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1756-PM001C-EN-P, Logix5000 Controllers Common Procedures

1. A L LR Sources 0 0 REAL B En 7 SourceB 0 0 REAL ID EnableOut 0 BOOL M Dest 0 0 REAL C 42584 B Edit the properties for the block To Do this show a pin for an operand Select the check box next to the operand A enter an immediate value A Clear uncheck the check box next to the operand B B In the Value column type the value for the operand C change the name of the tag for the A Click the Tag tab D instruction B Type a new name C Choose OK 3 Wire output pins to input pins Click an output pin and then click the required input pin A green dot indicates a valid pin Publication 1756 PM001C EN P June 2001 4 6 Program Routines Step 4 To supply a value from an input device or a tag enter an input reference IREF 42586 Detailed actions A B C Press the Insert key Choose OK IREF is the default selection Drag the IREF to the desired location typically to the left of the block that uses the value Click the pin of the IREF and then click the input pin that uses the value 5 To supply a value to an output device or a tag enter an output reference OREF UOWY Press the nsert key Type OREF Choose OK Drag the OREF to the desired location typically to the right of the block that produces the output value Click the output pin that supplies the value and then click the pin of the OREF
2. H Controller name of controller H Controller name of controller H E Tasks H E Tasks J Trends Trends 6 Data Types Data Types i User Defined Cg User Defined 3 0 Strings Ei STRING E G New String Type Lg Predefined Cg Prede Lg Module Defined yh Mode 3 1 0 Configuration 42811 Ca 1 0 Confi Bue 42812 You can use the default STRING data type or You can create a new string data type to store the It stores up to 82 characters number of characters that you define Each string data type contains the following members Name Data Type Description Notes LEN DINT number of characters The LEN automatically updates to the new count of characters whenever you in the string e use the String Browser dialog box to enter characters e use instructions that read convert or manipulate a string The LEN shows the length of the current string The DATA member may contain additional old characters which are not included in the LEN count DATA SINT array ASCII characters of the e To access the characters of the string address the name of the tag string For example to access the characters of the string 1 tag enter string 1 e Each element of the DATA array contains one character e You can create new string data types that store less or more characters Publication 1756 PM001C EN P June 2001 Glossary 31 New string da
3. No E dits id Forces Disabled Path TCP 34130 130 130 2 B ack controller organizer 4 Save Your Changes Publication 1756 PM001C EN P June 2001 lane 1 troller name of controlle name of the controller Controller Tags Controller Fault Handler 3 Power Up Handler a Tasks a MainT ask B E MainProgram A Program Tags E conveyor 1 JE MainRoutine B north tank 42371 As you create logic and make configuration changes save the project To save your changes Do this From the File menu select Save make a copy of the open project but keep the existing name of A From the File menu select Save As B Type a name for the project file Use the controller underscores _ in place of spaces C Click Save make a copy of the project and A From the File menu select Save As assign a different name to the Type a name for the project file Use controller underscores _ in place of spaces C Click Save D In the controller organizer right click Controller name o controller folder and select Properties E Type a new name for the controller F Click OK Manage Project Files 1 3 Notes Names download to the controller while documentation descriptions rung comments does not download to the controller To change the name chassis size or slot number of the controller a In the controller organizer right click the Controller
4. 6 To connect blocks that are far apart or on different sheets enter an output wire connector OCON and an input wire connector ICON Publication 1756 PM001C EN P June 2001 OO OX rn jj LOQ mnm Press the nsert key Type OCON Choose OK Drag the OCON to the desired location typically to the right of the block that produces the value Click the output pin that produces the value and then click the pin of the OCON Display the sheet that contains the block to which you want to connect Press the nsert key Type ICON Choose OK Drag the ICON to the desired location typically to the left of the block that uses the value Click the pin of the ICON and then click the input pin that uses the value Program Routines 4 7 Assign Operands Each instruction requires one or more of the following tag name e value name of a routine label wire connector etc The following table outlines the format for a tag name For a tag Specify tag name bit number of an larger data type tag name bit number member of a structure tag name member name element of a one dimension array tag name x element of a two dimension array tag name x y element of a three dimension array tag name x y z element of an array within a structure tag name member name x member of an element of an array where tag name x y z
5. Force input or output values Refer to Force Values on page 14 1 Configure a Communication The RSLogix 5000 software requires a communication driver to Driver communicate with a controller You configure communication drivers using RSLinx software 1 Start RSLinx software 2 From the Communications menu select Configure Drivers 3 From the Available Driver Types drop down list select a driver For this type of communication card Select this type of driver serial RS 232 DF1 Devices DH 1784 KT KTX D PKTX D ControlNet 1784 KTQ X Ethernet Ethernet devices 4 Click Add New 5 If you want assign a descriptive name to the driver change the default name 6 Choose OK Publication 1756 PM001C EN P June 2001 9 2 Test a Project Download a Project to the Controller Publication 1756 PM001C EN P June 2001 7 Configure the driver m Forthis driver Do this serial A From the Comm Port drop down list select the serial port that the driver will use B From the Device drop down list select Logix 5550 Serial Port C Click Auto Configure ControlNet A Inthe Station Name box type a name that will identify the computer in the RSWho window B Select the interrupt value memory address and 1 0 base address C In the Net Address box type the ControlNet node number that you want to assign to the computer DH A From the Value drop down list select the t
6. fae Controller name of controller If you want to Select one of these modes Run Program Remote Run Program Test turn outputs to the state v v commanded by the logic of the project turn outputs to their configured v v v state for Program mode execute scan tasks v v v change the mode of the controller v v v through software download a project v v v v schedule a ControlNet network v v while online edit the project v v v v send messages v v v send and receive data in response to v v v v v a message from another controller produce and consume tags v v v v v Publication 1756 PM001C EN P June 2001 9 4 Test a Project Correct Major Faults If the controller status box is red and displays Faulted a major fault occurred and the controller is no longer executing the logic Save Your Online Changes Publication 1756 PMO001 C EN P June 2001 If the controller enters the faulted mode a major fault occurred and the controller stopped executing the logic RSLogix 5000 name of controller 1756 L1 File Edi View Search Logic Communications Tools Window Help ae 8 He oje tanks 0 1 p Ottine No Forces x 4 H No Edits Forces Disabled Et Path TCP 34130 130 130 2 Backplane 1 fam Controller name of controller To correct a major fault 1 From the Communications menu
7. DTOS DINT to String Source Dest Publication 1756 PM001C EN P June 2001 INSERT DTOS CONCAT Insert String DINT to String String Concatenate Source Source B Start Dest 11 12 13 14 15 Source Source Dest i Source B Dest 15 Enter the DINT tag that contains the second value for the string Enter a tag name to store the ASCII representation of the value Define the data type as a string Enter the tag that stores the partially completed string The tag from step 10 Enter the tag that stores the ASCII representation of the second value The tag from step 12 Enter a tag name to store the completed string Define the data type as a string Process ASCII Characters 13 15 EXAMPLE To trigger a message in a MessageView terminal the controller sends the terminal a message in the following format Ctrl T message address CR When send_msg is on the rung does the following The first DTOS instruction converts the message number to ASCII characters The INSERT instruction inserts the message number in ASCID after the control character Ctrl T The hex code for Ctrl T is 14 e The second DTOS instruction converts the node number of the terminal to ASCII characters The CONCAT instruction puts the node number in ASCID after the backslash and stores the final string in msg To send the message an AWA instruction sends the msg tag and ap
8. Every minute minor fault cbeck DN turns on for one scan When this occurs the GSV instruction gets the value of the FAULTLOG object MinorFaultBits attribute and stores it in the minor fault bits tag Because the GSV instruction only executes once every minute the scan time of most scans is reduced minor fault check DN If minor fault bits 10 is on then the battery is low minor fault bits 10 T Publication 1756 PM001C EN P June 2001 GSV Get System Value Class name FAULTLOG Instance name Attribute Name MinorFaultBits Dest minor_fault_bits pe battery low warning 42373 Monitor Minor Faults 17 3 The following example checks for a minor fault that is caused by a specific instruction EXAMPLE Check for a minor fault that is caused by an instruction Multiplies value_a by 1000000 and checks for a minor fault such as a math overflow To make sure that a previous instruction did not produce the fault the rung first clears SSMINOR The rung then executes the multiply instruction If the instruction produces a minor fault the controller sets SSMINOR If S MINOR is set the GSV instruction gets information about the fault and resets S MINOR S MINOR UL Multiply Source value_a pe Source B 1000000 Dest value_b pe S MINOR GSV S MINOR Get System Value Class name PROGRAM Instance name THIS Attribute Name MINORFAULTRECORD Dest minor_fault_record Time_Low IL
9. 9 Enter a tag name to store the location of the delimiter Define the data type as a DINT Publication 1756 PM001C EN P June 2001 13 10 Process ASCII Characters Publication 1756 PM001C EN P June 2001 10 11 12 13 14 10 11 IND Find String Source MID Middle String Source Qty Start Search Start Result Dest 42810 12 13 Enter the string tag that contains the value Enter the maximum number of characters that this value can contain Enter the tag that stores the position of the delimiter The tag from step 9 Enter a tag name to store this value Define the data type as a string Which type of conversion instruction did you use If Then STOR Go to step 15 STOD Go to step 18 Process ASCII Characters 13 11 15 16 IND MID STOR Find String Middle String String to Real Source Source Source Search Oty Dest Start Start Result Dest 42809 15 Enter the tag that stores the value The tag from step 13 16 Enter a tag name to store the value for use in your application Define the data type as REAL 17 Go to step 20 18 19 IND Find String Source MID Middle String Source Oty Start STOD String To DINT Source Dest Search 42809 Start Result Dest 18 Enter the tag that stores the value The t
10. If the controller is configured to run multiple tasks elapsed time includes any time used shared by other tasks performing other operations While online you can use the Task Properties dialog box to view the maximum scan time and the last scan time in ms for the current task These values are elapsed time which includes any time spent waiting for higher priority tasks See execution time electronic keying A feature of the 1756 I O line where modules can be requested to perform an electronic check to insure that the physical module is consistent with what was configured by the software Enables the user via the software to prevent incorrect modules or incorrect revisions of modules from being inadvertently used See compatible module disable keying exact match Glossary 11 element An addressable unit of data that is a sub unit of a larger unit of data A single unit of an array You specify an element in an array by its subscript s For this array Specify one dimension array_name subscript_0 two dimension array name subscript O0 subscript 1 three dimension array name subscript O0 subscript 1 subscript 2 See array exact match An electronic keying protection mode that requires that all attributes vendor catalog number major revision and minor revision of the physical module and the module configured in the software match in order to establish a connection to the module execution ti
11. sign data type timer_presets 1 DINT Beale alamanteor EH timer presetst DINT Sx DINTS timer presets timer_presets 3 DINT EHtimer_presets 4 Hl timer_presets 5 4 Monitor Tags 42367 e An array tag occupies a contiguous block of memory in the controller each element in sequence You can use array and sequencer instructions to manipulate or index through the elements of an array An array can have as many as three dimensions This gives you the flexibility to identify an element using one two or three subscripts coordinates Publication 1756 PM001C EN P June 2001 Glossary 3 In an array with two or three dimensions the right most dimension increments first in memory Program Tags MainProgram Scope MainProgram Show Show All sot fr 3 Alias For H hole_position REAL E 6 amp This array contains a ole position 0 0 D REAL two dimensional grid I1 M denen i ioe pos 2 A mpi REA ole position 0 4 PORE tele poser Pepe S e rea ole position 1 2 REA hae sostoi PEA 42367 The right most dimension increments to its maximum value When the right most dimension then starts over starts over the dimension to the left increments by one Publication 1756 PM001C EN P June 2001 Glossary 4 The total number of elements in an array is the product of
12. 1 ALLEN BRADLEY DR MAYFIELD HEIGHTS OH 44124 9705 PLEASE REMOVE ASCII Character Codes Character Dec Hex Character Dec Hex Character Dec Hex Character Dec Hex ctrl NUL 0 00 SPACE 32 20 64 40 96 60 ctrl A SOH 1 01 33 21 A 65 41 a 97 61 ctrl B STX 2 02 34 22 B 66 42 b 98 62 ctrl C ETX 3 03 35 23 C 67 43 C 99 63 ctrl D EOT 4 04 36 24 D 68 44 d 100 64 ctrl E ENQ 5 05 37 25 E 69 45 e 101 65 ctrl F ACK 6 06 amp 38 26 F 70 46 102 66 ctrl G BEL 7 07 39 27 G 71 47 g 103 67 ctrl H BS 8 08 40 28 H 72 48 h 104 68 ctrl 1 HT g 09 41 29 73 49 i 105 69 ctrl J LF 10 I 0A 3 42 2A J 74 4A j 106 6A ctrl K VT 11 0B 43 2B K 75 4B k 107 6B ctrl L FF 12 0C 44 2C L 76 4C 108 6C ctr M CR 13 r 0D 45 2D M 7 4D m 109 6D ctri N SO 14 0E 46 2E N 78 4E n 110 6E ctrl O SI 15 0F 47 2F 0 79 4F 0 111 6F ctrl P DLE 16 10 0 48 30 P 80 50 p 112 70 ctrl O DC1 17 11 1 49 31 0 81 51 q 133 71 ctrl R DC2 18 12 2 50 32 R 82 52 r 114 72 ctrl S DC3 19 13 3 51 33 S 83 53 S 115 73 ctrl T DC4 20 14 4 52 34 T 84 54 t 116 74 ctrl U NAK 21 15 5 53 35 U 85 55 u 117 75 ctrl V SYN 22 16 6 54 36 V 86 56 V 118 76
13. 4 array ack DINT 2 array_packet DINT 125 where array is the name for the data that you are sending Use the same name as in the producing controller step 2 Convert array packet to a consumed tag For Specify Controller name of the controller that is sending the packet Remote Tag Name array packet Both controllers use the same name for this shared data Refer to Consume a Produced Tag on page 10 5 In either the Controller Tags folder or the tags folder of the program that will contain the logic for the transfer create the following tags Tag Name Type array DINT x where x equals the number of elements to transfer plus 122 elements array offset DINT where array is the name for the data that you are sending Create or open a routine for the logic that will move the data from the packets to the destination array Publication 1756 PM001C EN P June 2001 11 6 Produce a Large Array 13 Enter the following logic When the offset value in array_packet 123 is different than the offset value in array_ack O the controller has begun to receive a new packet of data so the rung checks for the value of 999 in the last element of the packet If the last element of the packet equals 999 the controller has received an entire packet of new data and begins the copy operation The offset value moves from the packet to array offset The COP instructions copies the data from the packet to the
14. Members can be structures as well creating nested structure data types Each member within a structure can be a different data type To reference a member in a structure use this format tag name member name For example This address References the timer 1 pre PRE value of the timer 1 structure input load as data type load info height member of the user defined input load structure input load height If the structure is embedded in another structure use the tag name of the structure at the highest level followed by a substructure tag name and member name tag name substructure name member name For example This address References the input location as data type location height member of the oad info structure in the input location input location load info height structure Publication 1756 PM001C EN P June 2001 Glossary 18 e If the structure defines an array use the array tag followed by the position in the array and any substructure and member names array tag position member Or array tag position substructure name member name For example This address References the conveyor 10 source source member of the 11 element in the conveyor array array elements are zero based conveyor 10 info height height member of the info structure in the 11 element of the conveyor array array elements are zero based See structure memory Electronic storage media b
15. Source B AA SerialPort Control SerialPort Control Length Characters Read 42235a 7 Enter the POS member of the ACB tag The tag from step 4 8 Enter the number of characters in the data 9 Enter 0 10 Enter a tag name to store the ASCII characters Define the data type as a string 11 Enter a tag name for the ARD instruction and define the data type as SERIAL_PORT_CONTROL 12 Enter the number of characters in the data Communicate with an ASCII Device 12 11 bar code contains 24 characters To determine when the controller receives a bar code EXAMPLE A bar code reader sends bar codes to the serial port channel 0 of the controller Each the ACB instruction continuously counts the characters in the buffer bar_code_count EN ACB ASCII Chars in Buffer Channel 0 SerialPort Control bar_code_count Character Count 0 When the buffer contains at least 24 characters the controller has received a bar code The ARD instruction moves the bar code to the bag_bar_code tag GEQ ARD Grtr Than or Eq A gt B ASCII Read Source bar code count pos Channel 0 0 Destination bag bar code ND Source B 24 SerialPort Control bar code read ERD String Length 24 Characters Read 0 4222 13 Do you want to send data to the device If Then yes Go to Send Characters to the Device on page 12 14 no Stop You are done with this procedure To us
