taken on electrostatically sensitive devices only if Measuring Devices ee Only 9 the measuring device is grounded for example via protective conductor or e the tip of the isolated measuring device has previously been discharged for example by briefly touching grounded metal parts B 5 Packing Electrostatically Sensitive Devices Using Conductive Generally use conductive materials for packing modules without casing and Material for components You may also use metal clad plastic boxes or metal containers Packing Modules Always store ESD modules in conductive packing material without Casing Cover Batteries When packing modules incorporating batteries cover the battery connections with insulating tape or insulating material to avoid short circuiting of the battery Remove the battery if possible C7 626 C7 626 DP Control Systems B 6 C79000 G7076 C626 01 Glossary A Analog I O Assigning Parameters Automation System B Back Up Battery Back Up Memory Bus C7 620 The analog I O converts analog process values for example temperature into digital values that can be processed by the C7 CPU or converts digital values into analog manipulated variables Assigning parameters means setting th
16. Outgoing cable vertical a 5 3 SIEMENS SIEMENS SIEMENS without PG type connector with PG type connector Outgoing cable angular wo 1O AB y5 AB us re ire AB 10 AB O y N oO oO o 2 F mM N N i Noa without PG type connector with PG type connector Figure 3 14 Length of Stripped Insulation for Connecting to the Bus Connector 6ES7 972 0B 20 2 Open the housing of the bus connector by loosening the housing screw and swinging the cover upward 3 Remove the clamp type hinge cover 4 The bus connector 6ES7 972 0B 20 is supplied for an angular outgoing cable If a vertical outgoing cable arrangement is required Loosen the screw at the left side of the hinge Slightly lift the hinge Turn the hinge inward To fix the hinge tighten the screw on the left C7 626 C7 626 DP Control Systems 3 20 C79000 G7076 C626 01 Configuring MPI Networks and PROFIBUS DP Networks 5 Insert the green and red wires into the screw type terminal block as shown in Figure 3 15 Make sure that you always connect the same wires at the same terminal A or B for example always connect the green wire to terminal A and the red wire to terminal B Bus cable connection for first Bus cable connection for all and last stations on the other stations on the bus bus W
17. Table 2 7 Cables for Connecting to the C7 Connecting Cable Length Special Features Illustration Connection Between MPI Programming device cable 5m C7 lt gt PG PC C7 lt OP C7 lt gt S7 300 ee C7 lt gt S7 400 PROFIBUS bus cable User must make C7 lt gt PG PC interior cable own cable nt mm C7 lt gt OP direct buried cable C7 lt C7 and bus connectors C7 lt 87 300 without PG type connector C7 lt 87 400 with PG type connector and PROFIBUS bus terminal RS 485 with 1 5 m cable with 3 m cable with PG type connector and 1 5 m cable o V 24 serial interface Serial interface printer cable See Catalog C7 Printer For Siemens printers ST80 1 C7 lt gt PG PC DR210 211 2303 231 N IM361 IM361 cable C7 lt additional T O S7 300 C7 I O connections Connectors for C7 I O 16 pin 2000000000000000 C7 lt gt external 8 pin sensors C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 2 15 Installing and Preparing the C7 2 6 Setup Guidelines for Interference Proof Installation Introduction Use and Installation of Interference Proof Cables Interference Proof Hardware Setup Cabinet Setup 2 16 An automation system must be shielded to prevent interference When a system is poorly grounded or not shielded low frequency and high frequency interference signals can penetrate the internal bus of the PLC and cause malfunctions Interference signals can also be caused
18. When limit value is reached When 0 is reached In the program Max 1 Counting between fixed time units from two positive edges 0 to 16777215 8 395 s or 0 119 Hz Max 1 Counting of pulses within a time period 0 to 16777215 0 1s 10s can be set 10 kHz limited by input filter Input voltage e Nominal voltage e For 1 signal e For 0 signal Input current e 6At 1 signal Input delay time e Programmable e At 0 to 1 e At 1 to 0 Input characteristic Type of input in accordance with IEC 1131 Input current e At 1 signal 24 VDC from 11 to 30 V from 3 to 5 V from 2 to 8 mA No approx 0 01 ms approx 0 01 ms In accordance with IEC 1131 Part 2 Type 2 From 6 to 11 5 mA C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Maintenance Summary of You Will Find Sections Changing and Disposing of the Back Up Battery 82 Replacing the C7 E C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 8 1 Maintenance 8 1 Changing and Disposing of the Back Up Battery Change During Power On Only Changing the Back Up Battery in the C7 You must always change the back up battery during power on This prevents any data loss in the internal user memory while changing the battery Note The data in the internal user memory will be lost if you change the back up battery during power off Change the back up batte
19. e One clock in the C7 CPU e One clock in the C7 OP The clock in the C7 CPU is an integral real time clock hardware clock This clock is independent of the clock in the C7 OP The clock is supplied with the following value set DT 1994 01 01 00 00 00 As an integrated clock the C7 CPU clock can also function as the master clock within the C7 I O configuration see also Section 3 4 6 in Volume 2 You can set and read the clock in the following ways e With the programming device PG using STEP 7 or e In the user program with SFCO SET_CLK With SFC1 READ_CLK you can read the current time of day see the reference manual 235 The C7 must always be backed up with a battery The clocks in the C7 continue to run during power off The clock in the C7 OP is independent of the clock in the C7 CPU The clock is supplied with the following value set 01 01 94 00 00 The clock time can be set e Via the user program and interface block or e On line by operator input if the special display Clock Time Date has been configured and selected see Volume 2 Section 6 7 1 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Installing and Preparing the C7 Run Time Meter The C7 CPU provides you with a run time meter You can use this meter to keep count of the operating hours of the C7 CPU or of any controlled equipment You program the run time meter in the user program with the SFCs 2 S
20. 2 6 Setup Guidelines for Interference Proof Installation 2 16 2 7 Connecting Shielded Cables 0 00 cece eee eee eee 2 18 2 8 Keying Connectors vasita conde ow eE Ee EE a dA E RA Aa AEE EA dad 2 19 2 9 Arrangement of Additional S7 300 Modules 000 eee ee 2 10 C7 GIOCKS ou dict Laee Made hate hives ober baid cided heme axdeched 2 11 Stating Up s o0 esc k womb eid aw eaae a a a a Ea a a iaa i died 2 11 1 With a Loaded Configuration in the C7 OP 0000 eee ee eee 2 11 2 Without a Loaded Configuration in the C7 OP 0000005 2 12 Status and Error LEDs on the C7 0 cece eee eee 3 Configuring MPI Networks and PROFIBUS DP Networks 3 1 Setting Up a Network sussnasunaeunn anuna an nets 3 2 Rules for Configuring a Network 0000 e eee 3 3 Cable Lengths 000 cece cece t eee 3 4 Network Components 00 c cece eee teen eee 3 5 Bus Connectors 00 c cc een eens 3 5 1 PROFIBUS Bus Connector 2 000 cece eee nets 3 5 2 Bus Connector 6ES7 972 0B 20 OXA0 6 e eee eee 3 5 3 Bus Connector 6ES7 972 0B 10 OXA0 2 ec eee eee 3 5 4 Plugging the Bus Connector into the Module 00005 3 6 Starting Up the PROFIBUS DP 00 c cece eee eee 4 Connecting a Programming Device PC to a C7 cece eee eee 4 1 Connecting a Programming Device PC to a C7 002 eee e
21. 392 EEC regulates requirements relating to Directive machinery A machine is defined here as an assembly of linked parts or 89 392 EEC components see also EN 292 1 Paragraph 3 1 SIMATIC is part of the electrical equipment of a machine and must therefore be included by the machine manufacturer in the declaration of conformity procedure Electrical The EN 60204 1 standard Safety of Machinery Electrical Equipment of Equipment of Machines Part 1 Specification for General Requirements applies for electrical Machinery in equipment of machinery Accordance with f f ane 4 cow The table below is designed to help you with the declaration of conformity and to show which criteria apply to SIMATIC according to EN 60204 1 as of June 1993 EN 60204 1 Subject Criterion Remarks Paragraph 4 General requirements Requirements are met if the devices are mounted installed in accordance with the installation guidelines Please observe the explanations on the previous pages Paragraph 11 2 Digital input output Requirements are met interfaces Paragraph 12 3 Programmable equipment Requirements are met if the devices for protection of memory contents against change by unauthorized persons are installed in locked cabinets Paragraph 20 4 Voltage tests Requirements are met C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 General Technical Specifications A 4 Transport and Storage Conditions for Back Up Batteries Transp
22. ADC Q lt Alx M gic C7 CPU Vom Man C7 Viso K L 5 M Ground bus Figure 6 2 Connection of Non Isolated Transducers to an Analog Input Module C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 C7 Analog Input Output 6 1 1 Connecting Voltage and Current Transducers Abbreviations and Mnemonics Connecting Voltage Transducers Connecting Current Transducers as 4 Wire Transducers The abbreviations and mnemonics used in Figures 6 3 to 6 4 have the following meanings AIx X Measuring line AIx I or AIx U AIx M Reference potential of the measuring line Mana Reference potential of the analog measuring circuit Figure 6 3 shows the connection of voltage transducers to an isolated analog input Alx U Q Alx M Alx U ADC 7 _ Lo ___ Alx M o gic C7 CPU MANA Figure 6 3 Connecting Voltage Transducers to an Isolated Analog Input 4 wire transducers possess a separate voltage supply Figure 6 4 shows the connection of current transducers as 4 wire transducers to a non isolated analog input module Transducers e g pressure gauges Alx U no __ P TE Alx M eg e Au ADe A gic foreu 2 peeks ic P 32 M Alx M g 5 m Mana L M Figure 6 4 Connecting 4 Wire Transducers to a Non Isolated Analog Input
23. I O fault error in the internal I O functions You must use a programming device and display the contents of the diagnostic buffer to determine the exact nature of the error fault BAF red Battery fault Lights up if the battery e has too little voltage e is defective e is missing DC5V green 5 VDC supply for C7 Lights up if the internal 5 V voltage is O K FRCE yellow Reserved RUN green Operating mode of Lights up if the C7 is executing a user program the C7 CPU Flashes 2 Hz during C7 startup the STOP LED also lights up after the STOP LED goes out the outputs are enabled STOP yellow Operating mode of Lights up if the C7 is not executing a user program the C7 CPU Flashes at 1 second intervals if the CPU requests a memory reset C7 626 C7 626 DP Control Systems 2 28 C79000 G7076 C626 01 Configuring MPI Networks and PROFIBUS DP Networks MPI PROFIBUS DP SINEC L2 DP PROFIBUS DP The Same Setup Setting up the Communication Summary of Sections You can e integrate the C7 626 via the MPI into an MPI network e integrate the C7 626 DP via the MPI into an MPI network or set up a PROFIBUS DP network via the PROFIBUS DP interface SINEC L2 DP is the PROFIBUS DP for SIEMENS devices The setup of an MPI network is basically the same as the setup of a PROFIBUS DP network That is the same setup rules apply and you use the same components for setting up both networks There ar
24. Module C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 6 5 C7 Analog Input Output 6 2 Connecting Loads Actuators to the Analog Output Overview You can provide loads actuators with current or voltage using the analog output Cables for Analog To reduce electrical interference you should use twisted pair shielded cables Signals for the analog signals The shield of the analog signal cables should be grounded at both cable ends If there are potential differences between the cable ends an equipotential bonding current can flow over the shield This can interfere with the analog signals In such a case you should ground the shield at one end of the cable only Isolated Analog The analog output is isolated and so there is no electrical connection between Output the reference point of the AO M analog circuit and the M terminal of the C7 A potential difference Vrso can occur between the reference point of the analog circuit Mana and the M terminal of the C7 Make sure that Viso does not exceed the permissible value Where it is possible that the permissible value might be exceeded see technical specifications establish a connection between the AO M terminal and the M terminal of the C7 Abbreviations and The abbreviations and mnemonics in the Figures 6 5 tq 6 6 h ave the Mnemonics following meanings AO I Analog output current AO U Analog output voltage RL Load actuator AO M Ground terminal reference potentia
25. Programming Manual Description of all integral functions of the CPUs Description of the CPU internal registers System Software for Detailed description of S7 300 S7 400 System and e all standard functions FCs integrated into STEP 7 Standard Functions Reference Manual e all system functions SFCs integrated into the operating system of a CPU Standard Software for S7 Provides information on converting STEP 5 programs to STEP 7 Converting S5 Programs Working with the S5 S7 Converter Manual Rules for conversion Using converted STEP 5 standard function blocks in STEP 7 Master Index e Master index for all the manuals in the documentation package C7 626 C7 626 DP Control Systems vI C79000 G7076 C626 01 Preface Other References You will find a list of further information sources on the subject of the S7 300 and other programmable controllers in Appendix D of Volume 2 of this manual Table 1 2 Additional Manuals System Software for S7 300 Provides basic information on designing STEP 7 programs and S7 400 Program Design e Programming Manual Instructions for the efficient solution of programming tasks with the programming device PC and STEP 7 e How the CPUs operate for example memory concept I O access addressing blocks data types data management Description of STEP 7 data management e Using STEP 7 data types e Using linear and structured programming with programming examples e Using blo