16. The actual production of data is constrained to the largest multiple of the network update time that is smaller than the selected RPI Use a power of two times the ControlNet network update time NUT For example if the NUT is 5 ms type a rate of 5 10 20 40 ms etc See network update time NUT routine A set of logic instructions in a single programming language such as a ladder diagram Routines provide the executable code for the project in a controller similar to a program file in a PLC or SLC controller Fach program has a main routine When the controller triggers the associated task and executes the associated program the main routine is the first routine to execute To call another routine within the program enter a JSR instruction in the main routine You can also specify an optional program fault routine If any of the routines in the associated program produce a major fault the controller executes program fault routine See program task S scan time See elapsed time execution time Publication 1756 PM001C EN P June 2001 scope Glossary 29 Defines where you can access a particular set of tags When you create a tag you assign scope it as either a controller tag or a program tag for a specific program as depicted below co Controller example A Controller Tags 4 Controller Fault Handler tags that all routines and external dev
17. 42373 Publication 1756 PM001C EN P June 2001 17 4 Monitor Minor Faults Notes Publication 1756 PM001C EN P June 2001 When to Use This Procedure Develop a Power Up Routine Chapter 18 Develop a Power Up Routine The power up handler is an optional task that executes when the controller powers up in the Run mode p e Controller example Controller Tags J Controller Fault Handler J Power Up Handler B E Tasks Ea MainT ask MainProgram Ej Program Tags E MainRoutine 42195 Use the power up handler when you want to accomplish either of the following after power is lost and then restored Prevent the controller from returning to Run mode The power up handler will produce a major fault type 1 code 1 and the controller will enter the Faulted mode Take specific actions and then resume normal execution of the logic The steps to develop a power up routine are similar to the steps to develop a fault routine 1 Create a user defined data type that will store the fault information Name the data type FaultRecord and assign the following members Name Data Type Style TimeLow DINT Decimal TimeHigh DINT Decimal Type INT Decimal Code INT Decimal Info DINT 8 Hex 2 Create a tag that will store the fault information Select the FaultRecord data type Publication 1756 PM001C EN P June 2001 18 2 Develop a Power Up Routine Action 1
18. 6 Go to step 11 7 Enter the following rung STOD String To DINT Source Dest 42810 8 Enter the EM bit of the ARD or ARL instruction that read the value 9 Enter the string tag that contains the value 10 Enter a tag name to store the value for use in your application Define the data type as DINT EXAMPLE When MV_read EM is on the STOD instruction converts the first set of numeric characters in MV_msg to an integer value The instruction skips the initial control character 06 and stops at the delimiter C MV read EM STOD String To DINT Source MV msg 06324 12 1 r Dest MV msg nmbr 324 42620 11 Does this string have another value that you want to use If Then yes Go to Decode an ASCII Message on page 13 8 no Stop You are done with this procedure Publication 1756 PM001C EN P June 2001 13 8 Process ASCII Characters Decode an ASCII Message Use the following steps to extract and convert a value from an ASCII message that contains multiple values For example a message may look like this first value second value third value Ctrl F message F key V F keyaction CR control character delimiter delimiter termination character 1 Determine where to start If the And Then string has more than one value This is the first value Go to Convert a Value on page 13 6 This is not the value Go to step 2 string has only
19. Cg User Defined E Rl c New String Type Gy Prede m Ly Mod Ween 1 0 Conf M ESS 42812 Print or You can create a new string data type to store the number of characters that you define IMPORTANT Use caution when you create a new string data type If you later decide to change the size of the string data type you may lose data in any tags that currently use that data type Then e The data is truncated e The LEN is unchanged If you make a string data type smaller make a string data type The data and LEN is reset to zero larger 1 Do you want to create a new string data type 3 If no HA String New String Then Go to Read Characters from the Device on page 12 9 yes Name Description Go to step 2 2 In the controller organizer right click Strings and choose New String Type Maximum Characters o 42233 Publication 1756 PM001C EN P June 2001 Type a name for the data type Type the maximum number characters that this string data type will store Choose OK Communicate with an ASCII Device 12 9 Read Characters from the As a general rule before you read the buffer use an ACB or ABL Device instruction to verify that the buffer contains the required characters An ARD or ARL instruction continues to read the buffer until the instruction reads the required characters e While an ARD or
20. Create a Project File c Satna bes dete D tine be 1 1 SAVE Your Chine s ats m ep han durs Pee t peus 1 2 Chapter 2 When to Use This Procedure same adc etd des 2 1 How to Use This Procedure ia esee ER 2 1 Identify the Available Programming Languages 2 1 Organize Your Logic 2 2 Verify the Controller nnana aaa 2 5 Chapter 3 Plan Your Tags nie ae nee d sente 3 1 Create a User Defined Data Type wise Eie etes 3 8 NOES er eed voe ep dy e ped vy rs Ep Arpa ated 5 9 CEA A TA oa d Rar ers ce deo UR Per E ed 3 10 Create Tags Using Microsoft Excel 3 11 Chapter 4 When to Use This Procedutes ovs x rep RE ERAS 4 1 How to Use This Procedure cu voe ass PR PS ER 4 1 Open the ROME cuv edere Tee ap Eur ob ete eles 4 1 Enter Ladder Instructions 4428 ru Y b ED CERIS 4 3 Enter Function Block Instructions 4 4 Assign Operands 59s ekRERE IV EE ESTAS Sm 4 7 Verify he Routine v4 eg sang ovt Lot x SOEUR ee et 4 10 Chapter 5 Monitor Status Flags T ecu LH MU eI UE ECHO AA E 5 1 Get and Set System DATA vuota a Eth T a arta 5 2 Chapter 6 Alias TAOS RP 6 1 Display Alias Information 45 va aes eA haa ea 6 2 AssiOi All AS c es Ixus ces Sek lent TAI TRA 6 3 Chapter 7 When to Assign an Indirect Address 7 1 EXDIeSSIONS xd tee kG a RAE DE AE 7 3 Chapter 8 When to Bater I Os ye PEERKE EOR a REEE ONS Ed 8 1 Bol fes Otesi ore pe t qo apk Dre E in WA t aR 8
21. Local Data Fill File Souce value 1 Dest timer 1 Length 1 FLL Fill File Source value 1 Dest dest 1 Length 1 AVE Average File Array array_dint 3 0 TIEN ManRoutine fite examples Publication 1756 PM001C EN P June 2001 Force Values 14 5 Enable Forces When forces are enabled the ladder editor a when BRT changes copy the timestamp to a buffer x Local4 Data 1 MOY MOV indicates which forces are on p gt JE Move M S SUATCSTTimestamelt 7 Source Loco ES TT mean value CST 0 Dest value CST 1 firs oel For a force s to take affect you enable forces You can only enable and disable forces at the controller level You cannot enable or disable forces for a specific module tag collection or tag element ATTENTION Enabling forces causes input output produced or consumed values to change Keep personnel away from the machine area Forcing can cause unexpected machine motion that could injure personnel You enable forces from the Online Bar c RSLogix 5000 quick start Forces Installed indicates that File Edit View Search Logic Communications Tools Ww force values have been entered Forces Disabled z NE al Select Enable all forces lotic RE t E Controller quick ste IMPORTANT If you download a project that has forces enabled the programming software prompts you t
22. Program Tags MainProgram Scope MainProgram Show Show Al Tag Name drill BaseTag Type DRILL STATION 4 This array contains drill D four elements of the EE DRILL STATION data rill O part advance BODL ne drill 0 hole sequence CONTROL dril type DINT ill hole position REAL dril D depth REAL drillD total depth REAL H drill 1 DRILL STATION drill 2 DRILL STATION drill 3 DRILL_STATION Monitor Tags Edit Tags 42583 Publication 1756 PM001C EN P June 2001 3 8 Organize Tags Create a User Defined Data 1o create a user defined data type Type zc Controller example Controller Tags Controller Fault Handler 2 Power Up Handler B E Tasks C3 JAg MainT ask MainProgram A Program Tags E MainRoutine Unscheduled Programs C Trends o J Data Types Lg User Defined lt Cf Predefined C8 Module Defined 3 1 0 Configuration 42195 1 Right click User Defined and select New Data Type Hi Data Type New UDT2 2 I Name l Size byte s 3 P Description Members A g Name Data Type Style ro otto 2 Type a name for the data type 3 Type a description optional 4 Type the name of the
23. You can use any type of input instruction The instruction must change from false to true each time the characters are to be sent Enter O Enter the tag name that stores the ASCII characters Define the data type as a string Enter a tag name for the AWA instruction and define the data type as SERIAL PORT CONTROL Enter the LEN member of the Source tag The tag from step 19 Enter the LEN member of the AWA instruction The tag from step 20 Publication 1756 PM001C EN P June 2001 12 18 Communicate with an ASCII Device a termination character Because the number of characters in alarm msg varies the rung first moves the length of alarm msg alarm_msg LEN to the length of the AWA instruction alarm write LEN In alarm msg the 14 counts as one character It is the hex code for the Ctrl T EXAMPLE When alarm is on the AWA instruction sends the characters in alarm_msg and appends character alarm MOV AWA Move ASCII Write Append Source alarm msg LEN Channel 0 5 Source alarm msg ND Dest alarm write LEN 1425 1 5 SerialPort Control alarm_write ERD String Length 5 Characters Sent 6 42229 23 Go to Enter ASCII Characters on page 12 21 Publication 1756 PM001C EN P June 2001 Communicate with an ASCII Device 12 19 24 Enter the following rung 25 25 26 27 28 29 30 2 26 MOV ASCII Wr
24. continuous task continuous task continuously execute your logic You can only have one periodic task e interrupt the continuous task e execute logic one time e return control to the continuous task You can have more than one periodic task The controller organizer shows the tasks of a controller Sel Controller example The Tasks folder contains the tasks for the controller i e your logic Controller Tags Controller Fault Handler I Power Up Handler Tasks MainTask is the default continuous task It runs all the B gt time and repeatedly executes MainProgram Whenever MainProgram executes any logic in MainRoutine will execute You can use MainRoutine to call other routines subroutines within MainProgram tal MainT ask S MainProgram 2 Program T ags MainRoutine I Unscheduled Programs Trends Data Types ET User Defined Lip Predefined a Module Defined 1 0 Configuration 42195 Organize Tasks 2 3 Select the task s for your logic If you execute Then Detailed steps a function at a constant rate 1 Create a periodic task for A In the controller organizer right click Tasks and select New e g execute a PID loop every the function Task 100 ms B Type a function very fast name or pas description optional C From the 7ype list select Periodic D Under Periodic Attributes type
25. octal immediate value An actual 32 bit signed real or integer value Not a tag that stores a value index A reference used to specify an element within an array instruction The controller evaluates ladder instructions based on the rung condition preceding the instruction rung condition in input instruction output instruction Ll rung condition in rung condition out Glossary 13 Only input instructions affect the rung condition in of subsequent instructions on the rung e If the rung condition in to an input instruction is true the controller evaluates the instruction and sets the rung condition out to match the results of the evaluation If the instruction evaluates to true the rung condition out is true If the instruction evaluates to false the rung condition out is false An output instruction does not change the rung condition out If the rung condition in to an output instruction is true the rung condition out is set to true If the rung condition in to an output instruction is false the rung condition out is set to false In Logix5000 controllers you can enter multiple output instructions per rung of logic You can enter the output instructions in sequence on the rung seriaD between input instructions as long as the last instruction on the rung is an output instruction The following example uses more than one output on a rung EXAMPLE Place
26. p e Controller example Controller Tags Controller Fault Handler I Power Up Handler E Tasks c5 MainT ask H E MainProgram 2j Program Tags E MainRoutine 42195 1 Glossary 25 The Power Up Handler executes as follows Did the controller power up No Controller stays in the in Run mode m W current mode Y Yes Does the Power Up Handler No Controller stays in Run contain a program mode and executes its logic Y Yes Major fault type 1 code 1 OCCUIS Power Up Handler program executes Is the major fault cleared Yes Controller stays in Run mode and executes its logic y v Controller enters the faulted mode produced tag A tag that a controller is making available for use by other controllers Produced tags are always at controller scope See consumed tag product defined structure A structure data type that is automatically defined by the software and controller By configuring an I O module you add the product defined structure for that module Publication 1756 PM001C EN P June 2001 Glossary 26 program A set of related routines and tags Each program contains program tags a main executable routine other routines and an optional fault routine To execute the routines in a program you assign schedule the program to a task When a task is t
27. power loss 1 0 task watchdog mode change motion axis Publication 1756 PM001C EN P June 2001 Create a program and main routine for the Controller Fault Handler A B za nmm UU co E LT AC IcGO In the controller organizer right click Controller Fault Handler and select New Program Type e name of program e description optional Click OK Click the sign next to Controller Fault Handler Right click name of program and select New Routine Type e name of routine e description optional From the Type drop down list select the programming language for the routine Click OK Right click name of program and select Properties Click the Configuration tab From the Main drop down list select name o routine Click OK Double click name o routine Develop a Fault Routine 15 3 4 Enter the following logic Gets fault information and stores it in the major_fault_record tag user define structure GSV Get system value CIP Object class PROGRAM CIP Object name THIS Attribute name MAJORFAULTRECORD Dest major_fault_record Time_Low 0 If fault_type fault_code occurs sets the fault type and code in the major_fault_record tag to zero EQU EQU Equal Equal Source A major fault record Type Source A major fault record Code 0 Source B fault type Source
28. window c Go to step 1 3 To close the Results window press the Alt 7 keys Publication 1756 PM001C EN P June 2001 2 6 Organize Tasks Notes Publication 1756 PM001C EN P June 2001 Plan Your Tags Organize Tags Chapter 3 Logix5000 controllers store data in tags in contrast to fixed data files that are numerically addressed With tags you can organize your data to mirror your machinery document through tag names your application as you develop it When you create a tag you assign the following properties Table 3 A Tag Properties Property Description scope defines which routines can access the data name identifies the data Tags with different scopes can have the same name data type defines the organization of the data such a bit integer or floating point number The following table outlines the most common data types and when to use each Table 3 B Data Types For Select analog device in floating point mode REAL analog device in integer mode for very fast sample rates INT ASCII characters string bit BOOL counter COUNTER digital 1 0 point BOOL floating point number REAL integer whole number DINT sequencer CONTROL timer TIMER Publication 1756 PM001C EN P June 2001 3 2 Organize Tags Use the following table to organize your data For a Use a Reference group of common attributes that user defined Refer to
29. 1 Publication 1756 PM001C EN P June 2001 Table of Contents ii Test a Project Communicate with Another Controller Produce a Large Array Communicate with an ASCII Device Publication 1756 PM001C EN P June 2001 Chapter 9 CSE AROS CP eru Me SN BUE ule d Re 9 1 Configure a Communication Driver usu rte 9 1 Download a Project to the Controller 4v see rase 9 2 Select a Mode for the Controller 422488 96 bh 9 3 Correct Major Faults naana esce f e SER e 9 4 Save Your Online Changes st tee tira Se be 9 4 Chapter 10 When to Use This PtOcedufes 2s wo cian eX oe En 10 1 How to Use This Procedure cessi siens 10 1 Produce and Consume a Tag 10 1 What You Need TODO suce ek CER ass 10 3 Organize Tags for Produced or Consumed Data 10 3 Produc A TAB uos eai En aie ATE e ee cet 10 4 Consume a Produced TASER Aa S 10 5 Produce Integers for a PLC 5C Controller 10 6 Produce REALs for a PLC 5C Controller 10 7 Consume Integers from a PLC 5C Controller 10 9 Adjust for Bandwidth Limitations 10 10 Send a Message dior icono Ghd NUS pb d Ree Pee GS 10 11 Chapter 11 When to Use this Procedures sv exu wo ade Rt ts 11 1 Produc ea Large Aa bou AC de veu xc C ep AC ted 11 2 Chapter 12 When to Use this Procedure amp oe sepe Pt 12 1 How to Use This Procedure ue Rens o SY HG PY Alege t we e os 12 1 Connect the ASCII Devite uu X owes d ares eae eee AN 12 2 Co
30. AB Allen Bradley Logix5000 Controllers Common Procedures 1756 Lx 1769 Lx 1789 Lx 1794 Lx Programming Manual E fl Tl I Li Li L T Automation E t Important User Information Because of the variety of uses for the products described in this publication those responsible for the application and use of this control equipment must satisfy themselves that all necessary steps have been taken to assure that each application and use meets all performance and safety requirements including any applicable laws regulations codes and standards The illustrations charts sample programs and layout examples shown in this guide are intended solely for purposes of example Since there are many variables and requirements associated with any particular installation Allen Bradley does not assume responsibility or liability to include intellectual property liability for actual use based upon the examples shown in this publication Allen Bradley publication SGI 1 1 Safety Guidelines for the Application Installation and Maintenance of Solid State Control available from your local Allen Bradley office describes some important differences between solid state equipment and electromechanical devices that should be taken into consideration when applying products such as those described in this publication Reproduction of the contents of this copyrighted publication in whole or part without written permission of Roc