26. and field devices are thus connected to the automation system via the field bus PROFIBUS DP and addressed as local I Os The DP transmission rate of the C7 626 DP can be set up to 12 Mbps The following table shows which nodes you can use to set up a network MPI PROFIBUS DP only with C7 626 DP Programming devices PG PC Programming device PG PC Operator interface devices OP S7 300 M7 300 S7 400 M7 400 Additional C7 devices FMs CPs Operator interface devices OP DP masters C7 CPU DP Additional DP masters DP slaves Convention all devices that you connect in an MPI network are called nodes Note that the C7 occupies two MPI addresses and therefore already consists internally of two nodes A segment is a bus line between two terminating resistances A segment can contain up to 32 nodes C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Configuring MPI Networks and PROFIBUS DP Networks Number of Nodes MPI L2 Addresses Default MPI Addresses on the C7 You can connect up to 126 addressable nodes via the MPI To enable all nodes to communicate with each other you must assign them an address e In an MPI network an MPI address and a highest MPI address e Ina PROFIBUS DP network an L2 address and a highest L2 address You must assign these MPI L2 addresses to each node individually with the programming device before networking also with some
27. for DO 1 0 DQ1 7 V 24 Serial Interface Pin Assignments for the V 24 Serial Interface for printer etc Pin No Explanation C7 M reference potential RxD TxD CTS C7 M reference potential 5 gt TZ olo x alal olrnrli N fon gi Oo z n 12 C7 M reference potential Bo 15 C7 M reference potential C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 2 13 Installing and Preparing the C7 Multipoint interface MPI Functional earth DP 24 VDC input Autor Figure 2 9 C7 626 DP View with MPI DP and C7 Power Supply MPI PROFIBUS DP Interface 24 VDC input C7 power supply Pin No Explanation Explanation Ne em 4 rtsas 4 AE authorization input ground 5 MSV 6 PSV 7 P24V 8 RS485 line A 9 NC Functional Earth Connect the functional earth terminal rd see Figure 2 9 to the cabinet ground taking the shortest route and using a cable lug and a cable with a minimum cross section of 4 mm C7 626 C7 626 DP Control Systems 2 14 C79000 G7076 C626 01 Installing and Preparing the C7 C7 Device Connections You can use the following cables for connecting the C7 to other devices
28. permissible value Where it is possible that the permissible value for Vow might be exceeded or where you cannot determine the difference in potential accurately you must connect AIx M to Mana Please observe this also for the unused inputs Abbreviations The abbreviations used in Figures 6 th 6 3 have the following meanings AIx X Measuring line AIx U or AIx I AIx M Reference potential of the measuring line Mana Reference potential of the analog measuring circuit M Ground terminal of the C7 Vc Potential difference between inputs and Mana Viso Potential difference between Mana and the M terminal of the C7 C7 626 C7 626 DP Control Systems 6 2 C79000 G7076 C626 01 C7 Analog Input Output Isolated Transducers Non lsolated Transducers The isolated transducers are not connected with the local ground potential They can be operated free of potential Local conditions or interference can cause potential differences Vcyp static or dynamic to occur between the measuring lines M of the input channels and the reference point of the measuring circuit Mana However this potential difference must not exceed the permissible value Where it is possible that the permissible value for Voy might be exceeded or where you cannot determine the difference in potential accurately you must connect AIx M to Mana Figure 6 1 shows the principle of connecting isolated transducers to an isolated analog input module
29. screw Lift fixing bracket in Figure 2 6 Push fixing bracket out of guide in Figure 2 6 Figure 2 6 Loosening the Fixing Bracket C7 626 C7 626 DP Control Systems 2 8 C79000 G7076 C626 01 Installing and Preparing the C7 2 4 Arranging the C7 in the Mechanical Environment Arranging the C7 When installing a C7 please note the following e The control panel may be 1 to 4 mm thick Make sure the sealing ring fits tightly in all places e A gap of 50 to 70 mm from a housing wall must be observed on the sides of the C7 as shown in Figure 2 7 e The sealing ring on the frontplate must sit perfectly e The tabs of the insertion strips must not be caught e The C7 must be protected from direct sunlight lt 70 gt lt 70 gt Figure 2 7 Gap Dimensions to be Observed when Installing the C7 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 2 9 Installing and Preparing the C7 2 5 Electrical Installation and Connector Pin Assignment Introduction The plug and socket connectors interfaces required for connecting the various inputs and outputs of the C7 are provided Analog inputs Analog outputs AUX digital inputs IM g p port Digital inputs top Digita
30. slots and addresses for example signal modules The configuration memory is a flash memory integrated in the C7 OP It is used for storing the configuration data A cyclic interrupt is generated periodically by the C7 CPU according to a time grid which can be assigned parameters It triggers execution of the relevant organization block C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Glossary D Diagnostics Diagnostic Buffer Diagnostic Events Diagnostic Functions Diagnostic Interrupt Equipotential Bonding Error Display Flash EPROM Diagnostic Functions gt System Diagnostics The diagnostic buffer is a buffered memory area in the C7 CPU in which diagnostic events are stored in order of occurrence Diagnostic events include errors in a digital function in the C7 system faults in the C7 caused for example by programming errors or operating mode transitions The diagnostic functions comprise the complete scope of system diagnostics and the detection evaluation and signaling of faults within the C7 Modules with diagnostics capability signal system errors to the C7 CPU by means of diagnostic interrupts Electrical connection equipotential bonding conductor that brings the bodies of electrical resources to the same or approximately the same potential as foreign conducting bodies in order to prevent interference or hazardous voltages arising between the bodies The error displ
31. to be taken for modules that are not protected against accidental contact e Touch electrostatically sensitive devices only if you wear a wristband complying with ESD specifications or if you use special ESD footwear or ground straps when walking on an ESD floor e Persons working on electronic devices should first discharge their bodies by touching grounded metallic parts for example bare metal parts of switchgear cabinets water pipes etc e Protect the modules against contact with chargeable and highly insulating materials such as plastic foils insulating table tops or clothes made of plastic fibers e Place electrostatically sensitive devices only on conductive surfaces Tables with ESD surface Conductive ESD foam plastic ESD foam plastic is mostly colored black ESD bags e Avoid direct contact of electrostatically sensitive devices with visual display units monitors or TV sets minimum distance to screen gt 10 cm C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Guidelines for Handling Electrostatically Sensitive Devices ESD Precautions The following figure again illustrates the precautions for handling electrostatically sensitive devices rT oaQao9 e E Conductive flooring material Table with conductive grounded surface ESD footwear ESD smock Grounded ESD wristband Ground connection of switchgear cabinet Grounded chair
32. upto 5000 V e Plastic cups upto 5000 V e Plastic bound books and notebooks upto 8000 V e Desoldering device with plastic parts upto 8000 V e Walking on plastic flooring up to 12000 V e Sitting on a padded chair up to 15 000 V e Walking on a carpet synthetic up to 15 000 V An electrostatic discharge is e perceptible from 3500 V e audible from 4500 V e visible from 5000 V A fraction of these voltages is capable of destroying or damaging electronic devices Carefully note and apply the protective measures described below to protect and prolong the life of your modules and components C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 B 3 Guidelines for Handling Electrostatically Sensitive Devices B 3 General Protective Measures Against Electrostatic Discharge Damage Keep Plastics Away Provide Sufficient Grounding Avoid any Contact Additional Precautions for Modules without Housing B 4 Keep plastics away from sensitive devices Most plastic materials have a tendency to build up electrostatic charges easily Make sure that the personnel working surfaces and packaging are sufficiently grounded when handling electrostatically sensitive devices If possible avoid any contact with electrostatically sensitive devices Hold modules without touching the pins of components or printed conductors In this way the discharged energy cannot affect the sensitive devices Note the following measures that have
33. when relays or contactors switch very rapid changes in current or voltage high frequency interference signals or when two parts of a system have different grounding potentials low frequency signals Use only shielded cables for all data lines analog signal lines and connections to universal inputs e Ground cable shields on both sides The standard cables specified in the ST80 7 and ST70 catalogs meet these requirements e Screw down or lock all plug connections Do not install data lines or signal lines parallel to power lines Use a separate cable duct located at least 50 cm from power lines The basis of trouble free operation is the hardware setup of the control system Any interference signals resulting from the process should be kept away from the hardware setup where possible Devices which could bring in interference signals from outside should be installed at the bottom of the cabinet Place the grounding rail directly at the cabinet entrance so that cables which could be carrying interference signals can be placed directly on the grounding potential Place all shielded lines with their shielding here With double shielded signal lines place only the outer shield on the grounding potential Install long signal lines along the cabinet walls Setting up the cabinet in accordance with EMC guidelines is an important factor in the reduction of interference All grounding connections in the cabinet must have large cable c
34. 01 C7 Digital Input Output Terminal Figure 5 2 shows the terminal connection and the block diagram of the Connection and digital outputs Block Diagram Bottom view of C7 0 Digital outputs a 2L 3 P 4 AN 5 Y 6 Es 7 Yy gt N E AS aa ien 0 i 3 3 T 2M 3 4 Block diagram 5 6 7 Load power supply 24 V a Do 00 07 Ground gt 24V DO 1 0 1 7 Ground Channel number Parts with this shading are not relevant to this Pin No Pin No example Figure 5 2 Terminal Connection and Block Diagram of the Digital Outputs Connection of If the maximum permissible current is utilized for the load power supply Load Power both pins should be wired to avoid overloading of the contacts For relatively Supply low currents wiring of only one 24 V pin is sufficient C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 5 5 C7 Digital Input Output Specific Data of the Digital Output Function Data for Selecting an Actuator Number of outputs 16 Cable length e Unshielded 600 m Voltages Currents Potentials Nominal load voltage L 24 VDC 0 5 A Total current of the outputs 2A per group Galvanic isolation Yes optocoupler e In groups of 8 Insulation resistance 500 VDC Status Interrupts Diagnostics Interrupts No
35. 01 1 5 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Installing and Preparing the C7 Summary of 2 4 Arranging the C7 in the Mechanical Environment 2 5 Electrical Installation and Connector Pin Assignment Setup Guidelines for Interference Proof Installation E E C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 2 1 Installing and Preparing the C7 2 1 Scope of Supply and C7 Accessories Parts Supplied Spare Parts Accessories 2 2 The following components are included in the scope of supply of the C7 626 or C7 626 DP e C7 626 or C7 626 DP e A set of labeling strips for function keys and softkeys e Battery e A grounding bar e 6 shielding clips e 1 seal and 4 brackets e Product Information The following components can be ordered as spare parts for the C7 e Labeling strips for function keys and softkeys 6ES7 623 1AE00 1AA0 e Service package seal and 4 brackets 6ES7 623 1AE00 3AA0 e Back up battery 6ES7 623 1AE00 5AA0 The following components can be ordered as C7 specific accessories e C7 626 C7 626 DP Control Systems manual comprising two volumes in the languages German 6ES7 626 1 AE00 8AA0 English 6ES7 626 1 AE00 8BA0 French 6ES7 626 1 AE00 8CAO0 Spanish 6ES7 626 1AE00 8DAO Italian 6ES7 626 1 AE00 8EAO e Plug connectors for C7 I O with coding keys and coding sliders 6ES7 623 1 AE00 4AA0 The following components can be ordered as important standard accessorie
36. Diagnostic functions No 5 6 Output voltage e At 1 signal L 0 8 V Output current e At 1 signal nominal value 0 5 A Permissible range 5 mA 0 5 mA e At 0 signal quiescent max 0 5 mA current Lamp load max 5 W Parallel switching of 2 outputs e For logic operations Possible outputs of the same group only e For enhancing Not possible performance Activating a digital input Yes Max switching frequency e With resistive load lamp 100 Hz load e With inductive load 0 5 Hz Inductive cutoff voltage L 48 V limited internally to Short circuit protection of the Yes electronically outputs timed e Operating point 1A C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 C7 Digital Input Output 5 3 Status Bits of the DI DO Overview The process image of the digital I O can be displayed using a C7 system function There are two different states e Inputs are read directly from the process and are displayed in BIN format e Outputs are read from the process image PIQ and are displayed in BIN format In STOP mode the real process status for the outputs 0 The process image displayed may differ from this it is the last thing to be set by the control program Selecting the DI You do not require any server password level to select the DI DO status DO Status Display displa
37. Directive Products bearing the CE marking meet the requirements of the EU directive 89 336 EEC 89 336 EEC on Electromagnetic Compatibility Ce In accordance with the above mentioned EU directive Article 10 1 the EU declarations of conformity and the relevant documentation are held at the disposal of the competent authorities at the address below Siemens Aktiengesellschaft Bereich Automatisierungstechnik AUTE 14 Postfach 1963 D 92209 Amberg Federal Republic of Germany Area of The C7 626 and C7 626 DP control systems have been designed for use in Application the following areas in accordance with their CE marking Area of Application Requirements Emitted Interference Immunity Industrial and office area EN 50081 2 1993 EN 50082 2 1995 Household business and trade area small plants EN 50081 1 1992 EN 50082 1 1992 Observing the The installation guidelines and safety instructions described in the manual must Installation be observed when installing and operating the device Guidelines C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 A 5 General Technical Specifications A 3 Notes for the Machine Manufacturer Introduction EU Machinery The SIMATIC programmable controller system is not a machine as defined in the EU Machinery Directive There is therefore no declaration of conformity for SIMATIC with regard to the EU Machinery Directive 89 392 EEC The EU Machinery Directive 89
38. ET_RTM 3 CTRL_RTM and 4 READ RTM see the reference manual 235 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 2 23 Installing and Preparing the C7 2 11 Starting Up Overview The C7 comes supplied with a preloaded configuration You can therefore carry out a startup with the existing configuration However if the configuration no longer exists for example after a reset you must carry out a startup without any configuration This section explains how to proceed in these cases C7 626 C7 626 DP Control Systems 2 24 C79000 G7076 C626 01 Installing and Preparing the C7 2 11 1 With a Loaded Configuration in the C7 OP Starting Up After applying the power supply the C7 carries out a self test The test checks the functionality of the most important device components and displays the results of the test via the LED status and the display screen The following startup will be carried out 1 The C7 carries out a self test after power on 2 The C7 carries out an operating system test for both parts C7 CPU and C7 OP 3 During the start up phase 1 and 2 the C7 CPU remains in STOP mode Once the C7 OP has been started up the following basic screen will be displayed 399 Startup complete Basic C7 626 picture
39. Input Output 6 1 Connecting Transducers to Analog Inputs Overview You can connect various types of transducers to the analog inputs e Voltage transducers e Current transducers Cables for Analog To reduce electrical interference you should use twisted pair shielded cables Signals for the analog signals The shield of the analog signal cables should be grounded at both cable ends If there are potential differences between the cable ends an equipotential bonding current can flow over the shield This can interfere with the analog signals In such a case you should ground the shield at one end of the cable only Isolated Analog The analog input is isolated and so there is no electrical connection between Input the reference point of the measuring circuit Mana and the M terminal of the C7 power supply see Figure 6 1 A potential difference Viso can occur between the reference point of the measuring circuit Mana and the M terminal of the C7 Make sure that Viso does not exceed the permissible value Where it is possible that the permissible value might be exceeded see technical specifications establish a connection between the Mana terminal and the M terminal of the C7 Connecting A potential difference Vem common mode voltage may occur between the Transducers to measuring line AIx M of the input channels and the reference point of the Analog Inputs measuring circuit Mana However this potential difference must not exceed the
40. Installation Variant Connection Fixed installation of the The programming device PC is programming device PC in the MPI linked directly into the MPI network network Programming device PC connected The programming device PC is for startup and maintenance connected to one node via a spur purposes line C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 4 3 Connecting a Programming Device PC to a C7 Fixed Installation of Programming Device PC Connecting the Programming Device PC for Service Purposes 4 4 With fixed installation of a programming device PC in the MPI network you connect the programming device PC via a bus connector directly with the other nodes of the MPI network in accordance with the rules listed in Section 3 2 Figure 4 2 shows a C7 network with two C7s Both C7s are connected to each other via the PROFIBUS bus cable Oo0000 Oo oi m jm m Al 0000 0000 OOO000 QOOOOOOOO dob 00000000 ova I C7 OOO00000 gt oaao C7 Figure 4 2 Connecting a Programming Device to Several C7s If there is no stationary programming device PC available we recommend the following In order to connect a programming device PC for service purposes to an MPI network with unknow
41. PROFIBUS DP slaves by using the switch on the slave Note The RS 485 repeater has no MPI L2 address Table 3 1 contains all permissible MPI L2 addresses Table 3 1 Permissible MPI L2 Addresses MPI Addresses L2 Addresses 0 to 126 0 to 125 of which reserved of which reserved 0 for programming device 0 for programming device 1 for C7 OP 2 for C7 CPU The following table shows the default MPI addresses with which the C7 devices are supplied Node Device Default Highest Default MPI Address MPI Adress Programming device 0 15 C7 OP 1 15 C7 CPU 2 15 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 3 3 Configuring MPI Networks and PROFIBUS DP Networks Rules for the MPI L2 Addresses Special Features of CPs and FMs Data Packets in the MPI Network ZN CPU to CPU Communication GD Circle 3 4 Please observe the following rules before assigning MPI L2 addresses e All MPI L2 addresses in a network must be different e The highest possible MPI L2 address must be gt the largest actual address and must be the same for all nodes Exception connecting a programming device to several nodes se Chapter 4 CPs and FMs as customized modules or in expansion racks with their own MPI address have the following special feature their MPI address is determined automatically by the C7 and assigned according to the following system
42. SIEMENS SIMATIC C7 626 C7 626 DP Control Systems Volume 1 Installation Assembly Wiring Manual C79000 G7076 C626 01 5 D a pe O i Contents User Information Product Overview voll gt vollo 7 O3 gt dels 3 o5 Ko gt lt Nea gL oze KEJE Zz D Z Galles zz 5 S 5 3 a A 2 OBS feb 4D all Q oo N ok Connecting a Programming J D O D a j AY O N C7 Digital Input Output C7 Analog Input Output gt 5 Ke Y gt ae xe Ss lt Cc D 49 m 5 O 2 2 z S O 5 O g O 5 fa Oo 5 z o J E gt oO N o General Technical Specifications Guidelines for Handling Electrostatically Sensitive Devices ESD Glossary Index Safety Guidelines ZN aN ZN Qualified Personnel Correct Usage ZS Trademarks 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 Danger indicates thatdeath severe personal injury orsubstantial property damage will resultif proper precautions are not taken Warning indicates thatdeath severe personal injury orsubstantial property damage can resultif proper precautions are not taken Caution indicates that minor
43. a PROFIBUS DP Network C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 3 10 Configuring MPI Networks and PROFIBUS DP Networks Figure 3 7 shows an example of a setup with the C7 626 DP which is integrated in an MPI network and at the same time used as a DP master in a PROFIBUS DP network Example with C7 626 DP C7 626 DP as DP master ET 200M RS 485 repeater ET 200M C7 626 DP J OP 25 MPI network L2 DP network ge SR Only connected via spur line at startup or during service work with default MPI address Terminating resistance switched on 0 x MPI addresses of the nodes 0 x L2 addresses of the nodes Figure 3 7 Example of a Setup with the C7 626 DP in the MPI and PROFIBUS DP Networks C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 3 11 Configuring MPI Networks and PROFIBUS DP Networks 3 3 Cable Lengths Segment
44. any From Your Name Your Title Company Name Street City Zip Code Country Phone Please check any industry that applies to you Automotive Chemical Electrical Machinery Food Instrument and Control Nonelectrical Machinery u uuu Petrochemical C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Gy G a EE eel Pharmaceutical Plastic Pulp and Paper Textiles Transportation Other 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 1 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 Oe ON eta tae Ts SD S Additional comments C7 626 C7 626 DP Control Systems 2 C79000 G7076 C626 01
45. ay is one of the possible responses of the operating system to a run time error The other possible responses are error response in the user program STOP mode of the C7 CPU 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 parameters that determine the characteristics of the gt C7 CPU and the I O functionality of the C7 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Glossary 3 Glossary Flash Memory Function Grounding Function Module FM Ground Ground verb H Hardware Interrupt Information Function Glossary 4 Flash EPROM Grounding with the sole purpose of ensuring the intended purpose of the electrical resources Function grounding has the effect of short circuiting interference voltages that would otherwise have an impermissible influence on the resources A function module is a module that offloads the CPU of the 7 300 and S7 400 programmable controllers of time critical or memory intensive process signal handling tasks FMs generally use the internal bus for high speed data exchange with the CPU Examples of FM applications include counting positioning closed loop contro
46. bles Cable Table 3 6 Bus Cables PROFIBUS bus cable PROFIBUS direct buried cable PROFIBUS drum cable PROFIBUS bus cable with PE sheath for food and drinks industry PROFIBUS bus cable for festooning Characteristics of The PROFIBUS bus cable is a two core twisted and shielded cable with the the PROFIBUS Bus following characteristics Cable Table 3 7 Characteristics of the PROFIBUS Bus Cable Surge impedance Approx 135 to 160 Q f 3 to 20 MHz Loop resistance 115 Q km 0 9 dB 100 m f 200 kHz C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 3 15 Configuring MPI Networks and PROFIBUS DP Networks Rules for Cable When laying the PROFIBUS bus cable you must not Laying e twist it e stretch it or e press it In addition when laying the interior bus cable you must observe the following boundary conditions dq outer diameter of the cable Table 3 8 Boundary Conditions when Laying the Interior Bus Cable Features Edge Conditions Bending radius when bent once 80 mm 10 Xda Bending radius when bent several times 160 mm 20 x da Permissible temperature range when laying 5 C to 50 C Storage and stationary operating temperature 30 C to 65 C C7 626 C7 626 DP Control Systems 3 16 C79000 G7076 C626 01 Configuring MPI Networks and PROFIBUS DP Networks 3 5 Bus Connectors Purpose of the Bus Connector No Application The bus connect
47. bling the Proceed as follows to connect the PROFIBUS bus cable to the bus connector PROFIBUS Bus 6ES7 972 0B 10 0XA0 Cable fOr BUS 1 Cut the bus cable to the desired length Connectors 2 Insulate the bus cable according to Figure 3 16 6XV1 830 0AH10 3BH10 6XV1 830 3AH10 7 5 9 7 5 9 aa a 6 16 6 pa r Figure 3 16 Length of Bared Wire for Connecting to the Bus Connector 3 Open the housing of the bus connector by loosening the housing screws 4 Remove the cover C7 626 C7 626 DP Control Systems 3 22 C79000 G7076 C626 01 Configuring MPI Networks and PROFIBUS DP Networks 5 Insert the green and red wires into the screw type terminal block as shown in Figure 3 17 Make sure that you always connect the same wires at the same terminal A or B for example always connect the green wire to terminal A and the red wire to terminal B 6 Press the cable sheath between both sides of the screw type terminal block This will hold it in place 7 Screw the green and red wires tightly into the screw type terminal block Bus cable connection for first and Bus cable connection for all last nodes on the network further nodes on the network ors es o 3 io P CO The bus cable can be zy connected on the right or on the left SIEMENS
48. bus cable to the PROFIBUS bus connector with the order Bus Cable number 6CGK1500 0EA00 as follows 1 Strip the insulation off the cable Insert the green and red wires into the screw type terminal block 2 3 4 Press the cable sheath between both sides of the screw type terminal Screw the green and red wires tightly into the screw type terminal Cable shield PROFIBUS bus cable 6XV1 830 0AH10 Screw clamp for the bus cable connection Figure 3 12 Connecting the PROFIBUS Bus Cable to the Screw Type Terminal Block 3 5 2 Bus Connector 6ES7 972 0B 20 0XA0 Appearance Figure 3 13 shows the bus connector 6ES7 972 0B 20 6ES7 972 0B 20 ave ee mats for fixing p 9 pin sub D connector o Stauon o for connection to station LA Switch for 4 terminating resistance PG type connector only with 6ES7 972 0BB20 0XA0 Housing screw Clamp type hinge for vertical or 30 outgoing cable Figure 3 13 Bus Connector Order Number 6ES7 972 OB 20 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 3 19 Configuring MPI Networks and PROFIBUS DP Networks Assembling the Connect the bus cable to the bus connector 6ES7 972 0B 20 as follows Bus Gable 1 Strip the insulation off the bus cable as shown in Figure 3 14
49. bus connector PROFIBUS bus connector PROFIBUS bus terminal PROFIBUS DP Starting up PROFIBUS DP network Segment 3 12 Setup example 3 11 Programming device Connection to an MPI network In MPI network Programming device cable ka R Ready message Remote segment Repeater RS 485 repeater Terminating resistance Using 3 7 RUN Run time meter 2 23 S S7 300 CPU S7 400 CPU Segment MPI network 3 12 PROFIBUS DP network 3 12 Self test 2 25 Service programming device 3 7 Setpoint configuration Setup guidelines C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 SF Shield Shielding clips Signal modules SINEC L2 DP Starting up CPU as DP master PROFIBUS DP 83 25 Storage of back up batteries Surge impedance Siehe AbschluBwiderstand T Technical specifications dimensions A 2 Terminating resistance Example B 8 On bus connector On RS 485 repeater Set at the bus connector Transducer Isolated Non isolated Transmission rate DP MPI U Universal inputs Assigning parameters Pin assignments V V24 Voltage measurement 6 9 Voltage transducer 6 Connection WwW Wire break check analog input module SM 331 AI 8 Index 3 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Q ox Siemens AG AUT E 146 Ostliche Rheinbriickenstr 50 D 76181 Karlsruhe Federal Republic of Germ
50. ceed as follows to install the grounding bar and shielding clips supplied with the C7 1 Unfasten the two screws on the C7 as shown in Figure 2 10 2 Position the grounding bar as shown in Figure 2 10 and fix this in place with the previously removed screw 3 Affix the shielding clips to the grounding bar as shown in Figure 2 10 4 Press the insulated cable into these shielding clips in such a way as to achieve optimal contact of the cable shield tye Figure 2 10 C7 with Grounding Bar and Shielding Clips C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Installing and Preparing the C7 2 8 Keying Connectors Overview Keying Connectors ZN A set of connectors with solid and profiled coding keys can be ordered as C7 accessories see Section 2 1 under Accessories This section describes how to key the connectors The solid coding keys and profiled coding keys see Figure 2 11 prevent a connector from being confused with another without polarity reversal Proceed as follows 1 Insert the solid coding key into the notches provided on the connector part 2 Insert the profiled coding key into the respective cutouts on the housing part Solid and profiled coding keys that face each other prevent the connector from being plugged in The connector can be plugged in if solid and profiled coding keys do not face each other Figure 2 11 How to Key Connect