31. ARL instruction is reading the buffer no other ASCII Serial Port instructions except the ACL can execute Verifying that the buffer contains the required characters prevents the ARD or ARL from holding up the execution of other ASCII Serial Port instructions while the input device sends its data For additional information on ASCII Serial Port instructions refer to Logix5000 Controllers General Instruction Set Reference Manual publication 1756 RMO003 IMPORTANT If you are not familiar with how to enter ladder logic in an RSLogix 5000 project first review Program Routines on page 4 1 1 Which type of device are you reading If the device is a Then bar code reader Go to step 2 weigh scale that send a fixed number of characters message or display terminal Go to step 14 weigh scale that send a varying number of characters 2 Enter the following rung ACB ASCII Chars in Buffer Channel SerialPort Control Character Count T 42235a 3 Enter O Enter a tag name for the ACB instruction and define the data type as SERIAL PORT CONTROL 5 Enter the EN bit of the ACB tag The tag from step 4 Publication 1756 PM001C EN P June 2001 12 10 Communicate with an ASCII Device Publication 1756 PM001C EN P June 2001 6 Enter the following rung EQ Grtr Than or Eql gt B Source ASCII Read Channel Destination
32. B fault code MOV MOV Move Move Source 0 Source 0 Dest major_fault_record Type Dest major_fault_record Code 0 0 When the MAJORFAULTRECORD is set to the new values that are contained in the major_fault_record tag the fault clears and the controller resumes execution SSV Set system value CIP Object class PROGRAM CIP Object name THIS Attribute name MAJORFAULTRECORD Source major fault record Time Low 0 42372 where is the major fault record tag from step 2 fault type value for the fault type that you want to clear fault code value for the fault code that you want to clear Publication 1756 PM001C EN P June 2001 15 4 Develop a Fault Routine Test a Fault Routine You can use a JSR instruction to test the fault routine of a program without creating an error i e simulate a fault 1 Create a BOOL tag that you will use to initiate the fault 2 In the main routine or a subroutine of the program enter the following rung JSR Jump to Subroutine Routine name aaa bbb where is the aaa tag that you will use to initiate the fault Step 1 bbb fault routine of the program 3 To simulate a fault set the input condition EXAMPLE Test a fault routine When test fault routine is on a major fault occurs and the controller executes Fault_Routine test_fault_routine JSR Jump to Subroutine Routine name Fault_Routine Publication 1756 PM001C EN P June 2001 When to Use this Proce
33. Create a User Defined are used by more than one data type Data Type on page 3 8 machine group of data with the same data array Refer to Create a Tag on type page 3 10 single value tag of a single 1 0 device element The following examples show the different levels at which you can organize your data Single element tags on page 3 3 Single dimension array on page 3 4 Two dimension array on page 3 5 User defined data type that stores a recipe on page 3 6 User defined data type that stores the data that is required to run a machine on page 3 7 Publication 1756 PM001C EN P June 2001 Organize Tags 3 3 EXAMPLE Single element tags Program Tags MainProgram Scope MainProgram Show Show All v Sort Tag Narr Tag Name 4 Alias For Base Tag Type north tank mix BOOL north_tank_pressure IREAL analog 1 0 device W north_tank_temp REAL Hl one shots DINT recipe TANK 3 integer value H recipe number IDINT storage bit e replace bit BOOL counter M 9 H running hours COUNTER timer 9 H running seconds TIMER start BOOL digital 1 0 device pe stop BOOL Monitor Tags Edit Tags IE 42364 Publication 1756 PM001C EN P June 2001 3 4 Organize Tags lo expand an array and Single dimension array In this example a single timer instruction
34. Enter the following rung MID Middle String Source Oty Start Dest 42808 2 Enter the EM bit of the ARD instruction that read the bar code 3 Enter the string tag that contains the bar code 4 Enter the number of characters in the part of the bar code that you want to check 5 Enter the position of the first character in the part of the bar code that you want to check 6 Enter a tag name to store the part of the bar code that you want to check Define the data type as a string Publication 1756 PM001C EN P June 2001 Process ASCII Characters 13 3 EXAMPLE In the baggage handling conveyor of an airport each bag gets a bar code Characters 10 18 of the bar code are the flight number and destination airport of the bag After the bar code is read bag_read EM is on the MID instruction copies the flight number and destination airport to the bag_ flt_and_dest tag bag read EM MID Middle String Source bag barcode NW HOP 5058 AMS 02 Qty 9 Start 10 Dest bag flt and dest 5058 AMS 42808 Publication 1756 PM001C EN P June 2001 13 4 Process ASCII Characters Check the Bar Code In this task you use a compare instruction EQU GEQ GRT LEQ Characters LES NEQ to check for specific characters The hexadecimal values of the characters determine if one string is less than or greater than another string e When the two strings are sorted as in a telephone directo
35. Expressions You can also use an expression to specify the subscript of an array An expression uses operators such as or to calculate a value The controller computes the result of the expression and uses it as the array subscript You can use these operators to specify the subscript of an array Operator Description Operator Description add MOD Modulo subtract negate NOT complement multiply OR OR i divide SOR square root ABS Absolute value TOD integer to BCD AND AND TRN Truncate FRD BCD to integer XOR exclusive OR Format your expressions as follows If the operator requires Use this format Examples one value tag or expression operator value ABS tag_a two values tags constants or value_a operator value_b e tag_b 5 expressions e tag_c AND tag_d e tag e 2 MOD tag_f tag_g Publication 1756 PM001C EN P June 2001 7 4 Assign an Indirect Address Notes Publication 1756 PM001C EN P June 2001 Chapter 8 Buffer 1 0 When to Buffer 1 0 To buffer I O is a technique in which logic does not directly reference or manipulate the tags of real I O devices Instead the logic uses a copy of the I O data Buffer I O in the following situations To prevent an input or output value from changing during the execution of a program I O updates asynchronous to the execution of logic To copy an input or output tag to a member of a structure or element of an
36. Select Disable all forces Disable All Forces 6 Controller quick sta CR Cantenliar Tana You can remove forces from individual values or from the entire controller You can remove individual forces from the data monitor Do this Right click on the value in the data monitor and select Remove Force bits within a value Expand the value and edit the Force Mask column Change the bit value to to indicate no force BOOL value Publication 1756 PM001C EN P June 2001 Type a space If the force is on a BOOL tag or bit value you can also remove forces from the ladder editor Right click on the value and select Remove Force If you remove each force individually forces can still be enabled ATTENTION If you have removed forces but forces are still enabled and you set a force value it takes affect immediately Keep personnel away from the machine area Forcing can cause unexpected machine motion that could injure personnel Removing a force on an alias tag also removes the force on the base tag Force Values 14 7 At the controller level you can remove all forces Removing all forces disables forces and clears all force mask values RSLogix 5000 examples File Edi View Search Logic Communications Tools Ww alsia e selel off Select Remove all forces ores wy Remove All Forces Monitor Forces You can monitor for
37. array Buffer 1 0 To buffer I O perform these actions 1 On the rung before the logic for the function s copy or move the data from the required input tags to their corresponding buffer tags 2 In the logic of the function s reference the buffer tags 3 On the rung after the function s copy the data from the buffer tags to the corresponding output tags Publication 1756 PM001C EN P June 2001 8 2 Buffer 1 0 The following example copies inputs and outputs to the tags of a structure for a drill machine ECS o The main routine of the program executes the following subroutines in this sequence JSR JSR JSR Jump to Subroutin Jump to Subroutin Jump to Subroutine Routine name map_inputs Routine name drill Routine name map_outputs The map_inputs routine copies the values of input devices to their corresponding tags that are used in the drill routine 1791 8AC I Data 0 0 drill 1 depth limit 1791 8AC I Data 0 4 drill 1 home limit LEN M d The drill routine executes the logic for the drill machine drill 1 part advance one shots 0 drill 1 depth limit drill 1 forward 3 E LONS 3 E C drill 1 forward dE drill 1 depth limit drill 1 home limit drill 1 retract age AVE 3 E drill 1 retract EE IE The map_outputs routine copies the values of output tags in the drill routine to their correspondi
38. as an operator terminal build a string for an ASCII triggered device using variables from your application How to Use this Procedure IMPORTANT If you are not familiar with how to enter ladder logic in an RSLogix 5000 project first review Program Routines on page 4 1 Depending on your application you may not need to do all the tasks in this procedure Use the following table to determine where to start If you want to Then go to On page initiate an action based on a bar code Extract a Part of a Bar Code 13 2 use a weight from a weigh scale Convert a Value 13 6 decode a message from an operator Decode an ASCII Message 13 8 terminal create a string to send to an operator Build a String 13 12 terminal For additional information on ASCII related instructions refer to Logix5000 Controllers General Instruction Set Reference Manual publication 1756 RMO003 Publication 1756 PM001C EN P June 2001 13 2 Process ASCII Characters Extract a Part of a Bar Code Use the following steps to extract a part of a bar code so you can take action based on its value For example a bar code may contain information about a bag on a conveyor at an airport To check the flight number and destination of the bag you extract characters 10 18 airline origin flight destination date bar code Ha E E ae character number 11 12 13 14 15 17 18 19 20 21 22 23 24 ERESERENIMESICTERINO 9 characters Steps 1
39. be extended to meet end user application needs The downside of this approach is that each programmable control system vendor may implement different components of the specification or provide different extensions The preemptive multitasking operating system OS of Logix5000 controllers complies with the IEC61131 3 definition In IEC61131 3 the programmable controllers OS can contain zero or more tasks that can execute one or more programs each containing one or more functions or routines According to IEC61131 3 the number of each of these components is implementation dependent Logix5000 controllers provide multiple tasks each containing multiple programs and an unlimited number of functions or routines IEC61131 3 provides an option for creating different task execution classifications Tasks may be configured as continuous periodic or event based A continuous task does not need to be scheduled in that it will utilize any left over processing time when other tasks are dormant Periodic tasks are scheduled to operate based on a reoccurring time period The IEC61131 3 specification does not specify a time base for periodic task configuration An IEC61131 3 event based task is triggered upon detection of the rising edge of a configured input Logix5000 controllers support both continuous and periodic tasks Additionally the period for a periodic task is configurable starting as low as 1 millisecond ms The IEC61131 3 specification pr
40. e rate e priority E Click OK 2 Create a program for the A Right click name_of_task and select New Program task B Type name of program e description optional C Click OK 3 Create and assign a A Click the sign that is next to name of task main routine the B Right click name o program and select New routine to execute first in Routine the program C Type name of main routine e description optional D From the Type drop down list select the programming language for the routine Click OK Right click name of program and select Properties Click the Configuration tab From the Main drop down list select name of main routine Click OK To add additional routines subroutines to the program repeat steps B to E T CO cn rm c 4 Place the remaining functions in MainTask MainProgram See below multiple functions and use logic 1 Create a routine A In the controller organizer right click MainProgram and to decide when each function subroutine for each select New Routine will execute function B Type the following properties for the routine function e name of routine description optional C From the Type drop down list select the programming language for the routine D Click OK 2 Use a JSR instruction to call each subroutine all functions all of the time 1 In MainRoutine enter your logic 2 Use rung comments to designate the different func
41. ea EA 15 1 Develop a Fault Routine eo V e CE ES OE d 15 1 Test a Fault ROU uL eara 8 ts Peta ew 9 5 OAT Bn 15 4 Chapter 16 When to Use this Procedure eo v5 he bath dick ds 16 1 Create a User Defined Major Fault 16 1 Chapter 17 When to Use This Procedure Lade eie ipee e Eran 17 1 Monitor Minor Faults ed ur oe ect et e e eet 17 1 Chapter 18 When to Use This Procedure uae qt e p a PROS 18 1 Develop a Power Up Routine yaa tay Rh eu Se ned 18 1 Chapter 19 When to Use This Procedure i ea vq once e e Ee Ce 19 1 How to Use This Procedure 19 2 Store a Projectos CX bes ES ey Ra Be er Le OK Eee 19 3 Load a Project ee aaa ee D X dett ed Oe eee ee 19 6 Check tora Lodd cou mine tp rion og Ye finies 19 9 Clear Nonvolatile M MOry sn sata aed Pa pale 19 10 Publication 1756 PM001C EN P June 2001 Table of Contents iv Fault Codes IEC61131 3 Compliance Glossary ASCII Character Codes Publication 1756 PM001C EN P June 2001 Appendix A When to Use This Appendix A 1 Malo Fault CodeS uq a sas s spo Qo OY sae Sheil pee nd A 1 Minor Fault Codes va ya MESA or o ord OER A 3 Appendix B Using This Appendix zai pomo pri ci nee e tt B 1 TAME OCMCHOM fo SE poem cde dr dos DU Te Rte B 1 Operating System s voces erbe de p PX B 2 Data Definitions v ecce Ww Bg poto Te ec pee B 2 Programming Languages B 3 Instruction Sete ii ca DA OO R
42. each packet contains the same number of elements the buffer prevents the controller from copying beyond the boundaries of the array e Without the buffer this would occur if the last packet contained fewer than 123 elements of actual data Produce a Large Array 1 Open the RSLogix 5000 project that will produce the array 2 In the Controller Tags folder create the following tags P Tag Name Type array ack DINT 2 4 array packet DINT 125 where array is the name for the data that you are sending 3 Convert array ack to a consumed tag For Specify Controller name of the controller that is receiving the packet Remote Tag Name array ack Both controllers use the same name for this shared data Refer to Consume a Produced Tag on page 10 5 Publication 1756 PM001C EN P June 2001 Produce a Large Array 11 3 4 In either the Controller Tags folder or the tags folder of the program that will contain the logic for the transfer create the following tags Tag Name Type array DINT x where x equals the number of elements to transfer plus 122 elements array offset DINT array Size DINT array transfer time DINT array transfer time max DINT array transfer timer TIMER where array is the name for the data that you are sending 5 In the array size tag enter the number of elements of real data The value of x from step 4 minus the 122 elements of buffer 6 Create or op
43. fault that was not cleared and up to two additional faults that have not been cleared are logged in the controller fault log Publication 1756 PM001C EN P June 2001 Glossary 16 major fault occurs instruction fault no yes controller logs major fault to current PROGRAM MajorFaultRecord program fault routine exists yes execute current program s fault routine fault cleared Publication 1756 PM001C EN P June 2001 no p Y controller logs major fault to controller fault handler PROGRAM MajorFaultRecord Y controller fault handler exists execute controller fault handler MEM fault cleared p enter faulted mode record FAULTLOG shut down yes continue logic execution yes continue logic execution Glossary 17 See faulted state minor fault major revision The 1756 line of modules have major and minor revision indicators The major revision is updated any time there is a functional change to the module See electronic keying minor revision master CST Within a single chassis one and only one controller must be designated as the Coordinated System Time CST master All other modules in the chassis synchronize their CST values to the CST master member An element of a structure that has its own data type and name
44. for half duplex transmission select the Echo Mode check box Publication 1756 PM001C EN P June 2001 If the ASCII device is CRT Communicate with an ASCII Device 12 7 7 Select the Delete Mode Select Notes CRT e The DEL character 7F and the character that precedes the DEL character are not sent to the destination e f echo mode is selected and an ASCII instruction reads the DEL character the echo returns three characters BACKSPACE SPACE BACKSPACE 08 20 08 printer Printer e The DEL character 7F and the character that precedes the DEL character are not sent to the destination e f echo mode is selected and an ASCII instruction reads the DEL character the echo returns two characters 2F followed by the character that was deleted None of the above Ignore The DEL character 7F is treated as any other character 8 Click OK Publication 1756 PM001C EN P June 2001 12 8 Communicate with an ASCII Device Create String Data Types Controller name of controller Tasks 2 Trends Data Types Ca User Defined B E Strings Ei STRING Cp Predefined Ca Module Defined 3 1 0 Configuration E 1 T 42811 You can use the default STRING data type It stores up to 82 characters You store ASCII characters in tags that use a string data type H Controller name of controller H Tasks 2 Trends A Data Types
45. if you repeatedly execute the MSG instruction because initiating the connection each time increases scan time See connection uncached connection change of state COS Any change in the status of a point or group of points on an I O module CIP See Control and Information Protocol communication format Defines how an I O module communicates with the controller Choosing a communication format defines what configuration tabs are available through the programming software the tag structure and configuration method Glossary 7 compatible module An electronic keying protection mode that requires that the vendor catalog number and major revision attributes of the physical module and the module configured in the software match in order to establish a connection to the module See disable keying exact match connection The communication mechanism from the controller to another module in the control system The number of connections that a single controller can have is limited Communications with I O modules consumed tags produced tags and MSG instructions use connections to transfer data consumed tag A tag that receives the data that is broadcast by a produced tag over a ControlNet network or ControlLogix backplane A consumed tag must be controller scope same data type including any array dimensions as the remote tag produced tag See produced tag continuous task The task that runs contin