51. ck call operations e Overview of how to use the STEP 7 applications for developing projects with detailed examples e Using the test and diagnostic functions of the CPUs in the user program for example error OBs status word S7 300 Programmable Describes the hardware of the S7 300 Contr oller Electrical configuration of the 7 300 Installation and Hardware e Installing the 7 300 e Wiring and preparing the S7 300 for operation e Characteristics and technical specifications of the S7 300 modules S7 300 M7 300 Describes the hardware of the S7 300 modules Programmable Controllers e Module Specifications Reference Manual Analog modules e Digital modules e Interface modules e Characteristics and technical specifications of the S7 300 modules S7 300 Programmable Describes the instruction set of the CPU 312 CPU 314 CPU 315 and CPU 315 DP Controller CPU 312 CPU including the execution times of all operations 314 CPU 315 CPU 315 DP Instruction List PG 7xx Describes the programming device PG hardware e Assembling and starting up the programming device e Expansion possibilities e Configuring e Error diagnostics COROS Manual for creating configurations ProTool e Using ProTool e Configuring e Displays and messages Loading the configuration into the C7 C7 626 C7 626 DP Control Systems 7 C79000 G7076 C626 01 vil Preface Structure of This This manual has the following aids to help you
52. d on the inside cannot be cleaned and can only be replaced in the factory A sheet with plant specific labeling strips is also provided The strips must be cut off exactly along the marked line If the labeling strips are too large they cannot be inserted into the keyboard Labeling strips can only be changed when the C7 is not installed The sealing ring should be replaced Proceed as follows Cut off the corners of the labeling strip that are marked with a C7 626 K1 K10 If possible hold the labeling strip at the end you want to insert in the slit Hold the strip horizontally Hold the strip by touching both surface areas rather than the edges to facilitate insertion Slide the strips into the slits provided The location of the slits is shown in Figure 2 1 The strips are slid over the existing labeling To avoid bending the strip as you insert it move it backwards and forwards several times C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Installing and Preparing the C7 Labeling Strips Labeling Strips Figure 2 1 Inserting Labeling Strips C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 2 5 Installing and Preparing the C7 2 3 Installing a C7 Installation The C7 has been prepared for fixed installation in a control panel or cabinet door Proceed as follows Make a standard cutout in the control panel in accordanc
53. delines for Handling Electrostatically Sensitive Devices ESD B 1 Whatis ESD 0 0 00 e eee eee eee B 2 B 2 Electrostatic Charging of Objects and Persons 00000 B 3 B 3 General Protective Measures Against Electrostatic Discharge Damage _ B 4 B 4 Taking Measurements and Working on ESD Modules B 5 Packing Electrostatically Sensitive Devices 0000000 C7 626 C7 626 DP Control Systems x C79000 G7076 C626 01 Product Overview Overview This chapter contains general information concerning the C7 626 and C7 626 DP A brief overview of the performance range provides you with a first impression of the two units This chapter also tells you which additional components you can connect to a C7 device Accessories for To operate the C7 you require the following accessories Operating INEC Programming device PG or PC with a multipoint interface and programming device cable e You must load the following on to the programming device or PC the STEP 7 applications ProTool C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 1 1 Product Overview Introduction C7 626 C7 626 DP The C7 systems are available in two variants With a graphics display digital and analog inputs and outputs multipoint interface and IM360 interface module The C7 626 DP is identical to the C7 626 but has the additional feature of a PROFIBUS DP interface module
54. e O Rack 2 Slot number IM361 3 4 5 6 7 8 9 10 11 368 connecting cable 2 Rack 1 Slot number IM361 3 4 5 6 7 8 9 10 11 368 connecting cable y z Customer specific module Slotnumber 2 3 4 5 6 H Figure 2 12 Maximum Configuration of the Slots of a C7 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 2 21 Installing and Preparing the C7 2 10 C7 Clocks Overview Clock in the C7 CPU Setting the C7 CPU Clock Master Clock Setting and Reading the Clock in the Control Section Clock During Power Off Clock in the C7 OP Section Setting the O I Clock Setting and Reading the Clock in the C7 OP Section 2 22 A C7 system has two clocks
55. e n Terminating T resistance Bus segment 1 LAN on M Terminating SIEMENS resistance RS 485 REPEATER Bus segment 2 A2B2A2B2 0999 S I_B Figure 3 3 Terminating Resistance on the RS 485 Repeater Example of Using a possible MPI network configuration Figure 3 4 shows where you Terminating must connect the terminating resistance Resistance in the MPI Network C7 PG m oQ 7 300 7 300 7 300 Fy yy oP ET G Rs485 EO opa fi J BAA EE a fl repeater Spur line PG Only connected via spur line at startup or during service work Terminating resistance switched on Figure 3 4 Switching Terminating Resistances in an MPI Network C7 626 C7 626 DP Control Systems 3 8 C79000 G7076 C626 01 Configuring MPI Networks and PROFIBUS DP Networks Example of an MPI Figure 3 5 shows the main setup of an MPI network according to the rules Network listed above 7 300 7 300 CP yd ee ae a J e il gl PROFIBUS DP o E4 A o P a Network T 5 s 9 oe S7 300 OP 25
56. e Manufacturer AA Transport and Storage Conditions for Back Up Batteries C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 A 1 General Technical Specifications A 1 Technical Specifications The table contains the technical specifications of the overall unit The data for the I O can be found in the relevant chapters Table A 1 Criterion C7 626 C7 626 DP Technical Specifications of the C7 Technical Specifications Order number C7 626 6ES7626 1AG00 0AE3 C7 626 DP 6ES7626 2AG00 0AE3 Dimensions C7 mounting 240 x 168 x 69 mm H x W x D dimensions 231 x 159 mm Weight C7 626 1350g C7 626 DP 1390g C7 626 C7 626 DP display FSTN display graphics capacity 360 x 240 Pixel CCFL back lighting Keyboard Membrane keyboard with metal domes 48 keys 28 integrated LEDs Serial interface V 24 printer Multipoint interface Standard MPI Back up battery Back up time approx year C7 OP Flash memory configuration memory C7 626 128 Kbytes Work memory 128 Kbytes Power supply Supply voltage Vom e Polarized input voltage 24V DC 20 4 to 30 2V DC safety extra low voltage The C7 626 and C7 626 DP have no internal protection against high energy surge pulses in the us range For information on protection regulations con sult the manual 70 Chapter 4 Yes connection e Voltage interruption gt 20ms can be jum
57. e addressed individually and have its contents changed RAM is used as a memory for data and programs The reference ground is the total of all connected inactive parts of an operating resource that cannot carry a hazardous touch voltage even in the event of a fault Potential from which the voltages of the connected circuits are considered and or measured C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Glossary 7 Glossary S Scan Cycle Time Signal Module STEP 7 STEP 7 Application Substitute Value System Diagnostics System Memory T Time Delay Interrupt Time Of Day Interrupt Glossary 8 The scan cycle time is the time required by the C7 to execute the gt user program once Signal modules C7 I O form the interface between the process and the C7 There are digital input and output modules and analog input and output modules Programming software for creating user programs for SIMATIC S7 programmable controllers A STEP 7 application is a tool 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 diagnostics comprises the recognition evaluation and si
58. e control circuit and the load circuit are galvanically isolated by for example optocouplers relay contactors or transformers Input output circuits can be connected to common potential The load memory is a component part of the C7 CPU It contains objects load objects created by the programming device It is implemented as a fixed integrated memory When clearing the gt C7 CPU the following memories are deleted e The gt work memory e The read write memory area of the load memory e The system memory e The back up memory and the user program is reloaded from the flash memory When clearing the C7 OP the following memories are deleted e The gt work memory e The configuration memory The C7 OP then does not contain a user configuration Multipoint Interface A network is a connection of several C7s and or S7 300s and further terminals such as a programming device via a gt connecting cable Data are exchanged between the connected devices over the network C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Glossary 5 Glossary Multipoint Interface MPI N Node Number Non lsolated O Operating System of the C7 CPU Parameters Parameters Dynamic Parameters Static Glossary 6 The multipoint interface is the programming device interface in SIMATIC S7 It allows a number of programmable modules text display operator panels and operat
59. e interface between the process and 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 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 Communications Processor Communications processors are intelligent modules with their own processor They form an important group within the components of a programmable controller A distinction can be made between various types of communications processors according to their tasks For example CPs for messages and logging for point to point connection for operator interfacing COROS for bus connections SINEC for diagnostics and mass storage applications When a CPU starts up for example when the mode selector is moved from STOP to RUN or when power is turned on before cyclic program processing starts OB 1 the organization block OB100 complete restart is processed first In a complete restart the process image input table is read in and the STEP 7 user program processed starting with the first statement in OB1 The assignment of modules to racks
60. e only exceptions if you set a transmission rate gt 1 5 Mbps in the PROFIBUS DP network In this case you require special components which will be referred to in the relevant section Since the setup of an MPI network does not differ from that of a PROFIBUS DP network this section will simply refer to setting up a network You must assign MPI L2 addresses to the individual nodes of an MPI or PROFIBUS DP network to enable them to communicate with each other How you assign these addresses and what rules you must observe are described in the STEP 7 manuals C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 3 1 Configuring MPI Networks and PROFIBUS DP Networks 3 1 Setting Up a Network Definition Multipoint Interface MPI MPI Transmission Rate Definition PROFIBUS DP DP Transmission Rate Connectable Nodes Device Node Segment 3 2 The interface of the C7 for connecting for example programming devices is called a multipoint interface since several devices can communicate with the C7 via this interface that is communication can take place from several points The MPI transmission rate of the C7 626 and C7 626 DP is fixed at 187 5 Kbps Digital analog and intelligent modules as well as a wide range of field devices according to DIN E 19245 Part 3 such as drives or valve islands are stored locally from the automation system to the process up to a distance of 23 km The modules
61. e operating characteristics of a module An automation system is a gt programmable logic controller in the SIMATIC S7 range The back up battery guarantees that the user program in the C7 CPU is stored safe from power failures and that data areas bit memory timers and counters remain retentive The back up memory backs up memory areas of the gt C7 620 without the need for a back up battery The memory backs up a programmable number of timers counters bit memory and data bytes the retentive timers counters bit memory and data bytes A bus is a transfer medium that connects two or more nodes with each other Data transfer can be serial or parallel via electrical conductors or fiber optic cable The C7 620 control system integrates an S7 300 CPU a COROS OP the I O and an IM 360 interface module in one single unit C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Glossary 1 Glossary C7 CPU C7 I O C7 OP CP Communications Processor CP Complete Restart Configuration Configuration Memory Cyclic Interrupt Glossary 2 The C7 CPU is 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 I O signal module forms th
62. e with DIN 43700 dimensions 23 5 x 158 5 mm Insert the enclosed sealing ring behind the front panel see Figure 2 2 Insert the C7 in the cutout in the control panel Insert the four fixing brackets sed Figure 2 4 into the guides provided Push the fixing brackets in until the spring engages Screw the four fixing screws enclosed with the C7 into the four fixing brackets enclosed seq Figure 2 5 approximately two to three turns Tighten the four screws with a screwdriver Insert sealing ring here Figure 2 2 Inserting the Sealing Ring lt 69 gt lt 240 gt E 168 1 lt 230 5495 gt j ___ Cutout in front panel 158 540 5 Figure 2 3 Dimensions for the C7 C7 626 C7 626 DP Control Systems 2 6 C79000 G7076 C626 01 Installing and Preparing the C7 Fixing Bracket Before Engaging Figure 2 4 Fixing Bracket Before Engaging Fixing Bracket Engaged Figure 2 5 Fixing Bracket Engaged with Screw C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 2 7 Installing and Preparing the C7 Loosening the Proceed as follows when loosening the fixing bracket Fixing Bracket Action Loosen
63. ee 4 2 Connecting a Programming Device PC to Several Nodes 4 3 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 IX Contents 5 C7 Digital Input Output ccc eee ee 5 1 5 1 Digital Input Function 0 0 cee ees 5 2 5 2 Digital Output Function 0 0 ccc eee tees 5 4 5 3 Status Bits of the DI DO 2 5 7 6 C7 Analog Input Output 0 cece eee 6 1 Connecting Transducers to Analog Inputs 000eee eee eee 6 2 6 1 1 Connecting Voltage and Current Transducers 02202000 00 6 5 6 2 Connecting Loads Actuators to the Analog Output 6 3 Analog Input Function 0 cee ee 6 3 1 Characteristics and Technical Specifications of the Analog Input Module 6 10 6 4 Analog Output Function 0000 cece eee eee 6 15 Universal Inputs 0 cece cece eee eee e eee eee ee eeee eens 7 1 Maintenance iicci2 oad cee feed cee eed EA EEA 8 1 Changing and Disposing of the Back Up Battery 8 2 8 2 Replacing the C7 susarsan ianua nabina ie beta EEEE REO eee es A General Technical Specifications 000 cceeeceeeeeeeeeeeeeeeeeees A 1 Technical Specifications saae ccc tees A 2 A 2 Notes on the CE Marking 0 cc cece eee e eee eee A 5 A 3 Notes for the Machine Manufacturer 20200ce ee eeee eee eee A 6 A 4 Transport and Storage Conditions for Back Up Batteries A 7 B Gui
64. ers Each RS 485 repeater used reduces the maximum number of nodes per bus segment This means if there is an RS 485 repeater in a bus segment there can then only be a maximum of 31 further nodes in the bus segment The number of RS 485 repeaters has no effect on the maximum number of nodes on the bus There can be up to 10 segments in one row Switch the terminating resistance on at the geographical end point of the network seq Section 3 3 Before you insert a new node into the network you must switch off the supply voltage C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Configuring MPI Networks and PROFIBUS DP Networks Recommendation for MPI Addresses in the Network Recommendation for PROFIBUS Addresses Components Using the RS 485 Repeater Terminating Resistance Terminating Resistance On Bus Connector The MPI addresses set at the factory should not be assigned as fixed node addresses since otherwise address conflicts double MPI addresses can arise when devices are replaced or the network is expanded e Reserve the MPI address 0 for a service programming device e Reserve the address 1 for the C7 OP e Reserve the address 2 for the C7 CPU This avoids double assignment of MPI addresses after installing a further preset C7 or S7 300 in the MPI network for example when replacing a C7 Reserve the L2 address 0 for a service programming device which may be tempora
65. find specific information Manual do re e At the beginning of the two volumes you will find a complete directory of contents e In each chapter you will find information in the left hand column of every page giving you an overview of the contents of that section e After the Appendices there is a Glossary containing important technical terms used in the manual e At the end of the manual there is a detailed index Standards The C7 control system conforms to standards as described in Appendix A 1 Queries If you have any questions concerning the C7 control system please contact your local Siemens representative You will find a list of Siemens representatives worldwide in Volume 2 of the manual Appendix E If you have any questions or remarks concerning the manual please fill in and return the Suggestions Corrections form at the back of Volume 2 ast C7 626 C7 626 DP Control Systems VIII C79000 G7076 C626 01 Contents 1 Product OVGIvieW sideu2eteida snes tend E Hee tee ee ea eat eee i1 1 2 Installing and Preparing the C7 000 ee cece eee eens 2 1 2 1 Scope of Supply and C7 Accessories 0 cece eee ee eee 2 2 Inserting the Labeling Strips 000 c cee cece eee 2 3 Installing a C onan oraiaundnensadendaneehaensseesbartntareciains 2 4 Arranging the C7 in the Mechanical Environment 2 5 Electrical Installation and Connector Pin Assignment 2 10
66. for damages Allrights including rights created by patentgrantorregistration of a utility model or design are reserved Siemens AG Automation Group Industrial Automation S ystems Postfach 4848 D 90327 N rnberg Disclaimer of Liability We have checked the contents of this manual for agreement with the hardware and software described Since deviations cannot be 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 1996 Technical data subject to change Siemens Aktiengesellschaft Order No C79000 G7076 C626 Preface Purpose Audience Contents of This Manual The information in this manual will enable you to do the following Install and wire a C7 626 or C7 626 DP Volume 1 Assign parameters to the CPU of the C7 626 or C7 626 DP load a user program into this CPU and run the program Volume 2 Put the C7 626 and C7 626 DP into operation and use the operator interface O I functions Volume 2 The manual is divided to take into account two different types of reader Volume 1 Users who carry out the mechanical and electrical installation of the C7 at the location of use and who bring the C7 to a state of readiness for immediate use Volume 2 Users who create control programs and O I configurations load them into the C7 and pr
67. ge of Back Up Batteries ZN 8 4 We recommend that you change the battery every year Please observe national regulations guidelines concerning the disposal of back up batteries Store back up batteries in a cool dry place Back up batteries can be stored for up to five years Warning Back up batteries can ignite or explode and constitute a serious fire hazard if they are heated or damaged Store back up batteries in a cool dry place C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Maintenance Rules for Handling To prevent hazards when using back up batteries you must observe the and Using following rules Back Up Batteries A Warning The use of back up batteries may result in injury and damage Wrongly handled back up batteries can explode or cause serious burns Do not e recharge e heat e burn e drill e crush e short circuit back up batteries C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 8 5 Maintenance 8 2 Replacing the C7 Introduction Prerequisite Removal Installation 8 6 On site repair of the C7 has not been provided for For this reason a defective C7 must be replaced The following prerequisites must be met for replacing a C7 Hardware e Programming device PC with MPI interface module e PG PC cable or PC MPI cable Development tools e STEP 7 e ProTool User software stored outside the C7 e User configuration e User control p
68. gnalling of errors which occur within the programmable controller Examples of such errors include program errors or module failures System errors can be indicated via LEDs or via STEP 7 The system memory is integrated in the CPU and executed in the form of RAM The address areas for example timers counters bit memory and data areas required internally by the gt operating system for example backup for communication are stored in the system memory The time of day interrupt belongs to one of the priority classes in the program execution of the C7 CPU It is generated at a specific date or day and time for example 9 50 or every hour or every minute A corresponding organization block is then executed The time delay interrupt belongs to one of the priority classes in SIMATIC S7 program execution It is generated when a timer has expired in the user program A corresponding organization block is then executed C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Glossary Tool Total Current Transmission Rate U Ungrounded User Memory User Program V Varistor W Work Memory RAM STEP 7 Application Sum of the currents of all output channels of a digital output module Data transmission rate bit s Without galvanic connection to gt ground The user memory contains logic blocks and data blocks of the user program The user memory is integrated in the C7 CPU as flas
69. h memory In general however the user program is executed from the gt work memory of the C7 CPU The user program contains all the statements and declarations and the data required for signal processing to control a plant or a process The program is linked to a programmable module for example C7 CPU FM and can be structured in the form of smaller units blocks Voltage dependent resistor The work memory is a RAM in the gt C7 620 which the processor accesses while executing the program C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Glossary 9 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Index Figures 24 VDC input 2 14 368 connecting cable 4 wire transducer Connection Measuring ranges A Accessories Actual configuration Address Analog input Isolated Measuring ranges 6 9 Analog input function 6 9 Technical specifications Analog input module Characteristics Technical specifications Terminal connection diagram Analog input module SM 331 AI 8 wire break check 6 9 Analog inputs outputs Analog output function Technical specifications Terminal connection diagram Analog signal cable for Assembling bus cable on PROFIBUS bus con nector Assigning parameters to universal inputs 7 3 AUX digital inputs 2 12 Back up batter Changing 8 2 Disposing of 8 4 Storing zl Transport and storage conditions A 7
70. iguring MPI Networks and PROFIBUS DP Networks 200 o 000 g 000 B o00 ajaan OOO00000 gas OOoO00000 ovo RS 485 repeater 1000 m Remote segment Joe PROFIBUS bus cable Figure 3 8 Maximum Cable Length Between Two RS 485 Repeaters Length of Spur If you do not assemble the bus cable directly onto the bus connector for Lines example when using an L2 bus terminal you must take into account the maximum possible spur line length The following table shows which maximum lengths of spur lines are permitted per bus segment For 3 Mbps and above use the programming device connecting cable with order number 6ES7 901 4BD00 0XA0 to connect the programming device or PC You can use several programming device connecting cables with this order number in one bus setup Other spur lines are not permitted Table 3 4 Length of the Spur Lines per Segment Transmission Max Length of Number of Nodes with a Spur Rate Spur Line per Line Length of Segment 1 5 mor 1 6m 3m 9 6 to 93 75 Kbps 96m 32 187 5 Kbps 75m 32 25 1 5 Mbps 10m 3 3 to 12 Mbps C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 3 13 Configuring MPI Networks and PROFIBUS DP Networks Figure 3 9 shows a possible MPI network configuration The example
71. in an MPI Network Segment ina PROFIBUS DP Network Longer Cable Lengths 3 12 You can implement cable lengths up to 50 m in a segment of an MPI network The 50 m applies from the first node to the last node of the segment Table 3 2 Permissible Cable Length of a Segment in an MPI Network in a with non isolated interface In a segment of a PROFIBUS DP network the cable length depends on the transmission rate see Table 3 3 Table 3 3 Permissible Cable Length of a Segment in a PROFIBUS DP Network Depending on the Transmission Rate Transmission Rate Max Cable Length of a Segment in m 9 6 to 187 5 Kbps 1000 500 Kbps 400 1 5 Mbps 200 3 to 12 Mbps 100 with isolated interface If you implement longer cable lengths than those permissible in one segment you must use RS 485 repeaters The maximum possible lengths between two RS 485 repeaters correspond to the cable length of a segment However when using these maximum cable lengths note that there must be no other node remote segment between the two RS 485 repeaters You can connect up to nine RS 485 repeaters in series When calculating the total number of nodes to be connected note that an RS 485 repeater counts as a node of the network even if it has not been assigned its own MPI L2 address illustrates the principle of cable extension with RS 485 repeaters for the MPI C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Conf
72. inal values Load resistance e At voltage outputs e At current outputs e Capacitive Load e Inductive Load Voltage output e Short circuit protection e Short circuit current Current output e Idle voltage Connection of actuators e For voltage output 2 wire connection e For current output 2 wire connection Supply of sensors 6 18 10V 20 mA from 4 to 20 mA min 2k Q max 500 Q max uF max mH Yes countervoltage proof max 25 mA min 15V Possible Possible External not via C7 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Universal Inputs Universal Inputs This chapter describes the technical specifications and characteristics of the universal inputs for the C7 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Universal Inputs Overview The C7 has four digital universal inputs that provide the following functionality e Interrupt input e Counter input e Frequency period duration counter input e Digital input These input functions can be set by assigning them parameters Terminal Figure 7 1 shows the pin assignments of the universal inputs Connection Diagram View of right hand side of C7 g o e Universal inputs Ground DI X1 oe DI X2 s 3 DI X3 3 DI X4 Not assigned Parts with this shading are not relevant to this example Figure 7 1 Pin Assignments of the Univer
73. ing Non operating Tested in accordance with DIN IEC 68 2 6 10 to 58 Hz amplitude 0 075 mm 58 to 500 Hz acceleration 9 8 m s 5 to 9 Hz amplitude 3 5 mm 9 to 500 Hz acceleration 9 8 m s2 Shock Operating Non operating Tested in accordance with DIN IEC 68 2 29 Semi sinusoidal 100 m s 10 g 16 ms 100 shocks 250 m s 25 g 6 ms 1000 shocks 24 V DC Power Supply ZN Relevant for the U S A and Canada A 4 The entire 24 VDC power supply for the C7 626 and C7 626 DP operating voltage load voltage relay power supply etc must be provided in the form of safety extra low voltage SELV Warning Personal injury and damage to property can occur If you do not provide the correct 24 VDC power supply for your C7 626 or C7 626 DP this may result in damage to components of your programmable controller and personal injury Use only safety extra low voltage SELV for the 24 VDC power supply to your C7 626 or C7 626 DP The following markings are used to show the relevant approval Underwriters Laboratories UL to UL 508 standard AY UL recognition mark G Canadian Standard Association CSA to standard C 22 2 No 142 N gt FM Standards No 3611 3600 3810 APPROVED for use in Class I Division 2 Group A B C D indoor hazardous APPROVED locations C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 General Technical Specifications A 2 Notes on the CE Marking EC EMC
74. inputs enable you to capture counter pulses up to a frequency of 10 kHz The counter can count either up or down This enables you to count pulses within a programmed length of time From this you can calculate a frequency lt 10 kHz This function enables you to count fixed timer ticks between two equal edges From this you can calculate the duration of an interval period C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Universal Inputs Technical Specifications of the Universal Inputs Specific Data of the Universal Inputs Data for Selecting a Sensor Cable length Number of inputs shielded unshielded Voltages Currents Potentials Nominal load voltage L Number of simultaneously energizable inputs Galvanic isolation Interrupts Counter functions Max counter frequency Counters Principle Counter range Limit value setpoint specification Counter interrupt of up counter Counter interrupt of down counter Enable Period Duration Counter Principle Counter range Max period duration Frequency Counter Principle Counter range Gate width Max frequency 4 1000 m 600 m 24 VDC 4 No Function Interrupts Diagnostics Can be assigned parameters Can be assigned parameters 10 kHz Module standard diagnostics in conjunction with analog I O No channel specific diagnostics Max 3 Edge counting up 0 to 65535 down 65535 to 0 1 value per counter