46. multiple controllers receiving input data from the same I O module at the same time multiple owners A configuration setup where more than one controller has exactly the same configuration information to simultaneously own the same input module Publication 1756 PM001C EN P June 2001 Glossary 20 Publication 1756 PM001C EN P June 2001 name Names identify controllers tasks programs tags modules etc Names follow IEC 1131 3 identifier rules and must begin with an alphabetic character A Z or a z or an underscore can contain only alphabetic characters numeric characters and underscores can have as many as 40 characters must not have consecutive or trailing underscore characters are not case sensitive download to the controller network update time NUT The repetitive time interval in which data can be sent on a ControlNet network The network update time ranges from 2ms 100ms nonvolatile memory Memory of the controller that retains its contents while the controller is without power or a battery See load store object A structure of data that stores status information When you enter a GSV SSV instruction you specify the object and its attribute that you want to access In some cases there are more than one instance of the same type of object so you might also have to specify the object name For example there can be several tasks in your application Each task has its own T
47. name of the tag label or similar item e type the name of a C Press the Enter key tag wire connector label or similar item function block instruction A Click the symbol B Click the symbol again C Type the value or type the name of the tag or connector D Press the Enter key select a tag wire connector A Open the text entry box label or similar item from a list In a Do this ladder instruction Double click the symbol function block A Click the symbol instruction B Click the symbol again C Click the W D Select a name To select a Do this wire connector label Select the name or similar type of name tag Double click the tag name bit number A Click the tag name B To the right of the tag name click Kg C Click the required bit D Press the Enter key or click a different spot on the diagram drag a tag from the Tags ladder instruction A Locate the tag in the Tags window window B Click the tag two or three times until it highlights C Drag the tag to its location on the instruction function block instruction not available Publication 1756 PM001C EN P June 2001 4 10 Program Routines 2 Have you previously defined created this tag If Then Yes Go to the next operand No Create the tag A Right click the tag and select New tag_name In older revisions of the software the menu option is Create t ag_name B In the Description box type a description f
48. name_of_controller folder and select Properties b Change the required information c Click OK Publication 1756 PM001C EN P June 2001 1 4 Manage Project Files Notes Publication 1756 PM001C EN P June 2001 When to Use This Procedure How to Use This Procedure Identify the Available Programming Languages Organize Tasks Chapter 2 After you create a project file organize your project into tasks To organize your project into tasks do the following steps Identify the Available Programming Languages Organize Your Logic Verify the Controller Use the following table to identify which programming language you can use for your controller For this platform of controllers You can use this language ladder function block CompactLogix v v ControlLogix v v FlexLogix v v SoftLogix v Notes For controllers with multiple languages you can mix languages in a project To use function blocks you must have the following catalog number of RSLogix 5000 software 9324 RLD700 To see which components are installed with RSLogix 5000 software 1 Open RSLogix 5000 software 2 From the Help menu choose About RSLogix 5000 Publication 1756 PM001C EN P June 2001 2 2 Organize Tasks Organize Your Logic Publication 1756 PM001C EN P June 2001 To execute your logic you use a task s There are two types of tasks This type of task Will
49. one value p gt Goto Convert a Value on page 13 6 2 Which type of number is the value If Then floating point Enter Rung A Find and Convert a Floating Point Value integer Enter Rung B Find and Convert an Integer Value IND MID STOR Rung A Find and Find String Middle String String to Real Convert a Source Source Source Floating Point Value Search Oty Start Result 42810 IND MID STOD Rung B Find and Find String Middle String String To DINT Convert an Integer Source Source Source Dest Value Search Qty Start Result 42810 Publication 1756 PM001C EN P June 2001 Process ASCII Characters 13 9 IND Find String Source MID Middle String Source Oty Start Search Start Result Dest 42810 3 Enter the EM bit of the ARL instruction that read the value 4 Enter the string tag that contains the value 5 Enter a tag name to store the delimiter that marks the beginning of the value Define the data type as a string 6 Double click the value area of Search Ex String Browser MV_msg aa Position 0 Count 0 of 82 Gl Eras B 42615 7 Type the delimiter and choose OK 8 Enter the position in the string to start the search Initially you can use 0 to find the first delimiter To decode additional data increase this value to search for the next delimiter
50. select Go To Faults 2 Use the information in the Recent faults list to correct the cause of the fault Refer to Major Fault Codes on page A 1 3 Click the Clear Majors button You can also clear a major fault by using the keyswitch on the controller Turn the keyswitch to be Prog then to Run and then back to Prog If you make changes to the project while online save the project so that the offline project file matches the online project file If you want to Do this save online changes and data values From the File menu select Save save online changes but not online data A From the Communications menu values select Go Offline B From the File menu select Save When to Use This Procedure How to Use This Procedure Produce and Consume a Tag Chapter 10 Communicate with Another Controller Use this procedure to transfer data between controllers send or receive data You can transfer data using either of these methods Produce and Consume a Tag Send a Message Select a method for transferring data between controllers If the data Then See page needs regular delivery at a rate that you Produce and Consume a Tag 10 1 specify i e deterministic is sent when a specific condition occurs in Send a Message 10 11 your application A produced tag sends its data to one or more consumed tags consumers without using ladder logic controller 1 controller 2 produce
51. string tag member of the string tag 2 In the LEN value enter the number of characters that the string contains 4 52 The output string is larger than the destination Create a new string data type that is large enough for the output string Use the new string data type as the data type for the destination 4 53 The output number is beyond the limits of the Either destination data type e Reduce the size of the ASCII value Use a larger data type for the destination 4 56 The Start or Quantity value is invalid 1 Check that the Start value is between 1 and the DATA size of the Source 2 Check that the Start value plus the Quantity value is less than or equal to the DATA size of the Source 4 57 The AHL instruction failed to execute because the serial Either port is set to no handshaking e Change the Control Line setting of the serial port e Delete the AHL instruction 6 2 Periodic task overlap Simplify program s or lengthen period or raise relative Periodic task has not completed before it is time to priority etc execute again 7 49 Project loaded from nonvolatile memory 9 0 Unknown error while servicing the serial port Contact GTS personnel 9 1 The CTS line is not correct for the current configuration Disconnect and reconnect the serial port cable to the controller Make sure the cable is wired correctly Publication 1756 PM001C EN P June 2001 A 4 Fault Codes Table A 2 Minor Fault Type
52. tag that the alias will represent To Do this select a tag Double click the tag name A Click the tag name B To the right of the tag name click M C Click the required bit select a bit number 6 Press the Enter key or click another cell Publication 1756 PM001C EN P June 2001 6 4 Assign Aliases Notes Publication 1756 PM001C EN P June 2001 When to Assign an Indirect Address Chapter Assign an Indirect Address If you want an instruction to access different elements in an array use a tag in the subscript of the array an indirect address By changing the value of the tag you change the element of the array that your logic references When index equals 1 array index points here array 0 4500 array 1 6000 array 2 3000 array 3 2500 When index equals 2 arraylindex points here The following table outlines some common uses for an indirect address To Use a tag in the subscript and select a recipe from an array of recipes Enter the number of the recipe in the tag load a specific machine setup from an array Enter the desired setup in the tag of possible setups load parameters or states from an array A Perform the required action on the one element at a time first element B Use an ADD instruction to increment the tag value and point to the next perform several actions on an array element element in the array a
53. the nonvolatile memory choose Yes Publication 1756 PM001C EN P June 2001 19 8 Store and Load a Project Using Nonvolatile Memory During the load the following events occur On the front of the controller the OK LED displays the following sequence red green RSLogix 5000 software goes offline When the load is finished you remain offline If you want to be online you must manually go online Publication 1756 PM001C EN P June 2001 Store and Load a Project Using Nonvolatile Memory 19 9 Check for a Load When the controller loads a project from nonvolatile memory it provides the following information logs a minor fault type 7 code 49 sets the FAULTLOG object MinorFaultBits attribute bit 7 If you want your project to flag that it loaded from nonvolatile memory use the following ladder logic On the first scan of the project S FS is on the GSV instruction gets the FAULTLOG object MinorFaultBits attribute and stores the value in minor_fault_bits If bit 7 is on the controller loaded the project from its nonvolatile memory S FS 0 Get System Value Class name FAULTLOG Instance name Attribute Name MinorF aultBits est minor fault bits 2 0000_0000_0000_0000_0000_0000_0000_0000 minor_fault_bits 7 NVM load 1 MM 42867 Where Is minor fault bits Tag that stores the FAULTLOG object MinorFaultBits attribute Data type is DINT NVM load Tag that indicates that the c
54. use of the BOOL 1 bit SINT 8 bit integer INT 16 bit integer DINT 32 bit integer and REAL IEEE floating point number elementary data types Additionally the optional derived data types are supported through the creation of user defined structures and arrays The IEC61131 3 specification defines five 5 different programming languages and a set of common elements All languages are defined as optional but at least one must be supported in order to claim compliance with the specification The IEC61131 3 programming language components are defined as follows Common Language Elements Common Graphical Elements Instruction List IL Language Elements Structured Text Language ST Elements Ladder Diagram LD Language Elements Sequential Function Chart SFC Language Elements Function Block Diagram FBD Language Elements Logix5000 controllers and RSLogix5000 provide support for the common language elements and the Ladder Diagram and Function Block Diagram language options Additionally the environment utilizes an ASCII import export format based on the Structured Text language The instruction set and program file exchange features are discussed in detail in the sections that follow Publication 1756 PM001C EN P June 2001 B 4 1EC61131 3 Compliance I Instruction Set IEC61131 3 Program Portability Publication 1756 PM001C EN P June 2001 The instruction set specified by IEC61131 3 is entirely
55. when all the programs within the task have executed If the task takes longer than the watchdog time a major fault occurs The time includes interruptions by other tasks A watchdog time out fault major fault also occurs if a task triggered again while it is executing periodic task overlap This can happen if a lower priority task is interrupted by a higher priority task delaying completion of the lower priority task You can use the controller fault handler to clear a watchdog fault If the same watchdog fault occurs a second time during the same logic scan the controller enters faulted mode regardless of whether the controller fault handler clears the watchdog fault ATTENTION If the watchdog timer reaches a configurable preset a major fault occurs Depending on the controller fault handler the controller might shut down To change the watchdog time of a task 1 2 Open the RSLogix 5000 project In the controller organizer right click name_of_task and select Properties Click the Configuration tab In the Watchdog text box type a watchdog time Click OK A address assign indirect 7 1 enter 4 7 alias create 6 3 use 6 1 array create 3 10 index through 7 1 organize 3 1 produce large array 11 1 ASCII build string 13 12 compare characters 13 4 configure serial port 12 3 configure user protocol 12 5 connect device 12 2 convert characters 13 6 decode message 13 8 enter character
56. 001C EN P June 2001 Glossary 27 rack optimized An I O connection where the 1756 CNB module collects digital I O words into a rack image similar to 1771 ASB A rack optimized connection conserves ControlNet connections and bandwidth however limited status and diagnostic information is available when using this connection type See direct rate For a periodic task the rate at which the controller executes the task from 1 ms to 2 000 000 ms 2000 seconds The default is 10 ms REAL A data type that stores a 32 bit 4 byte IEEE floating point value with the following range 3 402823E to 1 1754944E negative values 0 1 1754944E to 3 402823E positive values The REAL data type also stores infinity and NAN but the software display differs based on the display format Display Format Equivalent Real infinite 1 infinite 1 NAN 1 ONAN NAN 1 40NAN Exponential infinite 1 INF000e 000 infinite 1 INF000e 000 NAN 1 ONANO0e 000 NAN 1 FONANO0e 000 removal and insertion under power RIUP A ControlLogix feature that allows a user to install or remove a module while chassis power is applied Publication 1756 PM001C EN P June 2001 Glossary 28 requested packet interval RPI When communicating over a the network this is the maximum amount of time between subsequent production of input data Typically this interval is configured in microseconds
57. 2361 4 Note the name of the export file project name Tags 5 Select the scope of tags to export If you select Program Tags select the program tags to export 6 Click Export Publication 1756 PM001C EN P June 2001 3 12 Organize Tags 7 In Microsoft Excel software open the export file TYPE SCOPE NAME DESCRIPTION DATATYPE TAG in_cycle DINT TYPE SCOPE NAME DESCRIPTION DATATYPE TAG MainProgram conveyor_alarm BOOL TAG MainProgram conveyor_on BOOL TAG MainProgram drill_1 DRILL_ STATION TAG MainProgram hole_position REAL 6 6 TAG MainProgram machine_on BOOL 8 9 10 11 8 Enter TAG 9 Identify the scope of the tag 10 11 12 13 14 15 Publication 1756 PM001C EN P June 2001 If the scope is Then controller Leave this cell empty program Enter the name of the program Enter the name of the tag Enter the data type of the tag Repeat steps 8 to 11 for each additional tag Save and close the file Keep it as a CSV format In the RSLogix 5000 software from the Too s menu select Import Tags Select the file that contains the tags and click Import The tags import into the project The lower section of the RSLogix 5000 window displays the results Organize Tags 3 13 Notes You can configure tags to communicate directly with other controllers To Use a send data over the backplane and ControlNet network at produ
58. 4 31 The parameters of the JSR instruction do not Pass the appropriate number of parameters If too many match those of the associated SBR or RET parameters are passed the extra ones are ignored without any instruction error 4 34 A timer instruction has a negative preset or Fix the program to not load a negative value into timer preset or accumulated value accumulated value 4 42 JMP to a label that did not exist or was Correct the JMP target or add the missing label deleted 4 83 The data tested was not inside the Modify value to be within limits required limits 4 84 Stack overflow Reduce the subroutine nesting levels or the number of parameters passed Publication 1756 PM001C EN P June 2001 A 2 Fault Codes Table A 1 Major Fault Types and Codes Continued Type Code Cause Recovery Method 6 1 Task watchdog expired Increase the task watchdog shorten the execution time make the User task has not completed in specified period priority of this task higher simplify higher priority tasks or move of time A program error caused an infinite loop some code to another controller or the program is too complex to execute as quickly as specified or a higher priority task is keeping this task from finishing 7 40 Store to nonvolatile memory failed 1 Try again to store the project to nonvolatile memory 2 If the project fails to store to nonvolatile mem
59. 9 4 15 1 create user defined 16 1 develop routine to clear fault 15 1 18 1 major fault codes A 1 minor fault codes A 3 monitor minor 17 1 test a fault routine 15 4 force disable 14 6 enable 14 5 enter 14 2 LED 14 7 monitor 14 7 remove 14 6 tag 14 1 function block controllers that support function blocks 2 1 enter 4 4 1 0 buffer 8 1 synchronize with logic 8 1 ICON 4 4 IEC 1131 3 compliance data definitions B 2 instruction set B 4 introduction B 1 operating system B 2 program portability B 4 programming language B 3 tables B 5 indirect address 7 1 Publication 1756 PM001C EN P June 2001 instruction enter function block 4 4 enter ladder 4 3 instruction set B IREF 4 4 L LED force 14 7 load a project 19 1 logic enter function block instruction 4 4 enter ladder instruction 4 3 M major fault codes A 1 create user defined 16 1 develop fault routine 15 1 18 1 manipulate string 13 1 message decode string 13 8 organize tags 10 11 minor fault clear 17 1 codes A 3 logic 17 1 mode controller 9 3 monitor forces 14 7 nonvolatile memory 19 1 0 OCON 4 4 open routine 4 1 operating system B 2 OREF 4 4 organize array 3 1 strings 12 8 structure 3 1 tag 3 1 tasks 2 2 P PLC 5C share data 10 6 10 7 10 9 produce large array 11 1 tag 10 1 tags for PLC 5C 10 6 10 7 program portability B 4 program mode 9 3 programming language B 3 project download 9 2 load from nonvolatile memo
60. ASK object that you access by the task name octal Integer values displayed and entered in base 8 each digit represents three bits Prefixed with 8 Padded out to the length of the boolean or integer 1 8 16 or 32 bits When displayed every group of three digits is separated by an underscore for legibility See binary decimal bexadecimal offline Viewing and editing a project that is on the hard disk of a workstation See online Glossary 21 online Viewing and editing the project in a controller See offline optimal data type A data type that a Logix5000 instruction actually uses typically the DINT and REAL data types In the instruction set reference manuals a bold data type indicates an optimal data type Instructions execute faster and require less memory if all the operands of the instruction use the same data type an optimal data type If you mix data types and use tags that are not the optimal data type the controller converts the data according to these rules Are any of the operands a REAL value If Then input operands e g source tag in an expression limit convert to Yes REALs No DINTs After instruction execution the result a DINT or REAL value converts to the destination data type if necessary Because the conversion of data takes additional time and memory you can increase the efficiency of your programs by using the same data type through