75. int out screen displays and messages This manual describes the hardware and software of the C7 626 and C7 626 DP It consists of two volumes Volume 1 of the manual covers the following topics Installation and preparation of the C7 626 or C7 626 DP Networking the C7 626 or C7 626 DP with programming devices PGs and other devices Connecting the digital and analog I Os Connecting the I Os to the universal inputs Connecting the IM361 interface module Connecting a printer to the C7 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Preface Conventions Concerning C7 Scope of This Manual C7 Manual Other Pertinent Manuals Volume 2 of the manual covers the following topics e Starting up the C7 e Controlling with the C7 CPU e Addressing and assigning parameters to the C7 I O e C7 diagnostics e Using the O I functions of the C7 To make the manual easier to read the device type description C7 626 or C7 626 DP will be referred to throughout the manual as C7 This manual is valid for the following C7s C7 626 6ES7626 1AG00 0AE3 C7 626 DP 6ES7626 2AG00 0AE3 This manual is available under order number 6ES7626 1AE00 8BAO This manual describes the C7 626 and C7 626 DP For programming expanding and configuring a C7 you also require the following manuals C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Preface Programming Expanding Configuring Assigning pa
76. is chapter explains how you can connect a programming device or PC to the C7 via a multipoint interface Connecting a You can connect a programming device or PC with the MPI of the C7 using a Programming prefabricated programming device cable DeviceinG toa Er Alternatively you can make up the connecting cable yourself using the PROFIBUS bus cable and bus connectors seq Section 3 5 Figure 4 1 shows the components for connecting a programming device PC toa C7 o000 o000 OO0000 ol Oo Oo m m Al 000000 OOO000000 dob oooo0o0o0o00 Ovo C7 z Programming s S device cable Programming Device PC Figure 4 1 Connecting a Programming Device PC to a C7 C7 626 C7 626 DP Control Systems 4 2 C79000 G7076 C626 01 Connecting a Programming Device PC to a C7 4 2 Connecting a Programming Device PC to Several Nodes Possibilities Two Installation Variants This chapter shows you how to connect a programming device or PC to several networked nodes via the MPI When you connect a programming device PC to several nodes you must differentiate between two installation variants e Fixed installation of the programming device PC in the MPI network e Programming device PC connected for startup and maintenance purposes Depending on this you connect the programming device PC with the other nodes as follows see also Section 3 2
77. l Conductive ground whose electrical potential at any point can be taken as Zero In the area of grounding electrodes the ground can have a potential other than zero This is frequently referred to as the reference ground To connect an electrically conductive part with the grounding electrode one or more conductive parts that have very good contact to ground by means of a grounding point A hardware interrupt is triggered by interrupt triggering modules as the result of certain events in the process The hardware interrupt is signaled to the C7 CPU Depending on the priority of the interrupt the corresponding organization block is then executed The information 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 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Glossary Interrupt Isolated Load Memory Memory Reset MPI MPI Network The operating system of the C7 CPU recognizes 10 different priority classes governing execution of the user program Interrupts such as hardware interrupts belong to these priority classes When an interrupt occurs the operating system automatically calls an assigned organization block in which the user can program the desired response for example in an FB In isolated input output modules the reference potentials of th
78. l of the analog output L Terminal for 24 VDC supply voltage M so Potential difference between Mana and the M terminal of the C7 Figures 6 5 t0 6 6 khow you how to connect loads actuators to the current and or voltage outputs of the analog output module C7 626 C7 626 DP Control Systems 6 6 C79000 G7076 C626 01 C7 Analog Input Output Connecting Loads You must connect loads to a current output at Qy and the reference point of to a Current the analog circuit Mana Output Figure 6 5 shows the principle of connecting loads to a current output of an isolated analog output module r AO I Lo DAC C7 CPU gic RL AO M A O Viso L M LO Ground bus Figure 6 5 Connecting Loads to a Current Output of an Isolated Analog Output Module Connecting Loads Connection of loads to a voltage output is only possible in 2 wire circuits as to a Voltage there is only one output Output C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 6 7 C7 Analog Input Output 2 Wire Connection 2 wire connection of loads to a voltage output is carried out at terminal Qy and the reference point of the measuring circuit Mana Figure 6 6 shows the principle of connecting loads to a voltage output of a non isolated analog output module with 2 wire connection
79. l outputs bottom V 24 serial interface e g for printer DI DO 24 VDC power supply Figure 2 8 A View of the C7 with External I O Interfaces C7 Pin Tables 2 1 t 2 6 how the pin assignments for the following C7 connectors Assignments Digital Inputs Table 2 1 Pin Assignments of the Digital Inputs Pin No Signal Explanation 0 0 10 0 0 1 10 1 0 2 10 2 0 3 10 3 0 4 10 4 0 5 10 5 0 6 10 6 0 7 10 7 1 0 11 0 1 1 I1 1 C7 626 C7 626 DP Control Systems 2 10 C79000 G7076 C626 01 Installing and Preparing the C7 Table 2 1 Pin Assignments of the Digital Inputs 1 2 11 2 Digital input 10 1 3 11 3 Digital input 11 1 4 1 4 Digital input 12 1 5 11 5 Digital input 13 1 6 11 6 Digital input 14 Digital Outputs Table 2 2 Pin Assignments of the Digital Outputs Pin No Signal Explanation 00 Q00 Digital output 0 0 1 Q0 1 Digital output 1 ere 2 Q0 2 Digital output 2 ECE 4 Digital output 4 Q0 5 Digital output 5 Digital output 10 Digital output 11 Q1 4 Digital output 12 Q1 5 Digital output 13 Digital output 14 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 2 11 Installing and Preparing the C7 Analog Inputs Outputs Table 2 3 Pin No AI1 U Pin Assignments of the Analog Inputs Outputs Explanation Analog input 1 signal input for voltage All I AI1 M AI2 U Analog input 1 signal input for current Analog inpu
80. lation resistance 500 VDC Status Interrupts Diagnostics Interrupts Diagnostic functions C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Data for Selecting a Sensor Input voltage e Nominal voltage e For 1 signal e For 0 signal Input current e For 1 signal Input delay time e Programmable e At 0 to 1 e At 1 to 0 Input characteristic Type of input in accordance with IEC 1131 Connection of 2 wire BEROs e Permissible quiescent current 24 VDC from 11 to 30 V from 3 to5 V from 6 to 11 5 mA No from 1 2 to 4 8 ms from 1 2 to 4 8 ms In accordance with DIN EN 61131 2 IEC 1131 Part 2 Type 2 Possible lt 2mA C7 Digital Input Output 5 2 Digital Output Function Characteristics The digital output function has the following characteristics e 16 outputs isolated e Output current 0 5 A Nominal load voltage 24 VDC e Suitable for solenoid valves and d c contactors Special Feature The digital outputs may be briefly activated under the following conditions e Applying the DI DO power supply independently of the 24V GND wiring e Applying the 24V GND if the DI DO power supply is already wired A pulse can be approximately 50 us within the permissible output voltage range You must observe this when using digital outputs in conjunction with high speed counters C7 626 C7 626 DP Control Systems 5 4 C79000 G7076 C626
81. n node addresses we recommend that you set the following address on the service programming device PC e MPI address 0 e Highest MPI address 126 Then find out the highest MPI address in the MPI network using the STEP 7 application Hardware Configuration and adjust the highest MPI address on the programming device PC to match that of the MPI network C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Connecting a Programming Device PC to a C7 Programming For startup or maintenance purposes connect the programming device PC Device PC for via a spur line to a node of the MPI network The bus connector of this node Startup or must possess a PG type connector for this purpose see also Section 3 5 A Maintenance Figure 4 3 shows two networked C7s to which a programming device PC is connected PG cable single feeder Gee o goog L T 1 a 5200 i 5 OBR QOOOOOOO lt 0 000000 ovo C7 PROFIBUS bus cable 0000 0000 o0000000 00000000 C7 Figure 4 3 Connecting a Programming Device PC to an MPI Network C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 4 5 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 C7 Digital Input Output Summary of You Will Find Sections Digital Input Function Digital Output Function Status Bi
82. n mode parameters interference Vpp lt 2 5 V EP gt 40dB Diagnostic functions Yes can be assigned e Series mode interference parameters peak value of ihe e Diagnostic information can Yes interference lt nominal be read value of input range Cross talk between the inputs Time intervals Yes can be assigned parameters e At50Hz 50 dB At60 Hz 50 dB Wire break detection Can be assigned parameters using Basic error limit operational software at measuring limit at 25 C 1 range 4 to 20 mA Data for Selecting a Sensor Input ranges nominal values input resistance e Voltage 10 V 100 KQ e Current 20 mA lt 250 Q 4to20mA lt 250Q Permissible input voltage for 18 V voltage input destruction limit Permissible input current for 30 mA current input destruction limit Connection of signal sensors e for voltage measurement Possible e for current measurement as 4 wire transducer Possible Temperature compensation Balanced by continuous on line calibration C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 C7 Analog Input Output 6 4 Analog Output Function Overview Characteristics This section contains e The characteristics of the analog output function e The technical specifications of the analog output function You will learn e How to start up the analog output function e The various ranges of the analog output function e The parameters you can use to influence the characteris
83. ntrol Systems C79000 G7076 C626 01 Glossary PG PLC Process Image Programmable Logic Controllers Programming Device RAM Reference Ground Reference Potential Programming Device Programmable Logic Controllers The signal states of the digital inputs and outputs are stored in the C7 CPU in a process image A distinction can be made between the process image input table PII and the process image output table PIQ The process image input table is read by the input modules before execution of the user program The process image output table is transferred to the output modules by the operating system at the end of the user program Programmable logic controllers PLCs are electronic controllers whose function is stored in the control device as a program The setup and wiring of the device are therefore not dependent on the function of the controller A programmable controller has the structure of a computer it consists of a CPU with memory I O modules and an internal bus system The I O and the programming language are set up according to the requirements of control engineering Programming devices are essentially personal computers that are compact and portable and suitable for industrial use They are characterized by being equipped with special hardware and software for SIMATIC programmable controllers The Random Access Memory or RAM is a read write memory in which each memory location can b
84. or is used for connecting the PROFIBUS bus cable to the MPI This is how the connection to further nodes is established There are five different bus connectors e Up to 12 Mbps PROFIBUS bus connector 6GK1500 OEA00 e Upto 12 Mbps Without PG type connector 6ES7 972 0BA 10 0XA0 With PG type connector 6ES7 972 0BB10 0XA0 e Up to 12 Mbps optionally with vertical or angular outgoing cable Without PG type connector 6ES7 972 0BA20 0XA0 With PG type connector 6ES7 972 0BB20 0XA0 The bus connectors are not required for the RS 485 repeater C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 3 17 Configuring MPI Networks and PROFIBUS DP Networks 3 5 1 PROFIBUS Bus Connector Appearance Figure 3 10 shows the PROFIBUS bus connector 6GK1500 0EA00 6GK15000 0EA00 Diagram II Bus connection for the first and last stations on the PROFIBUS BUS The cable can be connected on the left or the right Switch position to ON for the first and last stations on the PROFIBUS ON terminating resistance switched on Cable shielding must lie bare on the metal guide Diagram III Terminating resistance switched off Cable shielding must lie bare on the metal guide Figure 3 11 PROFIBUS Bus Connector C7 626 C7 626 DP Control Systems 3 18 C79000 G7076 C626 01 Configuring MPI Networks and PROFIBUS DP Networks Assembling the Connect the
85. or panels to be accessed from a central unit The nodes on the MPI can communicate with each other Each node is identified by an address MPI address The node number represents the access address of a C7 CPU C7 OP or a programming or other intelligent I O module when it communicates with other nodes via an gt MPI network The node number is assigned to the C7 CPU C7 OP and programming device In non isolated I O modules the reference potentials of the control circuit and the load circuit are electrically connected The operating system of the C7 CPU organizes all functions and processes of the C7 which are not linked to a special control task 1 A parameter is a variable of a STEP 7 logic block 2 A variable for setting the behavior of a module one or more per module Every configurable module has a basic parameter setting when it is supplied from the factory but this can be changed using STEP 7 There are two types of parameter static and dynamic parameters Parameters Dynamic or gt Parameters Static Dynamic parameters of modules in contrast to static parameters can be changed by the user program during operation by calling an SFC for example limit values of an analog signal input module Static parameters of modules in contrast to dynamic parameters cannot be changed by the user program but only using STEP 7 for example the input delay of a digital signal input module C7 626 C7 626 DP Co