61. Create a program 3 Create a program for the Power Up Handler Detailed steps A B In the controller organizer right click Power Up Handler and select New Program Type e name of program e description optional C Click OK 2 Create and assign a main routine A Click the sign that is next to Power Up Handler the routine to execute first in the B Right click name of program and select New Routine program C Type name of main routine e description optional D From the Type drop down list select the programming language for the routine E Click OK F Right click name of program and select Properties G Click the Configuration tab H From the Main drop down list select name o main routine Click OK J To add additional routines subroutines to the program repeat steps B to E Publication 1756 PM001C EN P June 2001 3 How do you want to handle a power loss To Do this Prevent the controller from returning to You are done When power is restored Run mode a major fault type 1 code 1 will occur and the controller will enter the Faulted mode When power is restored take specific A Open double click actions and then resume normal name of routine operation B Enter the logic for the actions Develop a Power Up Routine 18 3 4 Enter the following logic to clear the fault Gets fault information and stores it in the major fault tag user define structure GSV Ge
62. F BAT NoEdts m 1 0 i Redundancy W9 42627 3 On the Online toolbar click the controller button 4 Click the Serial Port tab Controller Properties Ascii examples OI x Major Faults Minor Faults Date Time Advanced File General Serial Port System Protocol User Protocol 5 Mode User Baud Rate i200 x 6 Data Bits rz Parity None Stop Bits 1 hd Control Line No Handshake he Continuous Carrier ATS Send Delay o x20 ms RTS Off Delay o 20 ms 42251 5 Select User 6 Select the settings for the ASCII device from step 1 Publication 1756 PM001C EN P June 2001 12 4 Communicate with an ASCII Device c Controller Properties Ascii_examples OI x Major Faults Minor Faults Date Time Advanced File General Serial Port System Protocol User Protocol Mode se Baud Rate 13200 Data Bits e Parity None Stop Bits E 7 4 Control Line No Handshake Li GT TM GU ST SITIET 8 RTS Send Delay o x20 ms 3 RTS Off Delay 0 x20 ms 42251 7 Select the Control Line option If And And this is the Select Then you are not using a gt No Handshaking Go to step 10 modem you are using a both modems ina pe Full Duplex modem point to point link are full duplex master modem is master controller Full Duplex full duplex while slave a E is half duplex slave controller Ha
63. INT 4 Memory Bits allocation 31 16 0 allocation 1 temp buffen temp_bufjen0 allocation 2 temp_buffen3 temp_bufjen2 See alias tag base tag consumed tag task A scheduling mechanism for executing a program By default each new project file contains a pre configured continuous task You configure additional periodic tasks as needed e A task provides scheduling and priority information for a set of one or more programs that execute based on specific criteria Once a task is triggered activated all the programs assigned scheduled to the task execute in the order in which they are displayed in the controller organizer You can only assign a program to one task at a time See continuous task periodic task timestamp A ControlLogix process that records a change in input data with a relative time reference of when that change occurred uncached connection With the MSG instruction an uncached connection instructs the controller to close the connection upon completion of the mSG instruction Clearing the connection leaves it available for other controller uses See connection cached connection unidirectional connection A connection in which data flows in only one direction from the originator to the receiver See connection bidirectional connection Publication 1756 PM001C EN P June 2001 Glossary 38 Publication 1756 PM001C EN P June 2001 upload The process of transfer
64. Ladder editor 61 1 2 Normally open contact XIC instruction in ladder 61 3 4 Normally close contact XIO instruction in ladder 61 5 6 Positive transition sensing contact P ONS instruction in ladder Publication 1756 PM001C EN P June 2001 IEC61131 3 Compliance B 9 Table Feature Feature Description Extensions and Implementation Notes Number Number 62 1 Coil OTE instruction in ladder 62 3 Set latch coil Functionality contained in OTL instruction in ladder 62 4 Reset unlatch coil Functionality contained in OTU instruction in ladder 62 8 Positive transition sensing coil OSR instruction in ladder 62 9 Negative transition sensing coil OSF instruction in ladder Table associated with languages other than ladder diagram and function block diagram have been skipped Publication 1756 PM001C EN P June 2001 B 10 1EC61131 3 Compliance g Notes Publication 1756 PM001C EN P June 2001 Glossary alias tag A tag that references another tag An alias tag can refer to another alias tag or a base tag An alias tag can also refer to a component of another tag by referencing a member of a structure an array element or a bit within a tag or member See base tag ASCII A 7 bit code with an optional parity bit that is used to represent alphanumerical characters punctuation marks and control code characters For a list of ASCII codes see the back cover of this manual as
65. Open the RSLogix 5000 project that will consume the produced tag 2 In the controller organizer O Configuration add the controller that contains the produced tag 3 From the Logic menu select Edit Tags 4 From Scope select name_of_controller controller Only tags that are controller scope can consume other tags 5 Select the tag in this controller that will consume the produced tag and press the ALT Enter keys Description a Cancel g Help Tag Type C Base C Alias C Produced m Consumers Lesstetessssessessenssnees Controller RPI ms p Remote 2 0 Tag Name gt Data Type Tl santiqure 6 Select the Consumed option button Publication 1756 PM001C EN P June 2001 10 6 Communicate with Another Controller Publication 1756 PM001C EN P June 2001 7 Select the controller that contains the produced tag 8 Type the name of the produced tag 9 Select the same data type as the produced tag 10 Type or select the time between updates of the tag Use the highest value permissible for your application If the controller consumes the tag over a ControlNet network use a power of two times the ControlNet network update time NUT For example if the NUT is 5 ms type a rate of 5 10 20 40 ms etc 11 Click OK 12 If you share the tag over a ControlNet network use RSNetWorx for ControlNet software to schedule the network IMPORTANT If a con
66. PM001C EN P June 2001 B 6 1EC61131 3 Compliance Table Feature Feature Description Extensions and Implementation Notes Number Number 10 16 STRING data type none 11 1 Data type Hierarchy none 12 1 Direct Derivation from elementary types User Defined data type structures 12 4 Array data types Tag variable definition 12 5 Structured Data types User defined data type structures 13 1 BOOL SINT INT DINT initial value of 0 Tag variable definition 13 4 REAL LREAL initial value of 0 0 Tag variable definition 13 5 Time initial value of T 0s Tag variable definition reset RES instruction 13 9 Empty String Descriptions 14 1 Initialization of directly derived types Import export 14 4 Initialization of array data types Import export 14 5 Initialization of structured type elements Import export 14 6 Initialization of derived structured data types Import export 20 1 Use of EN and ENO Function present in ladder but not labeled Available in FBD 20 2 Usage without EN and ENO Available in FBD 20 3 Usage with EN and without ENO Available in FBD 20 4 Usage without EN and with ENO Available in FBD 21 1 Overloaded functions ADD INT DINT or All overloaded types that are supported are ADD DINT REAL documented with each instruction 22 1 _TO_ conversion function RAD DEG instructions Radians to from Decimal Others not needed beca
67. PM001C EN P June 2001 Glossary 33 system overhead time slice Specifies the percentage of controller time excluding the time for periodic tasks that is devoted to communication and background functions system overhead The controller performs system overhead functions for up to 1 ms at a time If the controller completes the overhead functions in less than 1 ms it resumes the continuous task Communication and background functions include the following communicate with programming and HMI devices such as RSLogix 5000 software respond to messages send messages including block transfers re establish and monitor I O connections such as RIUP conditions this does not include normal I O communications that occur during program execution bridge communications from the serial port of the controller to other ControlLogix devices via the ControlLogix backplane If communications are not completing fast enough increase the system overhead timeslice The following table shows the ratio between the continuos task and the system overhead functions At this time slice The continuous tasks runs for And then overhead occurs for up to 10 9 ms ms 2096 4 ms ms 33 2ms ms 50 1 ms ms Publication 1756 PM001C EN P June 2001 Glossary 34 At the default time slice of 10 system overhead interrupts the continuous task every 9 ms of continuous task time Lege
68. S EA T OL EE Es B 4 IEC61131 3 Program Portability 4 vea dns sou TREE Va B 4 IEC Compliance Tables igs go ORS Feet o ee B 5 Create a Project File Chapter 1 Manage Project Files Before you program a Logix5000 controller you must create a project file 1 Start the RSLogix 5000 software 2 From the File menu select New New Controller Ea Vendor Allen Bradley Type 175611 ControlLogix 5550 Controller Name Cancel Description on Help Chassis Type 175641 D 10 Slot ControlLogix Chassis Slot 0 Revision Create In C RSLogi 5000 Projects Browse 42194 3 Select the type of controller 4 Type a name for the controller 5 Type a description of the operations that the controller performs optional 6 Select the type of chassis number of slots that contains the controller not applicable to some controllers 7 Select or type the slot number where the controller is installed not applicable to some controllers 8 To store the file in a different folder Cother than the default Create In path click Browse and select a folder Publication 1756 PM001C EN P June 2001 1 2 Manage Project Files 9 Click OK When you create a project the name of the project file is the same as the name of the controller RSLogix 5000 name of controller 1756 L1 File Edit View Search Logic Communications Tools Window Help IFTE WERE LN Etine ve Forces
69. Store Publication 1756 PM001C EN P June 2001 19 4 Store and Load a Project Using Nonvolatile Memory Project that is currently in the nonvolatile memory of the controller if any project is there Project that is currently in the user memory RAM of the controller m Image in Nonvolatile Memory Load Image User Initiated Load Mode Remote Program Image Note Stored 5 7 01 1 32 21 PM Name name of controller Type 17585 L55 ControlLogix 5555 Controller Revision 8 16 Load gt r Controller Name Type Revision Load Mode Load Image Image Note name_of_controller 1756 L55 4 ControlLogix 5555 Controller 8 16 On Power Up ee 6 Remote Run ee 1 a i lt Store 42866 6 When under what conditions do you want to load the project back into the user memory RAM of the controller If you want to load it Then select Notes e During a power cycle you will lose any online changes tag values and network schedule that you have not stored in the nonvolatile memory e With this option the project also loads when you update the firmware of the controller After the load the controller automatically goes to the mode that you select from the Load Mode drop down list step 7 e You can always use RSLogix 5000 software to load the project e With this option the project also loads when you update the firmware of the controller After t
70. Supersedes Publication 1756 PM001B EN P November 2000 2001 Rockwell International Corporation Printed in the U S A
71. WALLCLOCKTIME object and stores it in the wall_clock tag which is based on a user defined data type S FS Publication 1756 PM001C EN P June 2001 GS Get System Value Class name WALLCLOCKTIME Instance name Attribute Name DateTime Dest wall clock year 2001 42370 For more information see the Logix5000 Controllers General Instruction Set Reference Manual publication 1756 RM003 Alias Tags drill 1 depth limitis an alias tor Local 2 1 Data 3 a digital input point When the input turns on the alias tag also turns on drill 1 onisan alias for Local 0 0 Data 2 a digital output point When the alias tag turns on the output tag also turns on north tank is an alias for tanks 0 1 j Chapter 6 Assign Aliases An alias tag lets you create one tag that represents another tag Both tags share the same value s When the value s of one of the tags changes the other tag reflects the change as well Use aliases in the following situations program logic in advance of wiring diagrams assign a descriptive name to an I O device provide a more simple name for a complex tag use a descriptive name for an element of an array The tags window displays alias information Program Tags MainProgram Scope MainProgram Show Show All 7 Sat Tag Name F Tag Name 3 Alias For Base Ta
72. a different data type e Within a structure each individual data type is called a member Like tags members have a name and data type You create your own structures called a user defined data type using any combination of individual tags and most other structures To copy data to a structure use the COP instruction See the Logix5000 Controllers General Instruction Set Reference Manual publication 1756 RMO003 The COUNTER and TIMER data types are examples of commonly used structures lo expand a structure and display its members click the sign Program Tags MainProgram m Scope MainProgram Show Show All 7 Alias For Base Tag Tag Name Dm ununning hours COUNTER COUNTER structure To collapse a structure e running_seconds TIMER TIMER structure and hide its members running_seconds PRE DINT click the sign RS DEI com HEHrunning seconds ACC unning seconds EN unning seconds TT members of data types of the running_seconds members unning seconds LS unning seconds O V unning seconds ER Monitor Tags Edit Tags IE unning seconds DN unning seconds FS 42365 See member user defined data type style The format that numeric values are displayed in See ASCII binary decimal exponential float hexadecimal octal Publication 1756
73. acter 1 6a Subscript delimiters Array subscripts 2 1 Identifiers using upper case and numbers Task program routine structure and tag names 2 2 Identifiers using upper case numbers and Task program routine structure and tag names embedded underlines 2 3 Identifiers using upper and lower case Task program routine structure and tag names numbers and embedded underlines 4 1 Integer literal 12 0 12 4 Real literal 12 5 12 5 4 3 Real literal with exponents 1 34E 12 1 234E8 4 4 Base 2 literal 240101 0101 4 5 Base 8 literal 94377 4 6 Base 16 literal 16 FFEO 4 7 Boolean zero and one 0 1 5 1 Empty String Descriptions 5 2 String of length one containing a character A Descriptions 5 3 String of length one containing a space Descriptions 5 4 String of length one containing a single quote Descriptions character 6 2 String dollar sign Descriptions 6 3 String single quote Descriptions 6 4 String Line Feed L or I Descriptions 6 5 String New line N or n Descriptions 6 6 String From Feed page P or p Descriptions 6 7 String Carriage return R or r Descriptions 6 8 String Tab T or t Descriptions 10 1 BOOL Data Type Tag variable definition 10 2 SINT Data Type Tag variable definition 10 3 INT Data Type Tag variable definition 10 4 DINT Data Type Tag variable definition 10 10 REAL Data Type Tag variable definition 10 12 Time Tag variable definition TIMER Structure Publication 1756
74. ad a Project Using Nonvolatile Memory Loada Project In this task you use RSLogix 5000 software to load the project from nonvolatile memory ATTENTION During a load all active servo axes are turned off Before you load a project make sure that this will not cause any unexpected movement of an axis Steps 1 Go online with the controller 2 Did the following dialog box open Connected To Go Online Ea Options General Date Time Major Faults Minor Faults Nonvolatile Memory Condition The project file ACD was not found in your project directory Connected Controller Controller Name no name gt 42873 If Then No Go to step 3 Yes Go to step 5 3 Put the controller in Program mode Rem Program or Program Rem Prog jj Not Running No Forces y D Controller OK 1m No Edits a Battery OK W 0 OK Redundancy Do hh 4 4 On the Online toolbar click the controller properties button 5 Click the Nonvolatile Memory tab Publication 1756 PM001C EN P June 2001 Store and Load a Project Using Nonvolatile Memory 19 7 42865 6 Choose Load Store Project that is currently in the nonvolatile memory of Project that is currently in the user memory RAM the controller if any project is there of the controller On Power Up Remote Run 42866 A 7 Choose Load gt A dialog box asks you to confirm the load 8 To load the project from
75. ading edge of book 2 8 0 5 5 3 5 3 5 Position of second hole from leading edge of book 3 975 7 5 5 5 Position of third hole from leading edge of book 4 975 75 Position of fourth hole from leading edge of book 5 9 75 Position of fifth hole from leading edge of book In the Tags window the elements are in the order depicted below Program Tags MainProgram Scope MainProgram Show Show All 2 Sot IT Tag Name 4 Alias For Base Tag Type REAL E 6 hole_position 0 0 REAL hole_position 0 1 REAL hole_position 0 2 REAL hole position 0 3 REAL hole position 0 4 REAL hole_position 0 5 REAL hole position 1 0 REAL hole_position 1 1 REAL hole_position 1 2 REAL hole_position 1 3 REAL A maxim When The rig ht most dimension increments to its um value then starts over he right most dimension starts over the dimension to the left increments by one 42367 This array contains a two dimensional grid of elements six elements by six elements Publication 1756 PM001C EN P June 2001 3 6 Organize Tags EXAMPLE User defined data type that stores a recipe In a system of several tanks each tank can run a variety of recipes Because the recipe requires a mix of data types REAL DINT BOOL etc a user defined data type is us
76. after a power loss cleared the memory because there was no battery use ladder logic to flag that your project loaded from nonvolatile memory Go to Check for a Load on page 19 9 remove a project from the nonvolatile memory of the controller Go to Clear Nonvolatile Memory on page 19 10 Store and Load a Project Using Nonvolatile Memory 19 3 Store a Project In this task you store a project in the nonvolatile memory of the controller This overwrites a project that is currently in the nonvolatile memory ATTENTION During a store all active servo axes are turned off Before you store a project make sure that this will not cause any unexpected movement of an axis Before you store the project make all the required edits to the logic download the project to the controller Steps 1 Go online with the controller 2 Put the controller in Program mode Rem Program or Program Rem Prog j Not Running HSE y D Controller OK 7 Battery OK No Edits k Redundancy 1 0 OK i 3 42627 3 On the Online toolbar click the controller properties button 4 Click the Nonvolatile Memory tab General Serial Port System Protocol User Protocol Maior Faults 42865 Minor Faults Date Time Advanced Fie Nonvolatile Memory Image in Nonvolatile Memory 5 Name name of controller Type 1756 L55 4 ControlLogix 5555 Controller 5 Choose Load