86. ors Warning If you confuse the connectors the device may be destroyed C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 2 19 Installing and Preparing the C7 2 9 Arrangement of Additional S7 300 Modules Additional S7 300 You can connect further S7 300 modules to the C7 via the IM 360 interface Modules of the C7 The manual 70 describes how to install S7 300 modules Prerequisite An IM 361 module of the S7 300 system must be connected to the C7 Connecting You can connect an additional I O as follows Additional Os 1 Install the additional I O as described for racks 1 to 3 in the manual 70 2 Connect the C7 to the IM 361 via the IM standard cable see also Figure 2 8 for connecting the C7 When the C7 is first started up it detects any additional connected modules IM 360 Interface The C7 has an integral IM 360 interface module for I O expansion with an Module external S7 standard I O This interface module is characterized by the following features e Data transmission from the IM 360 to the IM 361 of the first rack expansion via a 368 connecting cable e Maximum distance between IM 360 and IM 361 10 m You can expand your C7 by up to three mounting racks using the IM 360 interface module C7 626 C7 626 DP Control Systems 2 20 C79000 G7076 C626 01 Installing and Preparing the C7 a EIEEE Slot number IM361 3 4 5 6 7 8 9 10 11 368 connecting cabl
87. ort of Back Up Batteries Storage of Back Up Batteries ZN Rules for Handling and Using Back Up Batteries Transport back up batteries where possible in their original packaging Observe the regulations for the transport of dangerous goods and substances The back up battery contains approximately 0 25 g of lithium Note According to air freight transport regulations the back up battery is in Hazardous Goods Class 9 Store back up batteries in a cool dry place Back up batteries can be stored for up to 5 years Warning Back up batteries can ignite or explode and constitute a serious fire hazard if they are heated or damaged Store back up batteries in a cool dry place To prevent hazards when using back up batteries you must observe the following rules Do not e recharge e heat e burn e drill e crush e short circuit back up batteries C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 A 7 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Guidelines for Handling Electrostatically Sensitive Devices ESD Summary of In Section Sections Bl B 2 B 3 B4 B 5 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 You Will Find What is ESD Electrostatic Charging of Objects and Persons General Protective Measures Against Electrostatic Discharge Damage Taking Measurements and Working on ESD Modules Packing Electrostatically Sensitive Devices On Page
88. owing rules when connecting the nodes of a network e Before you interconnect the individual nodes of the network you must assign the MPI address and the highest MPI address or the L2 address and the highest L2 address for each node with the exception of the RS 485 repeater Tip Mark all nodes in a network with the address on their housings In this way you can always see which node has been assigned which address in your system e Connect all nodes in the network as shown i Figure 3 5 that is integrate the stationary programming devices and OPs directly into the network Note For 3 Mbps and above you may only use bus connectors with the order numbers 6ES7 972 0B 10 OXA0 or 6ES7 972 0B 20 OXA0 for connecting nodes Connect only those programming devices OPs that are required for startup or maintenance via spur lines to the network Note For 3 Mbps and above you may only use the programming device connecting cable with the order number 6ES7 901 4BD00 0X AO to connect the programming device C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 3 5 Configuring MPI Networks and PROFIBUS DP Networks 3 6 If you are operating more than 32 nodes in a network you must link the bus segments via RS 485 repeaters In a PROFIBUS DP network all of the bus segments together must have at least one DP master and one DP slave Ungrounded bus segments and grounded bus segments are connected via RS 485 repeat
89. p28 BAF Battery fault 2 28 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Bus cable Length of spur lines 3 13 Bus connector Installing PROFIBUS bus cable Mounting bus cable Purpose Removing 3 24 Setting terminating resistance Terminating resistance To module Bus connectors Bus segment Cc C7 Installation Performance range C7 Accessories 2 2 C7 CPU Clock C7 gap 2 9 C7 OP Clock Cabinet setup 2 16 Cable for analog signals 16 6 Cable length maximum CE marking A 5 Clock C7 CPU Master OP section Communication CPU to CPU Communications processors Components for MPI network 3 7 Configuration Memory Glossary 2 Connect PG PC for service purposes Connectable components for c7 1 3 Connectors Counter input universal inputs 7 2 CPU to CPU communication Current measurement Current transducer Index 1 Index D DI DO 24 VDC power supply DI DO status bits DI DO status display exiting 5 8 Digital input universal inputs Digital input function technical specifications Digital inputs 2 10 Digital output function 5 4 Digital outputs Special features DIN E 19245 T 3 DP master F Field devices Fixing bracket Flash Memory FRCE Frequency counter universal inputs 7 3 Frequency measurement universal inputs Function keys labelin g 2 4 Function modules Functional ear
90. parameter Module Time Limits If the setpoint configuration actual configuration then the C7 DP CPU goes to RUN mode If the setpoint configuration actual configuration then the behavior of the C7 DP CPU depends on the parameter setting Startup at setpoint Actual configuration Startup at setpoint Actual Startup at setpoint Actual configuration no configuration yes default setting C7 DP CPU goes into RUN C7 DP CPU remains in STOP mode and after the mode time set in the parameter Module Time Limits has elapsed the BUSF LED flashes The flashing of the BUSF LED shows that at least one DP slave cannot be addressed In this case check whether all the DP slaves are switched on and that it matches the established configuration or display the diagnostic buffer with STEP 7 To set the parameters in the parameter block Start Up Characteristics see Section 10 11 2 in 70 and also the STEP 7 on line help C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 3 25 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Connecting a Programming Device 4 PC toaC7 Summary of You Will Find Sections Connecting a Programming Device PC to a C7 4 2 Connecting a Programming Device PC to Several Nodes C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 4 1 Connecting a Programming Device PC to a C7 4 1 Connecting a Programming Device PC to a C7 Possibilities Th
91. pered 7 Current consumption In 1000 mA max Load current power supply Supply voltage Vcm e Input voltage Protected against polarity reversal A 2 24 VDC 20 4 30 DC 2V safety extra low voltage SELV The C7 626 and C7 626 DP have no integrated protection against high energy surge pulses in the us range For information on protection regulations consult the manual 70 Chapter 4 Yes 20 ms C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 General Technical Specifications Table A 1 Technical Specifications of the C7 Safety Standardization DIN EN 61131 2 IEC 1131 2 Foreign bodies and water protection e Device front IP 65 to IEC 529 Device housing IP 20 to IEC 529 Electromagnetic compatibility EMC Emitted interference Limit value class B in accordance with EN 55022 CISPR 22 Conducted interference on AC 2kV in accordance with IEC 801 4 IEC 1000 4 4 burst voltage supply lines 1kV in accordance with IEC 801 5 IEC 1000 4 5 us pulse line to line 2kV in accordance with IEC 801 5 IEC 1000 4 5 us pulse line to ground With protective element lightning conductor KT type AD 24 V from the Dehn company Noise immunity on signal lines 2kV in accordance with IEC 801 4 IEC 1000 4 4 burst 1kV in accordance with IEC 801 5 IEC 1000 4 5 us pulse line to line 2kV in accordance with IEC 801 5 IEC 1000 4 5 us pulse line to ground
92. personal injury or property damage can result if proper precautions are not taken Note draws your attention to particularly importantinformation on the product handling the product orto a particular part of the documentation 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 Note the following Warning This device and its components may only be used forthe 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 product can only function correctly and safely if itis transported stored setup and installed correctly and operated and maintained as recommended 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 1996 All rights reserved The reproduction transmission or use of this documentor its contents is not permitted withoutexpress written authority Offenders will be liable
93. programming device PC with a C7 Printer prints out O I messages of the C7 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Product Overview Table 1 1 Connectable Components of a C7 Components Function Illustration Programming device PG or PC configures assigns with the STEP 7 and ProTool parameters programs and tests software packages the C7 RS 485 repeater for amplifying the signals in an MPI network or L2 DP i network and for linking a E segments of an MPI or L2 DP ale network Example Figure 1 2 shows some possible connections to other devices and the connection of signal inputs 7 300 1 Si E OP 25 E 87 300 BEHEER S98 modules fi Analog inputs outputs Universal inputs Digital inputs outputs 2 SSN Printer PROFIBUS DP connection Multipoint interface MPI Figure 1 2 Some C7 Connection Possibilities C7 626 C7 626 DP Control Systems C79000 G7076 C626
94. racteristics The analog input module has the following characteristics e 4 inputs e Measured value resolution 12 bits including sign e Measurement type selectable Voltage Current e Choice of measuring range per input e Diagnostics which can be assigned parameters e An interrupt which can be assigned parameters e An interrupt cycle which can be assigned parameters e Isolated C7 626 C7 626 DP Control Systems 6 10 C79000 G7076 C626 01 C7 Analog Input Output Terminal Figure 6 7 shows the terminal connection diagram of the analog inputs Connection Diagram View of right hand side of C7 O Analog inputs Voltage measurement Current measurement Aan u as er a 4 ATI I OF oe zs el AT M gt S o2 9 AI2 U ae ae e AI2 I a o V 5 oe 28 o AI2 M 6 as 6 S ce e AB U ae a AE e AB I v 8 e AB M Gang 9 S 10 10 e AI4 U a 11 es 11 e AI4 I y ef AI4 M WS 12 Mana o Pinout diagram s o 2o o ae o o o Mii o Parts with this shading are not relevant Pin No ae to this example Figure 6 7 Terminal Connection Diagram of the Analog Inputs Caution The jumper between pins 1 2 4 5 7 8 10 11 must also be wired in the case of current measurement C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 6 11 C7 Analog Input Output Channels Three pins are combined to form a channel
95. rameters Statement List for Hardware and Installation ProTool S7 300 and S7 400 Ladder Logic for na S7 300 and 7 400 Module Specifications System and Standard Functions STEP 7 User Manual pot te C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 vV Preface Table 1 1 STEP 7 Documentation Package Manual Contents Standard Software for S7 Provides information on working with the STEP 7 tools and M7 e Installing and starting up STEP 7 on a programming device PC STEP 7 User Manual e Handling tools with the following contents Managing projects and files Configuring and assigning parameters to the S7 300 Assigning symbolic names for the user program Creating and testing the user program in STL LAD Creating data blocks Configuring communications between several CPUs Loading storing and deleting the user program in the programming device CPU Monitoring and controlling the user program for example variables Monitoring and controlling the CPU for example operating mode memory reset memory compression protection levels Statement List for Reference manual for programming with STL or LAD S7 300 S7 400 Basics for working with STL LAD for example structure of STL LAD number Programming Manual formats syntax or Description of all operations in STEP 7 with programming examples Ladder Logic for Description of the different addressing possibilities in STEP 7 with examples S7 300 S7 400
96. rily connected to the L2 DP network at a later stage if required You should therefore assign other L2 addresses to the programming devices included in the L2 DP network You connect the individual nodes via the bus connectors and the PROFIBUS bus cable Remember to provide for the nodes a bus connector with programming device socket to which a programming device can be connected if required see also Section 3 5 Use the RS 485 repeater for connections between segments or for extending cables See the reference manual 71 for details of how to install and use a repeater A cable must be terminated with a surge impedance To do this switch on the terminating resistance at the first and last node of the network At least one of these two nodes must be supplied with power Figure 3 2 shows you where to connect the terminating resistance on the bus connector Terminating Terminating resistance resistance switched on off switched off Figure 3 2 Terminating Resistance on the Bus Connector C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 3 7 Configuring MPI Networks and PROFIBUS DP Networks Terminating Figure 3 3 shows you where to connect the terminating resistance on the Resistance On RS 485 repeater RS 485 Repeater DC L m PE ms 2 24 06890888 So A b 0998 A1 B1A1B ee
97. rogram if data from the C7 CPU can no longer be read Proceed as follows e Mechanical removal takes place in the opposite order to the installation e Connect a programming device PC to the MPI e Use STEP 7 to transfer the user program stored in the C7 CPU toa programming device PC If the C7 CPU is defective and the user program can no longer be displayed remove the C7 without any further safety measures e The configuration loaded onto the C7 cannot be displayed It must be available on a programming device PC As soon as you have a new C7 install it as follows 1 The mechanical and electrical installation is as described in the manual Connect a programming device PC to the MPI Perform a memory reset of the C7 as described eS Transfer the previously saved user program from the programming device PC with the relevant data to the C7 CPU using STEP 7 mi Load your configuration with ProTool into the C7 6 Start the user program C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 General Technical Specifications What Are General This chapter lists the general technical specifications of the C7 Technical Specifications These general technical specifications contain the standards and test values that the C7 conforms to or the criteria against which the C7 has been tested Summary of In Section You Will Find Sections A l Technical Specifications A 2 Notes on the CE Marking A 3 Notes for the Machin
98. ross sections and be laid over a large surface Insulate analog devices in the switching cabinet and ground them to a single point in the cabinet using copper tape Always use equivalent metals for the materials Never use aluminum danger of oxidation Connect all doors and metal parts sides back and cover of the cabinet at least three times to the cabinet frame short paint free large area connections C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Installing and Preparing the C7 Protection Against Overvoltage C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Note If your system generates high electrostatic voltages for example textile machines and special construction machines run the grounding lines of the machine parts carrying interference signals to a separate operating ground isolated from the central grounding point of the cabinet surface grounding with housing construction reinforcement To protect your device from overvoltage and lightning please observe the guidelines in 70 Section 4 11 For routing wires within buildings please observe the guidelines in 70 Section 4 8 2 17 Installing and Preparing the C7 2 7 Connecting Shielded Cables Overview Procedure 2 18 This section describes how to connect the shield of shielded signal lines to ground The ground connection is made by directly connecting the shield with the ground terminal of the C7 Pro
99. ry during power on only Proceed as follows to change the back up battery Unscrew the cover of the C7 battery compartment see Figure 8 1 Lift the cover up and to the right se Figure 8 2 Make sure you raise the cover only as far as the battery connections allow Remove the battery connector of the old back up battery Loosen the cable binders with which the back up battery is attached to the cover see Figure 8 3 Attach the new back up battery with the cable binders to the cover Plug the battery connector of the new back up battery into the relevant socket in the battery compartment of the C7 The notch on the battery connector must point to the left seq Figure 8 3 7 Close the battery cover with the springs to the left onto the C7 and screw the cover tight again Note Do not touch any interior components of the C7 with your hands or a metal part screwdriver Electrical components and printed circuit boards are not sufficiently protected for this purpose Please observe ESD guidelines C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Maintenance Battery cover Cable binder Figure 8 1 Battery Cover Before Opening Figure 8 2 Battery Cover C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 8 3 Maintenance Figure 8 3 Inserting the Back Up Battery How Often Should You Change the Battery Disposal Stora
100. s for the C7 e Programming device cable 6ES7 901 OBF00 0AAO for connecting the C7 to the programming device e PC MPI cable 5 m 6ES7 901 2BF00 OAA0 e IM cable for connecting additional modules IM cable 1 m 6ES7 368 3BB00 0AA0 IM cable 2 5 m 6ES7 368 3BC51 0AA0 IM cable 5 m 6ES7 368 3BF00 0A A0 IM cable 10 m 6ES7 368 3CB00 0AA0 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Installing and Preparing the C7 e Printer cable for V 24 serial interface 6XV 1440 2C max 16 m e Serial cable PG C7 6XV 1440 2K The following applies for the length key of both cables 6XV1440 2C Multiplier 0 01 m 0 1 m 1 0m 10 0 m 100 0 m qxzinnm DOADA UNNE Pee eehelo gt SWODONNOAWUDN o Length digit 10 12 15 16 20 25 32 40 50 60 63 80 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 2 3 Installing and Preparing the C7 2 2 Inserting the Labeling Strips Labeling Strips Plant Specific Labeling ZN 2 4 The function keys and softkeys are labeled using labeling strips which are inserted into the keypad from the side When shipped the function keys of the C7 are labeled with K1 K10 and the softkeys with F1 F14 A set of blank labeling strips is enclosed with the C7 They can be used for plant specific labeling of the C7 Caution The writing on the strips must be wipe resistant before inserting A keypad membrane soile
101. sal Inputs C7 626 C7 626 DP Control Systems 7 2 C79000 G7076 C626 01 Universal Inputs Pin Assignments of the Universal Inputs Assigning Parameters to the Inputs Interrupt Input Digital Input Counter Input Frequency Counter Period Duration Counter The pin assignments of the universal inputs are as follows Table 7 1 Assignments of the Universal Inputs Function Relevant ground Universal input 1 interrupt input digital input or counter input Universal input 2 interrupt input digital input or counter input Universal input 3 interrupt input digital input counter input frequency counter input or period duration counter input Universal input 4 interrupt or digital input Not connected Not connected Not connected The universal inputs are set with the software This is done using the STEP 7 application Hardware Configuration You use this application to determine which function the individual input is to execute see Table 7 1 If this function is set the input responds like a normal interrupt input that is a hardware interrupt is triggered in the C7 CPU as a response to the edge with assigned parameters If this function is set the input responds like a normal digital input see Section 5 2 The only difference here is that the current process signal is not automatically fed to the control program but must first be read in from the T O These universal
102. t 1 reference potential Analog input 2 signal input for voltage AI2 I AI2 M AI3 U Analog input 2 signal input for current Analog input 2 reference potential Analog input 3 signal input for voltage AI3 I AI3 M AI4 U AI4 I AI4 M Mana AO U AO I Analog input 3 signal input for current Analog output signal output for current AO M Analog output reference potential AUX Digital Inputs Universal Inputs Table 2 4 Pin No M Pin Assignments of the Universal Inputs Explanation Relevant ground DI X1 DI X2 DI X3 Universal input 1 digital input interrupt input or counter input Universal input 2 digital input interrupt input or counter input Universal input 3 digital input interrupt frequency or period duration counter input DI X4 Universal input 4 interrupt input or digital input Not connected Not connected 2 12 Not connected C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Installing and Preparing the C7 DI DO 24 VDC Power Supply Table 2 5 Pin Assignments of the DI DO Power Supply Explanation 24 volt supply for DI 0 0 1 7 Relevant ground for DI 0 0 1 7 24 volt supply for DO 0 0 DQ0 7 approx 2 A 24 volt supply for DO 0 0 DQ0 7 approx 2 A Relevant ground for DO 0 0 DQ0 7 24 volt supply for DO 1 0 DQ1 7 approx 2 A 24 volt supply for DO 1 0 DQ1 7 approx 2 A 3M Relevant ground
103. th G Gap C7 GD circle Grounding Grounding rail Installing Group error CPU H Hardware setup interference proof Highest MPI address 3 3 IM360 IM360 interface module IM361 cable 2 2 Installation interference proof Installing a C7 Index 2 Interface module 1 3 Interference signals Interference proof installation Interrupt input universal inputs 7 3 K Keying connectors 2 19 M Master clock Measuring ranges 4 wire transducer Analog input 6 9 Module time limits Modules transport and storage conditions A 7 Mounting bus cable to bus connector 6ES7 3 20 MPI Pin assignments 2 14 MPI address Highest Of FMs and CPs 3 4 Of the C7 Recommendation Rules 3 4 MPI network Components B 7 B 15 Connecting a zz device Data packets in Example for configuring 3 9 Rules for configuring Segment 3 12 Setup example N Network components Nodes 3 2 Number O op 1 4 Operating system test startup 2 25 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Index P Performance range c7 1 3 Period duration counter universal inputs 7 2 7 3 PG PC via spur line to MPI network Pin assignments 2 10 Plug and socket connectors view Printer Printer cable Printer connection PROFIBUS address 3 Recommendation PROFIBUS bus cable Assembling 3 19 Characteristics Rules for cable laying 3 16 To
104. the bus connector draws its power from the node the terminating resistance is ineffective Make sure that the stations at which the terminating resistance is switched on are always supplied with power C7 626 C7 626 DP Control Systems 3 24 C79000 G7076 C626 01 Configuring MPI Networks and PROFIBUS DP Networks 3 6 Starting Up the PROFIBUS DP Introduction Prerequisites Starting Up Behavior of the C7 DP CPU on Startup In this section you are shown how to proceed when starting up a PROFIBUS DP network with a C7 626 DP as a DP master Before you can start up the PROFIBUS DP network the following steps must be carried out e The PROFIBUS DP network must be set up see Section 3 1 e Using STEP 7 you must have configured the PROFIBUS DP network and assigned all nodes an L2 address and an address space see 70 Note that with some DP slaves a PROFIBUS address switch must be set see description of the relevant DP slaves Start up the PROFIBUS DP network as follows 1 Using STEP 7 load the configuration of the PROFIBUS DP network setpoint configuration using the programming device into the C7 DP CPU This is described in 70 2 Switch on all DP slaves 3 Switch the C7 DP CPU from STOP to RUN On startup the C7 DP CPU checks the setpoint configuration with the actual configuration You can adjust the length of the check with STEP 7 in the parameter block Start Up Characteristics with the
105. ther the RUN P RUN STOP or MRES function by pressing 0eo HELP simultaneously C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 Installing and Preparing the C7 This operation is only necessary if the basic configuration has been loaded DI DO CPU MODE 00000000 00000000 11001000 10101000 RUN K1 F9 F10 F11 F12 F13 F14 K2 Figure 2 15 C7 CPU Operating Modes Menu with Corresponding Function Keys Choosing a C7 CPU Operating Mode C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 With the softkeys F9 F14 you can select one of the C7 CPU operating modes displayed on the screen 2 27 Installing and Preparing the C7 2 12 Status and Error LEDs on the C7 Status and Error The C7 626 C7 626 DP has the following status and error LEDs LEDs E SF BAF DC5V C FRCE RUN STOP Figure 2 16 Status and Fault LEDs of the C7 626 C7 626 DP Meaning of the The status and error LEDs are explained in the order in which they are Status and Error arranged on the C7 LEDs Display Meaning Explanation SF red C7 CPU group error Lights up in the event of e Hardware faults e Firmware errors e Programming errors Parameter assignment errors Arithmetic errors Timer errors Defective internal memory e Battery failure or no backup during power on e
106. tics of the analog output function e The technical specifications of the analog output function The output function has the following characteristics e 1 output e The output can be selected either as Voltage output or Current output e Resolution 12 bits including sign e Diagnostics which can be assigned parameters e Isolated Note If you modify the output ranges during operation of the analog output function intermediate values can arise at the output C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 6 15 C7 Analog Input Output Terminal Figure 6 11 shows the terminal connection diagram of the analog output Connection function Diagram View of right hand side of C7 o o o o o o o o o o o o o o o o o o o o o o o o o o Voltage output Current output Ao U o Analog output l4 Ao l if 15 v 0 i AO M 6 N o i B E o 2 Terminal i connection ae diagram o o o o Pin No Parts with this shading are not relevant to this example Figure 6 11 Terminal Connection Diagram of the Analog Output Function Block Diagram shows the block diagram of the analog output module You will find detailed technical specifications of the analog output module on the following pages C7 626 C7 626 DP Control Systems 6 16 C79000 G7076 C626 01 C7 Analog Input Output
107. ts a C7 with an expansion rack for S7 300 modules Signal modules SMs pass different process signal digital input modules levels on to the C7 CPU They digital output modules can be connected to the C7 via analog input modules an IM361 analog output modules analog input output modules o C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 1 3 Product Overview Table 1 1 Connectable Components of a C7 Function Illustration Components Function modules FMs for time critical and memory intensive process signal handling tasks for example positioning or closed loop control Communications processors CP Offloads the CPU of communications tasks for example CP 342 5 DP for linking to SINEC L2 DP S7 300 CPU 87 400 CPU Operator Panels OP PROFIBUS bus cable with bus connector Programming device cable communicates via the MPI with the C7 and or other nodes on an MPI network communicates via the MPI with the C7 and or other nodes on an MPI network executes operator interface functions and communicates with the C7 via the multipoint interface connects nodes on an MPI network or L2 DP network with each other connects a
108. ts of the DI DO C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 5 1 C7 Digital Input Output 5 1 Digital Input Function Characteristics The digital input function has the following characteristics e 16 inputs isolated as a group e Nominal input voltage 24 VDC e Suitable for switches and 2 wire proximity switches BEROs for example Terminal Figure 5 1 shows the terminal connection and the block diagram of the Connection and digital input function Block Diagram sensuer anan nei g v 5 ke f Z 24 V for DI Ground for DI L Channel number Pin No js 2 3 3 S O A O NX 1L T Y N 7 AFF Minternal Block diagram Parts with this shading are not relevant to this example Figure 5 1 Terminal Connection and Block Diagram of the Digital Input Function 5 2 C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 C7 Digital Input Output Specific Data of the Digital Input Function Number of inputs 16 Cable length e Unshielded 600 m Voltages Currents Potentials Nominal load voltage L 24 VDC Number of simultaneously 16 energizable inputs Galvanic isolation Yes optocoupler e In groups of 16 Permissible potential difference e Between the M terminals of the groups e Insu
109. y You can select the function by pressing simultaneously 060 HELP DI 00000000 0 7 0 0 eee 00000000 1 7 1 0 E L E DO 11001000 0 7 0 0 10101000 1 7 1 0 CPU MODE RUN K1 F9 F10 F11 F12 F13 F14 K2 S o Figure 5 3 DI DO Status Bits in a C7 Table 5 1 Explanation of the DI DO Display in Figure 5 3 Explanation Signal state of the DI DO e 1 DI DO set e 0 DI DO reset Pin number from to See also connector pin assignment in Section C7 626 C7 626 DP Control Systems C79000 G7076 C626 01 5 7 C7 Digital Input Output Note The values of the DI DO are read and displayed every 500 ms default value Changes which occur between these times are not displayed Exiting the DI DO Exit the DI DO status display by pressing F14 Status Display C7 626 C7 626 DP Control Systems 5 8 C79000 G7076 C626 01 C7 Analog Input Output Summary of In Section You Will Find On Page Sections 6 1 Connecting Transducers to Analog Inputs 6 2 6 1 1 Connecting Voltage and Current Transducers 6 5 6 2 Connecting Loads Actuators to the Analog Output 16 6 6 3 Analog Input Function 6 9 6 3 1 Characteristics and Technical Specifications of the Analog Input Module 6 4 Analog Output Function 6 15 Ungrounded The C7 cannot be installed in an ungrounded configuration Configuration C7 626 C7 626 DP Control Systems 6 1 C79000 G7076 C626 01 C7 Analog

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