77. ag from step 13 19 Enter a tag name to store the value for use in your application Define the data type as DINT 20 Does the string have another value that you want to use If Then yes A Add 1 to the Result of the Find instruction The tag from step 9 B Repeat steps 2 19 no Stop You are done with this procedure Publication 1756 PM001C EN P June 2001 13 12 Process ASCII Characters Builda String Use the following steps to build a string from variables in your application You can then send the string to an ASCII triggered device such as a MessageView terminal In this procedure you build a string that contains two variables For example an operator terminal may require a string that looks like this Ctrl F message address CR control character delimiter termination character If you need to include more variables use additional INSERT or CONCAT instructions If you need to send a floating point value use a RTOS instruction in place of the DTOS instruction The final string will not include the termination character When you send the string use an AWA instruction to automatically append the termination character Steps 1 Enter the following rung DTOS INSERT DTOS CONCAT DINT to String Insert String DINT to String String Concatenate Source Source Source Source Source B Dest Dest Source B Dest St
78. ains 10 REALs enter 20 for the Message size TIP When a PLC 5C controller consumes a tag that is produced by a Logix5000 controller it stores the data in consecutive 16 bit integers The PLC 5C stores floating point data which requires Re 32 bits regardless of the type of controller as follows e The first integer contains the upper left most bits of the value The second integer contains the lower right most bits of the value This pattern continues for each floating point value Publication 1756 PM001C EN P June 2001 10 8 Communicate with Another Controller 5 In the PLC 5C controller re construct the floating point data as depicted in the following example EXAMPLE Re constructing a floating point value The two MOV instructions reverse the order of the integers as the integers move to a new location Because the destination of the COP instruction is a floating point address it takes two consecutive integers for a total of 32 bits and converts them to a single floating point value 42354 6 In RSNetWorx for ControlNet software schedule the network Publication 1756 PM001C EN P June 2001 Communicate with Another Controller 10 9 Consume Integers from a PLC 5C Controller 1 Open RSNetWorx for ControlNet software 2 In the ControlNet configuration of the PLC 5C controller insert a Send Scheduled Message 3 Open the RSLogix 5000 project 4 In the controller organizer ad
79. alPort Control SerialPort Control Length Characters Sent 13 1 42236b 10 Enter the input condition s that determines when the characters are to be sent You can use any type of input instruction The instruction must change from false to true each time the characters are to be sent 11 Enter O 12 Enter the tag name that stores the ASCII characters Define the data type as a string 13 Enter a tag name for the AWT instruction and define the data type as SERIAL PORT CONTROL 14 Enter the number of characters to send nine characters from the string 2 tag to a MessageView terminal The 74 counts as one EXAMPLE When the temperature reaches the low limit emp Jow is on the AWT instruction sends character It is the hex code for the Ctrl T character i temp_low ASCII Write E Channel 0 Source string 2 ND 142224101 r SerialPort Control temp low write R String Length 9 Characters Sent 9 42229 15 Go to Enter ASCII Characters on page 12 21 Publication 1756 PM001C EN P June 2001 16 17 18 19 20 21 22 Communicate with an ASCII Device 12 17 Enter the following rung MOV AWA ASCII Write Append Channel Source Move Source y Dest SerialPort Control SerialPort Control Length Characters Sent 21 22 20 42236c Enter the input condition s that determines when the characters are to be sent
80. arge Array on page 11 1 Publication 1756 PM001C EN P June 2001 Communicate with Another Controller 10 11 Senda Message To organize your data for a message follow these guidelines 1 For each message create a tag to control the message Create the tag at the controller scope Use the MESSAGE data type The following example shows the use of the MESSAGE data type EXAMPLE Message to another Logix5000 controller When count_send is on count_msg sends data count_send count_msg en MSG lF J E Type Unconfigured __ H lt CEND Message Control count msg I DND CER Type MESSAGE Scope Controller 42188 2 For the tags that the messages will use source or destination tags create the tags at the controller scope 3 In the Logix5000 controller use the DINT data type for integers whenever possible Logix5000 controllers execute more efficiently and use less memory when working with 32 bit integers DINTs Publication 1756 PM001C EN P June 2001 10 12 Communicate with Another Controller 4 If your message is to or from a PLC 5 or SLC 500 controller and it transfers integers not REALs use a buffer of INTs a Create a buffer for the data controller scope using the INT x data type where x is the number of integers in the message For only one integer omit x Use the buffer in the message c Use an FAL instruction to move the data bet
81. art Dest 42813 2 Enter the input condition s that determines when to build the string 3 Enter the DINT tag that contains the first value for the string Enter a tag name to stores the ASCII representation of the value Define the data type as a string Publication 1756 PMO001 C EN P June 2001 Process ASCII Characters 13 13 DTOS DINT to String Source 2 Dest i INSERT Insert String Source DTOS BINT to String Source Dest CONCAT String Concatenate Source Source B Dest Source B Start Dest 42813 9 10 5 Enter a tag name to store the control and delimiter characters for the string Define the data type as a string 6 Double click the value area of the Source A B String Browser MY_msg Big Position 0 Count D of 82 Enos gt 42615 7 Type the control character and delimiter and choose OK For a control character type the hex code of the character For a list of hex codes see the back cover of this manual 8 Enter the tag that stores the ASCII representation of the first value The tag from step 4 9 Enter 2 This puts the value after the first character control character in Source A 10 Enter a tag name to store the partially completed string Define the data type as a string Publication 1756 PM001C EN P June 2001 13 14 Process ASCII Characters
82. can create additional routines and call them from the main routine controller scope Data accessible anywhere in the controller The controller contains a collection of tags that can be referenced by the routines and alias tags in any program as well as other aliases in the controller scope See program scope Coordinated System Time CST A 64 bit value that represents the number of microseconds since the CST master controller started counting The CST value is stored as a DINT 2 array where first element stores the lower 32 bits second element stores the upper 32 bits You can use the CST timestamp to compare the relative time between data samples Publication 1756 PM001C EN P June 2001 Glossary 9 COUNTER Structure data type that contains status and control information for counter instructions data type A definition of the memory size and layout that will be allocated when you create a tag of that data type decimal Integer values displayed and entered in base 10 No prefix Not padded to the length of the integer See binary hexadecimal octal description Optional text that you can use to further document your application You can use any printable character including carriage return tab and space Descriptions do not download to the controller They remain in the offline project file Descriptions have these length limitations For tags you can use up to 120 character
83. ce status in the following ways RSLogix5000 software application logic FORCE LED Logix5550 controllers do not have an LED to indicate force status If the FORCE LED is Then off e No tags contain force values e Forces are inactive disabled flashing e Atleast one tag contains a force value e Force values are inactive disabled solid e Forces are active enabled e Force values may or may not exist The following example shows how to check whether forces are present and enabled and set your own LED indicator This GSV instruction gets the current force information and stores it in DINT status GSV Get system value CIP Object class MODULE CIP Object name Attribute name ForceStatus Dest status De This indicator can be a light to display This bit identifies that This bit identifies that when forces are forces are installed forces are enabled enabled status 0 status 1 force_indicator Publication 1756 PM001C EN P June 2001 14 8 Force Values Notes Publication 1756 PM001C EN P June 2001 Chapter 15 Develop a Fault Routine When to Use This If a fault condition occurs that is severe enough for the controller to shut down the controller generates a major fault and stops the Procedure execution of logic Depending on your application you may not want all major faults to shut down your entire system In those situations you can use a fault routine to clear a
84. ced tag a specified interval receive data from another controller over the backplane or consumed tag ControlNet network at a specified interval If you plan to use produced or consumed tags you must follow additional guidelines as you organize your tags Refer to Communicate with Another Controller on page 10 1 The following integer data types are also available SINT 8 bit integer INT 16 bit integer Typically instructions convert SINT or INT values to an optimal data type usually a DINT or REAL value during execution Because this requires additional time and memory minimize the use of the SINT and INT data types Publication 1756 PM001C EN P June 2001 3 14 Organize Tags Publication 1756 PM001C EN P June 2001 Chapter 4 Program Routines When to Use This After you organize your project into an initial set of routines and tags Procedure use this procedure to develop the logic that each routine will execute How to Use This Procedure T program a routine do the following steps Open the Routine Enter Ladder Instructions Enter Function Block Instructions Assign Operands Verify the Routine Open the Routine To close a folder and hide its contents collapse do one of the following gt E Controller name of controller e Double click the folder A Controller Tags e Select the folder and press the lt key Controller Fault Handler e Click the sign o J Power U
85. ctrl W ETB 23 17 7 55 37 W 87 57 Ww 119 77 ctrl X CAN 24 18 8 56 38 X 88 58 X 120 78 ctrl Y EM 25 19 9 57 39 Y 89 59 y 121 79 ctrl Z SUB 26 1A 58 3A Z 90 5A 2 122 7A ctri ESC 2 1B 59 3B 91 5B 123 7B ctrl FS 28 1C lt 60 3C 92 5C 124 7C ctrl GS 29 1D 61 3D 93 5D 125 7D ctrI RS 30 1E gt 62 3E 7 94 5E 126 7E ctrl _ US 31 1F 63 3F 95 5F DEL 127 7F Reach us now at www rockwellautomation com Wherever you need us Rockwell Automation brings together leading brands in industrial automation including Allen Bradley controls Reliance Electric power transmission products Dodge mechanical power transmission components and Rockwell Software Rockwell Automation s unique flexible approach to helping customers achieve a competitive advantage is supported by thousands of authorized partners distributors and system integrators around the world Allen Bradley RELIANCE PEAME DOGE Americas Headquarters 1201 South Second Street Milwaukee WI 53204 USA Tel 1 414 382 2000 Fax 1 414 382 4444 Heo Ro ckwell European Headquarters SA NV avenue Herrmann Debroux 46 1160 Brussels Belgium Tel 32 2 663 06 00 Fax 32 2 663 06 40 Asia Pacific Headquarters 27 F Citicorp Centre 18 Whitfield Road Causeway Bay Hong Kong Tel 852 2887 4788 Fax 852 2508 1846 Automation PN 957464 72 Publication 1756 PM001C EN P June 2001
86. d tag p gt consumed tag controller_3 H consumed tag controller 4 L consumed tag Publication 1756 PM001C EN P June 2001 10 2 Communicate with Another Controller You can use produced and consumed tags with the following controller and network combinations This controller Can produce and consume tags over this network Backplane ControlNet Ethernet PLC 5 v ControlLogix v v v FlexLogix v SoftLogix v Produced and consumed tags work as follows A connection transfers the data between controllers Multiple controllers can consume receive the data The data updates at the requested packet interval RPD as configured by the consuming tags Each produced or consumed tag uses the following number of connections Each Uses this many connections produced tag number of consumers 1 consumed tag 1 EXAMPLE Connections used by produced or consumed tags Producing a tag for 5 controllers consumers uses 6 connections 5 consumers 1 6 Producing 4 tags for 1 controller uses 8 connections Each tag uses 2 connections 1 consumer 1 2 2 connections per tag x 4 tags 8 connections Consuming 4 tags from a controller uses 4 connections 1 connection per tag x tags 4 connections Publication 1756 PM001C EN P June 2001 Communicate with Another Controller 10 3 What You Need To Do To share data with another controll
87. d the PLC 5C controller to the I O configuration 5 Create a user defined data type that contains the following members Data type Description DINT Status INT x where x is the output sizeof Data produced by a PLC 5C controller the data from the PLC 5C controller If you are consuming only one INT no dimension is required 6 Create a consumed tag with the following properties For this tag property Type or select Tag Type Consumed Controller The PLC 5C that is producing the data Remote Instance The message number from the ControlNet configuration of the PLC 5C controller RPI A power of two times the NUT of the ControlNet network For example if the NUT is 5ms select an RPI of 5 10 20 40 etc Data Type The user defined data type that you created in Step 5 7 In RSNetWorx for ControlNet software schedule the network Publication 1756 PM001C EN P June 2001 10 10 Communicate with Another Controller Adjust for Bandwidth Limitations When you share a tag over a ControlNet network the tag must fit within the bandwidth of the network e As the number of connections over a ControlNet network increases several connections including produced or consumed tags may need to share a network update time NUT Since a ControlNet network can only pass 500 bytes in one NUT the data of each connection must be less then 500 bytes to fit into the NUT Depending on the size of your
88. destination array starting at the offset value The offset value moves to array ack O which signals that the copy is complete Array ack 1 resets to zero and waits to signal the arrival of a new packet If the last element of the packet is not equal 999 the transfer of the packet to the controller may not be complete so 999 moves to array ack 1 This signals the producer to return the value of 999 in the last element of the packet to verify the transmission of the packet NEQ Not Equal Source A array_packet 123 0 Source B array_ack 0 0 EQU MOV Equal Move Source A array_packet 124 Source array_packet 123 0 0 Source B 999 Dest array offset 0 COP Copy File Source array packet 0 Dest array array offset Length 123 MOV Move Source array packet 123 0 Dest array ack 0 0 CLR Clear Dest array ack 1 0 NEQ MOV Not Equal Move m Source A array_packet 124 Source 999 0 Source B 999 Dest array ack 1 0 42356 Publication 1756 PM001C EN P June 2001 Produce a Large Array 11 7 Transferring a large array as smaller packets improves system performance over other methods of transferring the data Fewer connections are used than if you broke the data into multiple arrays and sent each as a produced tag For example an array wi
89. dure Create a User Defined Major Fault Chapter 16 Create a User Defined Major Fault If you want to suspend shut down the controller based on conditions in your application create a user defined major fault With a user defined major fault You define a value for the fault code The controller handles the fault the same as other major faults The controller changes to the faulted mode major fault and stops executing the logic Outputs are set to their configured state or value for faulted mode EXAMPLE User defined major fault When input_value is greater than 80 produce a major fault and generate a fault code of 999 1 Does a fault routine already exist for the program If Then Yes Go to step 2 No Create a fault routine for the program A In the controller organizer right click name_of_program and select New Routine B In the name box type a name for the fault routine name_of_fault_routine From the Type drop down list select Ladder Click OK Right click name of program and select Properties Click the Configuration tab From the Fault drop down list select name of fault routine Click OK Double click name o fault routine Enter an NOP instruction so the routine verifies without an error G i rn CO C2 CL LL Publication 1756 PM001C EN P June 2001 16 2 Create a User Defined Major Fault 2 In the main routine of the program enter th
90. e verify ASCII characters 12 14 controller 2 5 Publication 1756 PM001C EN P June 2001 AB Allen Bradley uy Publication Problem Report If you find a problem with our documentation please complete and return this form Pub Title Type Logix5000 Controllers Common Procedures Programming Manual Cat No 1756 Lx 1769 Lx Pub No 1756 PMOOT1C EN P Pub Date June 2001 PartNo 957464 72 1789 Lx 1794 Lx Check Problem s Type Describe Problem s Internal Use Only Technical Accuracy text illustration Completeness procedure step illustration definition info in manual What information is missing example guideline feature accessibility explanation other info not in manual Clarity What is unclear Sequence What is not in the right order Other Comments Use back for more comments Your Name Location Phone Return to Marketing Communications Allen Bradley 1 Allen Bradley Drive Mayfield Hts OH 44124 6118Phone 440 646 3176 FAX 440 646 4320 Publication TCCG 5 21 August 1995 PN 955107 62 PLEASE FASTEN HERE DO NOT STAPLE Other Comments PLEASE FOLD HERE NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES BUSINESS REPLY MAIL FIRST CLASS MAIL PERMIT NO 18235 CLEVELAND OH POSTAGE WILL BE PAID BY THE ADDRESSEE Allen Bradley Ear a DODGE 2 Rockwell Automation
91. e following rung conditions when the JSR controller should shut down where name_of_fault_routine Jump to Subroutine Routine name name_of_fault_routine Input par x 42373 is routine from step 1 x value for the fault code EXAMPLE Create a user defined major fault When input_value is greater than or equal to 80 execution jumps to name_of_fault_routine A major fault occurs and the controller enters the faulted mode Outputs go to the faulted state The Controller Properties dialog box Major Faults tab displays the code 999 GEQ Grtr Than or Eql A gt B Source A input_value 0 Source B 80 Publication 1756 PM001C EN P June 2001 JSR Jump to Subroutine Routine name name_of_fault_routine Input par 999 42373 When to Use This Procedure Monitor Minor Faults To check for a Chapter 17 Monitor Minor Faults If a fault condition occurs that is not severe enough for the controller to shut down the controller generates a minor fault e The controller continues to execute e You do not need to clear a minor fault To optimize execution time and ensure program accuracy you should monitor and correct minor faults To use ladder logic to capture information about a minor fault Do this periodic task overlap 1 Enter a GSV instructions that gets the FAULTLOG object MinorFaultBits attrib
92. e of the task is greater than the periodic rate configured for the task See periodic task predefined structure A structure data type that stores related information for a specific instruction such as the TIMER structure for timer instructions Predefined structures are always available regardless of the system hardware configuration See product defined structure Publication 1756 PM001C EN P June 2001 Glossary 24 Publication 1756 PM001C EN P June 2001 prescan A function of the controller where the logic is examined prior to execution in order initialize instructions and data The controller performs prescan when you change the controller from Program mode to Run mode priority Specifies which task to execute first if two tasks are triggered at the same time The task with the higher priority executes first Priorities range from 1 15 with 1 being the highest priority A higher priority task will interrupt any lower priority task If two tasks with the same priority are triggered at the same time the controller switches between the tasks every millisecond postscan A function of the controller where the logic within a program is examined before disabling the program in order reset instructions and data power up handler An optional task that executes when the controller powers up in the Run mode To use the Power Up Handler you must create a power up program and associated main routine
93. e the data go to Process ASCII Characters on page 13 1 Publication 1756 PM001C EN P June 2001 12 12 Communicate with an ASCII Device 19 Publication 1756 PM001C EN P June 2001 14 15 16 17 18 19 20 21 22 23 Enter the following rung ABL ASCII Test For Buffer Line Channel SerialPort Control Character Count T 42235 Enter O Enter a tag name for the ABL instruction and define the data type as SERIAL PORT CONTROL Enter the EN bit of the ABL tag The tag from step 16 Enter the following rung 21 20 ASCII Read Line Channel Destination AA SerialPort Control SerialPort Control Length Characters Read 22 23 42235 Enter the FD bit of the ABL tag The tag from step 16 Enter 0 Enter a tag name to store the ASCII characters Define the data type as a string Enter a tag name for the ARL instruction and define the data type as SERIAL_PORT_CONTROL Enter the maximum number of characters to read if no termination character s is found Communicate with an ASCII Device 12 13 e Since each message ends in a carriage return 0D the carriage return is configured as the termination character in the Controller Properties dialog box User Protocol tab EXAMPLE Continuously tests the buffer for a message from the MessageView terminal When the ABL finds a carriage return its sets the FD bit ABL ASCII Test Fo
94. each dimension s size as depicted in the following examples This array Stores data like For example one dimension Tag name Type Dimension 0 Dimension 1 Dimension 2 one d array DINT 7 7 total number of elements 7 valid subscript range DINT x where x 0 6 two dimension Tag name Type Dimension 0 Dimension 1 Dimension 2 two d array DINT45 4 5 total number of elements 4 5 20 valid subscript range DINT x y where x 0 3 y 0 4 three dimension Tag name Type Dimension 0 Dimension 1 Dimension 2 mA three d array DINT 2 3 4 2 3 4 total number of elements 2 3 4 24 valid subscript range DINT x y z where x 0 1 y 0 2 z 0 3 You can modify array dimensions when programming offline without loss of tag data You cannot modify array dimensions when programming online application The combination of routines programs tasks and I O configuration used to define the operation of a single controller See project B base tag A tag that actually defines the memory where a data element is stored See alias tag Publication 1756 PM001C EN P June 2001 Glossary 5 bidirectional connection A connection in which data flows in both directions from the originator to the receiver and from the receiver to the originator See connection unidirectional connection binary Integer valu
95. eates the primary configuration and communication connection to a module The owner controller writes configuration data and can establish a connection to the module See listen only connection Glossary 23 path A description of the devices and networks between one device and another A connection from one device to another follows the specified path See connection periodic task A task that is triggered by the operating system at a repetitive period of time Use a periodic task for functions that require accurate or deterministic execution e Whenever the time expires the task is triggered and its programs are executed Data and outputs established by the programs in the task retain their values until the next execution of the task or they are manipulated by another task You can configure the time period from 1 ms to 2000 s The default is 10 ms Ensure that the time period is longer than the sum of ATTENTION td the execution times of all the programs assigned to the task If the controller detects that a periodic task trigger occurs for a task that is already operating a minor fault occurs Periodic tasks always interrupt the continuous task Depending on the priority level a periodic task may interrupt other periodic tasks in the controller See continuous task periodic task overlap A condition that occurs when a task is executing and the same task is triggered again The execution tim
96. ed Name of data type TANK Member Name Data Type temp REAL deadband REAL step DINT step_time TIMER preset DINT 6 mix BOOL An array that is based on this data type would look like this Program Tags MainProgram Scope MainProgram Show Show All j Sort Alias For Base Tag array of recipes Type Tag Name D ecipe TANK 3 This array contains first recipe gt recipe 0 TANK three elements of the T T t TANK data type ecipe 0 temp REAL ecipe D deadband REAL F recipe step DINT members of the recipe H recipe D step time TIMER F recipe preset DINT 5 ecipe 0 mix BOOL EH recipe 1 TANK recipe 2 TANK Monitor Tags Edit Tags iaf 1 42368 Publication 1756 PM001C EN P June 2001 Organize Tags 3 7 EXAMPLE User defined data type that stores the data that is required to run a machine Because several drill stations require the following mix of data a user defined data type is created Name of data type DRILL_STATION Member Name Data Type part_advance BOOL hole_sequence CONTROL type DINT hole_position REAL depth REAL total_depth REAL An array that is based on this data type would look like this array of drills p first drill gt data for the drill
97. eduled connection This corresponds to 125 DINT or REAL elements of an array To transfer an array of more than 125 DINTS or REALs use a produced consumed tag of 125 elements to create a packet of data You can then use the packet to send the array piecemeal to another controller When you send a large array of data in smaller packets you must ensure that the transmission of a packet is complete before the data is moved into the destination array for these reasons Produced data over the ControlLogix backplane is sent in 50 byte segments Data transmission occurs asynchronous to program scan The logic that this section includes uses an acknowledge word to make sure that each packet contains new data before the data moves to the destination array The logic also uses an offset value to indicate the starting element of the packet within the array Because of the offset and acknowledge elements each packet carries 123 elements of data from the array as depicted below Producer Consumer array array packet packet 123 offset offset 124 acknowledge acknowledge Publication 1756 PM001C EN P June 2001 11 2 Produce a Large Array In addition the array must contain an extra 122 elements In other words it must be 122 elements greater than the greatest number of elements that you want to transfer These elements serve as a buffer Since
98. el machine_on JE iL drill 1 on machine on lt Local 0 0 Data 2 gt drill 1l part advance JE C2 JE 1 1 conveyor on conveyor onis an alias for POM Mp c MM OS Local 0 0 Data 0 JF the starter contactor for the conveyor motor 42351 Display Alias Information To show in your logic the tag to which an alias points 1 From the Tools menu select Options 2 Click the Ladder Display tab 3 Select the Show Tag Alias Information check box 4 Click OK Publication 1756 PM001C EN P June 2001 Assign an Alias Assign Aliases 6 3 To assign a tag as an alias tag for another tag 1 From the Zogic menu select Edit Tags Program Tags MainProgram Scope MainProgram Show Show All v Sort Tag Name drill 1 Alias For Base Tag DRILL STATID drill 1 depth lirnit Local 2 l Data 3 C drill 1 forward Local 0 O D ata 3 C Locak2 l Data 3 C BOOL Local 0 Q D ata 3 C drill 1 home linit Local 2 l Data 2 C Loca2 Data 2 C drill 1 on Local 0 O D ata 2 C Local 0 Q D ata 2 C drill 1 retract Local 0 0 Data 4 C Local 0 0 Data 4 C hole_position machine on A 423560 2 Select the scope of the tag 3 To the right of the tag name click the Alias For cell The cell displays a W 4 Click the V 5 Select the
99. en a routine for the logic that will create packets of data 7 Enter the following logic Times how long it takes to send the entire array TON Timer On Delay EN Timer array transfer timer DN Preset 10000000 Accum 0 When the offset value in array_ack O is not equal to the current offset value but array ack 1 equals 999 the consumer has begun to receive a new packet so the rung moves 999 into the last element of the packet The consumer waits until it receives the value 999 before it copies the packet to the array This guarantees that the consumer has new data NEQ Not Equal Source A array_ack 0 Source B array_packet 123 0 0 EQU Equal MOV Source A array ack 1 0 Source B 999 Move Source 999 Dest array packet 124 0 Publication 1756 PM001C EN P June 2001 11 4 Produce a Large Array When the offset value in array_ack O is equal to the current offset value the consumer has copied the packet to the array so the rung checks for more data to transfer If the offset value plus 123 is less than the size of the array there is more data to transfer so the rung increases the offset by 123 Otherwise there is no more data to transfer so the rung resets the offset value logs the transfer time and resets the timer In either case the rung uses the new offset value to create a new packet of data appends the new o
100. er s perform these actions Organize Tags for Produced or Consumed Data Produce a Tag Consume a Produced Tag Depending on your system you may also have to perform these actions Produce Integers for a PLC 5C Controller Produce REALs for a PLC 5C Controller Consume Integers from a PLC 5C Controller Adjust for Bandwidth Limitations Organize Tags for Produced or Consumed Data As you create tags that will eventually produce or consume data share data follow these guidelines 1 Create the tags at the controller scope You can only share controller scoped tags 2 Use one of these data types e DINT e REAL array of DINTs or REALs user defined 3 To share a data type other than those listed in guideline 2 create a user defined data type that contains the required data 4 Use the same data type for the produced tag and corresponding consumed tag s 5 To share tags with a PLC 5C controller use a user defined data type See these sections Produce Integers for a PLC 5C Controller 10 6 Produce REALs for a PLC 5C Controller 10 7 Consume Integers from a PLC 5C Controller 10 9 Publication 1756 PM001C EN P June 2001 10 4 Communicate with Another Controller 6 Limit the size of the tag to less than or equal to 500 bytes If you must transfer more than 500 bytes create logic to transfer the data in packets Refer to Produce a Large Array on page 11 1 7 If you share the tag o
101. es any project that is currently in the controller See nonvolatile memory store main routine The first routine to execute when a program executes Use the main routine to call execute other routines subroutines Glossary 15 major fault A fault condition that is severe enough for the controller to shut down unless the condition is cleared When a major fault occurs the controller 1 Sets a major fault bit 2 Runs user supplied fault logic if it exists 3 If the user supplied fault logic cannot clear the fault the controller goes to faulted mode 4 Sets outputs according to their output state during program mode 5 OK LED flashes red The controller supports two levels for handling major faults program fault routine Each program can have its own fault routine The controller executes the program s fault routine when an instruction fault occurs If the program s fault routine does not clear the fault or a program fault routine does not exist the controller proceeds to execute the controller fault handler if defined e controller fault handler If the controller fault handler does not exist or cannot clear the major fault the controller enters faulted mode and shuts down At this point the FAULTLOG is updated See the next page All non instruction faults I O task watchdog etc execute the controller fault handler directly No program fault routine is called The
102. es displayed and entered in base 2 each digit represents a single bit Prefixed with 2 Padded out to the length of the boolean or integer 1 8 16 or 32 bits When displayed every group of four digits is separated by an underscore for legibility See decimal hexadecimal octal bit Binary digit The smallest unit of memory Represented by the digits 0 cleared and 1 set BOOL An data type that stores the state of a single bit where 0 equals off 7 equals on branch There is no limit to the number of parallel branch levels that you can enter The following figure shows a parallel branch with five levels The main rung is the first branch level followed by four additional branches input instruction output instruction S M 4 _ NP we MN Z7 s NF nr KF Publication 1756 PM001C EN P June 2001 Glossary 6 Publication 1756 PM001C EN P June 2001 You can nest branches to as many as 6 levels The following figure shows a nested branch The bottom output instruction is on a nested branch that is three levels deep input instruction output instruction AA No ow E Xe ud ga NU byte A unit of memory consisting of 8 bits cached connection With the MSG instruction a cached connection instructs the controller to maintain the connection even after the MSG instruction completes This is useful
103. f 1 26 5 AND BAND instruction in FBD 26 6 OR BOR instruction in FBD 26 7 XOR BXOR instruction in FBD 26 8 NOT BNOT instruction in FBD 2 1 Select SEL instruction in FBD 27 2a Maximum select Functionality contained in ESEL instruction in FBD 27 2b Minimum select Functionality contained in ESEL instruction in FBD 27 3 High Low limit HLL instruction in FBD 27 4 Multiplexer MUX instruction in FBD 28 5 Comparison greater than GRT instruction 28 6 Comparison greater than or equal GRE instruction 28 7 Comparison equal EQU instruction 28 8 Comparison less than LES instruction 28 9 Comparison less than or equal LEQ instruction 28 10 Comparison not equal NEQ instruction 29 1 String length Contained as parameter of STRING data type 29 4 Middle string MID instruction in ladder 29 5 String concatenation CONCAT instruction in ladder 29 6 String insert INSERT instruction in ladder 29 7 String delete DELETE instruction in ladder 29 9 Find string FIND instruction in ladder 32 1 Input read FBD editor Publication 1756 PM001C EN P June 2001 B 8 1EC61131 3 Compliance Table Feature Feature Description Extensions and Implementation Notes Number Number 32 2 Input write FBD editor 32 3 Output read FBD editor 32 4 Output write FBD editor 34 1 Bistable set dominant SETD instruction in FBD 34 2 Bistable reset dominant RESD instr
104. f controller folder and select Properties 3 Click the Advanced tab 4 In the System Overhead Time Slice text box type or select the percentage of overhead time 10 90 5 Click OK Publication 1756 PM001C EN P June 2001 Glossary 36 T tag A named area of the controller s memory where data is stored Tags are the basic mechanism for allocating memory referencing data from logic and monitoring data The minimum memory allocation for a tag is four bytes When you create a tag that stores a BOOL SINT or INT which are smaller than four bytes the controller allocates four bytes but the data only fills the part it needs User defined data types and arrays store data in contiguous memory and pack smaller data types into 32 bit words The following examples show memory allocation for various tags start which uses the BOOL data type Memory Bits allocation 31 1 0 station_status which uses the DINT data type Memory Bits allocation 31 0 allocation station_status mixer which uses a user defined data type Memory Bits allocation 31 24 23 16 15 8 7 0 allocation 1 mixer pressure allocation 2 mixer temp allocation 3 mixer agitate_time allocation 4 unused unused unused bit 0 mixer inlet bit 1 mixer drain bit 2 mixer agitate Publication 1756 PM001C EN P June 2001 Glossary 37 temp_buffer which is an array of four INTS
105. f the data type of the attribute Then is one element e g DINT 6 In the list of attributes for the object identify the attribute that Create a tag for the attribute more than one element e g DINT 7 A Create a user defined data type that matches the organization of data that is used by the attribute B Create a tag for the attribute and use the data type from Step A 8 In your ladder logic routine enter the appropriate instruction To Enter this instruction get the value of an attribute GSV set the value of an attribute SSV Publication 1756 PM001C EN P June 2001 5 4 Access System Values 9 Assign the required operands to the instruction For this operand Class name Select name of the object Instance name name of the specific object e g name of the required I O module task message e Not all objects require this entry e To specify the current task program or routine select THIS Attribute Name name of the attribute Dest GSV tag that will store the retrieved value e f the tag is a user defined data type or an array select the first member or element Source SSV tag that stores the value to be set e f the tag is a user defined data type or an array select the first member or element The following examples gets the current date and time EXAMPLE Get a system value At the first scan gets the DateTime attribute of the
106. ffset value to the packet and clears the acknowledge element of the packet packet 124 EQU Equal Source A array ack 0 0 Source B array packet 123 0 CMP ADD Compare Add Expression array ack 0 123 array size Source A array packet 123 0 Source B 123 Dest array offset CMP CLR Compare Clear Expression array ack 0 123 gt array size Dest array offset 0 MOV Move Source array_transfer_timer ACC 0 Dest array_transfer_time 0 array_transfer_timer RES COP MOV CLR Copy File Move Clear Source array array offset Source array offset Dest array packet 124 Dest array packet 0 0 0 Length 123 Dest array packet 123 GRT Greater Than A gt B Source A array transfer time 0 Source B array transfer time max 0 0 If the current transfer time is greater than the maximum transfer time updates the maximum transfer time This maintains a record of the longest time to transfer data Publication 1756 PM001C EN P June 2001 MOV Move Source array transfer time 0 Dest array transfer time max 0 42355 Produce a Large Array 11 5 10 11 12 Open the RSLogix 5000 project that will consume the array In the Controller Tags folder create the following tags P Tag Name Type
107. first member Publication 1756 PM001C EN P June 2001 Organize Tags 3 9 5 Specify the data type for the member See Table 3 B on page 3 1 For an array use the following format data_type x where x is the number of elements in the array EXAMPLE If the member is an array of six DINTs type DINT 6 6 To display the value s of the member in a different style radix select the style 7 Type a description for the member optional 8 Click Apply 9 More members If Then Yes Repeat steps 4 to 8 No Click OK Notes If you include members that represent I O devices you must use ladder logic to copy the data between the members in the structure and the corresponding I O tags Refer to Buffer I O on page 8 1 When you use the BOOL SINT or INT data types place members that use the same data type in sequence more efficient less efficient BOOL BOOL BOOL DINT BOOL BOOL DINT DINT DINT BOOL Publication 1756 PM001C EN P June 2001 3 10 Organize Tags Create a Tag To create a tag including an array 1 From the Zogic menu select Edit Tags Program Tags MainProgram Iof x Scope MainProgram Show Show All m So Tag Name TagName Alias For Description E 2 Select a scope for the tag 2 p A Base Tag If you will use the tag Then select in more than one program within
108. following elements Purpose Performs an operation on an input value s and produces an output value s e Pins on the left of the block are input pins e Pins on the right of the block are output pins input reference IREF Supplies a value from an input device or a tag in another routine or controller output reference OREF Supplies a value to an output device or a tag in another routine or controller output wire connector OCON Connects function blocks that are either far apart or on different sheets input wire connector ICON Publication 1756 PM001C EN P June 2001 e Each OCON requires a unique name e For each OCON you must have at least one corresponding ICON i e an ICON with the same name as the OCON e Multiple ICONs can reference the same OCON This lets you disperse data to several points in your routine To enter function block instructions open a function block routine and complete the following steps 42587 Program Routines 4 5 Step Detailed actions 1 Enter the blocks that perform the A Press the nsert key required functions of the routine B Type the mnemonic for the required block C Choose OK D Drag the block to a place on the diagram that makes the diagram easy to read The location of a block does not affect the order in which the blocks execute 2 Configure the properties of each A In the block click E block D Parameters Tag
109. g Type drill_1 DRILL_STAT drill_1_depth_limit Local 2 Data 3 C Locak2 Data 3 C BOOL drill 1 forward Local 0 O D ata 3 E Local 0 0 Data 3 C BOOL drill 1 home limit Local 2 l Data 2 C Locak2 Data 2 C BOOL drill 1 on Local 0 O D ata 2 C Local 0 0 Data 2 C BOOL drill 1 retract Local 0 0 Data 4 C Local 0 0 Data 4 C BOOL hole_position A REAL 6 6 machine on BODL H north tank tanks 0 1 tanks 0 1 TANK north_tank_drain BOOL 42360 The C indicates that the tag is at the controller scope Publication 1756 PM001C EN P June 2001 6 2 Assign Aliases A common use of alias tags is to program logic before wiring diagrams are available 1 For each I O device create a tag with a name that describes the device such as conveyor for the conveyor motor 2 Program your logic using the descriptive tag names You can even test your logic without connecting to the I O 3 Later when wiring diagrams are available add the I O modules to the I O configuration of the controller 4 Finally convert the descriptive tags to aliases for their respective I O points or channels The following logic was initially programmed using descriptive tag names such as stop and conveyor on Later the tags were converted to aliases for the corresponding I O devices stop is an alias for Local 211 Data 1 WM stop start the stop button on the operator sates ene ca SUR ep eae pan
110. he SINT or INT data type If you create a user defined data type to store those values then use the corresponding SINT or INT data type Glossary 39 If you include members that represent I O devices you must use ladder logic to copy the data between the members in the structure and the corresponding I O tags Refer to Buffer I O on page 8 1 When you use the BOOL SINT or INT data types place members that use the same data type in sequence more efficient less efficient BOOL BOOL BOOL DINT BOOL BOOL DINT DINT DINT BOOL You can use single dimension arrays You can create edit and delete user defined data types only when programming offline If you modify a user defined data type and change its size the existing values of any tags that use the data type are set to zero 0 To copy data to a structure use the COP instruction See the Logix5000 Controllers General Instruction Set Reference Manual publication 1756 RMO003 See structure Publication 1756 PM001C EN P June 2001 Glossary 40 W Publication 1756 PM001C EN P June 2001 watchdog Specifies how long a task can run before triggering a major fault Each task has a watchdog timer that monitors the execution of the task A watchdog time can range from 1 ms to 2 000 000 ms 2000 seconds The default is 500 ms The watchdog timer begins to time when the task is initiated and stops
111. he load the controller automatically goes to the mode that you select from the Load Mode drop down list step 7 e You can always use RSLogix 5000 software to load the project whenever you turn on or cycle On Power Up the chassis power whenever there is no project in On Corrupt Memory the controller and you turn on or cycle the chassis power only through RSLogix 5000 User Initiated software Publication 1756 PM001C EN P June 2001 Store and Load a Project Using Nonvolatile Memory 19 5 7 In step 6 which load image option did you select If Then On Power Up Select the mode that you want the controller to go to after a load On Corrupt Memory e remote program e remote run To go to this mode after a load turn the keyswitch of the controller to the REM position User Initiated Go to step 8 8 Type a note that describes the project that you are storing if desired 9 Choose Store A dialog box asks you to confirm the store 10 To store the project choose Yes During the store the following events occur On the front of the controller the OK LED displays the following sequence flashing green red green RSLogix 5000 software goes offline A dialog box tells you that the store is in progress 11 Choose OK When the store is finished you remain offline If you want to be online you must manually go online Publication 1756 PM001C EN P June 2001 19 6 Store and Lo
112. hen you force a value You can force all I O data except for configuration data e If the tag is an array or structure such as an I O tag force a BOOL SINT INT DINT or REAL element or member e If the data value is a SINT INT or DINT you can force the entire value or you can force individual bits within the value Individual bits can have a force status of no force force on force off You can also force an alias to an I O structure member produced tag or consumed tag An alias tag shares the same data value as its base tag so forcing an alias tag also forces the associated base tag Removing a force from an alias tag removes the force from the associated base tag ATTENTION If forces are enabled and anything is forced keep personnel away from the machine area Forcing can cause unexpected machine motion that could injure personnel Publication 1756 PM001C EN P June 2001 14 2 Force Values Enter a Force Publication 1756 PM001C EN P June 2001 TANT Forcing increases logic execution time The more values you force the longer it takes to execute the logic TANT Forces are held by the controller and not by the programming workstation Forces remain even if the programming workstation is disconnected Use the Monitor Tags tab of the Tags window or use the Ladder window to enter forces Enter Forces from the Tags Window From the Tags window Monitor Tags tab yo
113. ices e g other controllers can access Power Up Handler a Tasks 3 48 MainT ask MainProgram I Program Tags 48 amp E MainRoutine Unscheduled Programs Trends Data Types Ca User Defined Predefined Ca Module Defined 1 0 Configuration 42195 tags that only the routines in MainProgram can access C3 You can have multiple tags with the same name Fach tag must have a different scope For example one of the tags can be a controller tag and the other tags can be program tags for different programs Or each tag can be a program tag for a different program e Within a program you cannot reference a controller tag if a tag of the same name exists as a program tag for that program See controller scope program scope SINT A data type that stores an 8 bit 1 byte signed integer value 128 to 127 Minimize your use of this data type Typically instructions convert SINT or INT values to an optimal data type usually a DINT or REAL value during execution Because this requires additional time and memory minimize the use of the SINT and INT data types Publication 1756 PM001C EN P June 2001 Glossary 30 store To copy a project to the nonvolatile memory of the controller This overwrites any project that is currently in the nonvolatile memory See load nonvolatile memory string A group of data types that store ASCII characters
114. intable character text box type the hexadecimal characters such ASCII code for the first as 1 or A type the character character B In the Termination Character 2 text box type FF two termination In the Termination Character 1 and 2 characters text boxes type the hexadecimal ASCII code for each character Publication 1756 PM001C EN P June 2001 12 6 Communicate with an ASCII Device Controller Properties Ascii_examples OI x Major Faults Minor Faults Date Time Advanced File General Serial Port System Protocol User Protocol Protocol Buffer Size Bytes Termination Character 1 LEN 2 sem Append Character 1 CS P n c xON OFF f Echo Mode m Delete Mode Ignore C CRT C Printer 42252 4 If you are using the AWA instruction type the character s to append to the data For the ASCII code of a character refer to the back cover of this manual To append Then Notes one character A Inthe Append Character 1 text For printable box type the hexadecimal characters such ASCII code for the first as 1 or A type the character character B In the Append Character 2 text box type FF two characters In the Append Character 1 and 2 text boxes type the hexadecimal ASCII code for each character 5 If the ASCII device is configured for XON XOFF flow control select the XON XOFF check box 6 If the ASCII device is a CRT or is pre configured
115. ite Channel Source Move Source y SerialPort Control SerialPort Control Length Characters Sent 29 30 28 42236d Enter the input condition s that determines when the characters are to be sent You can use any type of input instruction The instruction must change from false to true each time the characters are to be sent Enter O Enter the tag name that stores the ASCII characters Define the data type as a string Enter a tag name for the AWT instruction and define the data type as SERIAL PORT CONTROL Enter the LEN member of the Source tag The tag from step 27 Enter the LEN member of the AWT instruction The tag from step 28 Publication 1756 PM001C EN P June 2001 12 20 Communicate with an ASCII Device Because the number of characters in MV msg varies the rung first moves the length of MV msg MV_msg LEN to the length of the AWT instruction WV_write LEN In MV msg the 76 counts as one character It is the hex code for the Ctrl V EXAMPLE When MV update is on the AWT instruction sends the characters in MV msg character i MV update MOV AWT Move ASCII Write Source MV msg LEN Channel 0 10 Source MV msg ND Dest MV_write LEN 161365 8 1 r 10 SerialPort Control MV_write R String Length 10 Characters Sent 10 42229 31 Go to Enter ASCII Characters on page 12 21 Publication 1756 PM001C EN P June 2001 Communicate
116. kwell Automation is prohibited Throughout this manual we use notes to make you aware of safety considerations Identifies information lt racti r ATTENTION de ifies information about practices o 7 circumstances that can lead to personal injury or death property damage or economic loss Attention statements help you to identify a hazard avoid a hazard recognize the consequences IMPORTANT Identifies information that is critical for successful application and understanding of the product Allen Bradley ControlLogix DH Logix5000 PLC 5 RSLogix 5000 RSLinx RSNetWorx and SLC are trademarks of Rockwell Automation ControlNet is a trademark of ControlNet International Ltd Ethernet is a trademark of Digital Equipment Corporation Intel and Xerox Corporation Introduction Updated Information Summary of Changes This release of this document contains new and updated information To find new and updated information look for change bars as shown next to this paragraph The document contains the following changes This new or updated information Starts on page Plan Your Tags 3 1 Get and Set System Data 5 4 Communicate with an ASCII Device 12 1 Process ASCII Characters 13 1 Monitor Minor Faults 17 1 Store and Load a Project Using Nonvolatile 19 1 Memory Major Fault Codes A 1 Minor Fault Codes A 3 IEC61131 3 Compliance B 1 Glossary terms Gl
117. lf Duplex Select the Continuous Carrier check box all modems in the system Half Duplex Clear the Continuous Carrier are half duplex check box default 8 Type the amount of delay 20 ms units between the time that the RTS signal turns on high and the time that data is sent For example a value of 4 produces an 80 ms delay 9 Type the amount of delay 20 ms units between the time that the last character is sent and the time that the RTS signal turns off low 10 Publication 1756 PM001C EN P June 2001 Click Apply Communicate with an ASCII Device 12 5 Configure the User Protocol 1 Click the User Protocol tab Controller Properties Ascii_examples OI x Major Faults MinorFauts Date Time Advanced File General Serial Port System Protocol User Protocol Protocol Bytes Termination Character 1 s 2 srF j srF Append Character 1 r 2 Buffer Size XON OFF Echo Mode m Delete Mode Ignore CAT C Printer 42252 2 Select or type a number that is greater than or equal to the greatest number of characters in a transmission Twice the number of characters is a good guideline 3 If you are using ABL or ARL instructions type the characters that mark the end of the data For the ASCII code of a character refer to the back cover of this manual If the device Then Notes sends one termination A In the Termination Character 1 For pr
118. me The total time required for the execution of a single program Execution time includes only the time used by that single program and excludes any time shared used by programs in other tasks performing other operations When online use the Program Properties dialog box to view the maximum scan time and the last scan time in us for the current program These values are execution times for the program and do not include any time spent waiting for other programs or higher priority tasks See elapsed time exponential Real values displayed and entered in scientific or exponential format The number is always displayed with one digit to the left of the decimal point followed by the decimal portion and then by an exponent See style Publication 1756 PM001C EN P June 2001 Glossary Publication 1756 PM001C EN P June 2001 12 faulted mode The controller generated a major fault could not clear the fault and has shut down See major fault float Real values displayed and entered in floating point format The number of digits to the left of the decimal point varies according to the magnitude of the number See style hexadecimal Integer values displayed and entered in base 16 each digit represents four bits Prefixed with 164 Padded out to length of the boolean or integer 1 8 16 or 32 bits When displayed every group of four digits is separated by an underscore for legibility See binary decimal
119. member name x is the location of the element in the first dimension y is the location of the element in the second dimension z is the location of the element in the third dimension For a structure within a structure add an additional member name Publication 1756 PM001C EN P June 2001 4 8 Program Routines Publication 1756 PM001C EN P June 2001 EU To access The tag name looks like this machine_on tag machine_on Li Ie bit number 1 of the one_shots tag one_shots 1 mE BE DN member bit of the running_seconds timer running_seconds DN ah Te mis mix member of the north tanktag north tank mix E HER element 2 in the recipe array and element 1 1 in the tanks array COP Copy File Source recipe 2 Dest tanks 1 1 Length 1 element 2 in the preset array within the north_tank tag CLR Clear Dest north tank preset 2 0 part advance member of element 1 in the drill array Oh orale t_advance J E L L 42357 Program Routines 4 9 If you want to To assign an immediate value tag wire connector label or similar item to an instruction 1 Type or select the value or name of the item e g tag name wire connector name label name For a Do this e specify an ladder instruction A Click the symbol immediate value B Type the value or type the
120. multiple outputs on a rung When running_seconds DN turns on running bours counts up by one and running seconds resets running_seconds DN CTU running_seconds iE Count Up CUS RES Counter running hours lt DN Preset 500 Accum 0 When machine on turns on turns on drill 1 on When both machine on and drill 1 part advance are on turns on conveyor on rt advance conveyor on E I d machine on drill 1 on drill 1 p RE i E j N 42362 Publication 1756 PM001C EN P June 2001 Glossary 14 Publication 1756 PM001C EN P June 2001 INT A data type that stores a 16 bit 2 byte integer value 32 768 to 32 767 Minimize your use of this data type Typically instructions convert SINT or INT values to an optimal data type usually a DINT or REAL value during execution Because this requires additional time and memory minimize the use of the SINT and INT data types interface module IFM A pre wired I O field wiring arm listen only connection An I O connection where another controller owns provides the configuration data for the I O module A controller using a listen only connection does not write configuration data and can only maintain a connection to the I O module when the owner controller is actively controlling the I O module See owner controller load To copy a project from nonvolatile memory to the user memory RAM of the controller This overwrit
121. nd Ex Task executes Task is interrupted suspended 1ms 1ms System overhead mH 9 ms 9 ms 5 10 15 20 25 elapsed time ms The interruption of a periodic task increases the elapsed time clock time between the execution of system overhead 1 ms 1 ms 1 ms 1 ms periodic task H E 13 mE i 1 ms 1 ms System overhead B B 9 ms of continuous task time 9 ms of continuous task time continuous task e 1 IEEE Et EQ sl B 5 10 15 20 25 elapsed time ms If you increase the time slice to 20 96 the system overhead interrupts the continuous task every 4 ms of continuous task time 1ms 1ms 1ms 1ms 1ms System overhead E a e m 4 ms 4 ms 4 ms 4 ms 4 ms continuous task NENNEN i i HI 5 10 15 20 25 elapsed time ms Publication 1756 PM001C EN P June 2001 Glossary 35 If you increase the time slice to 50 96 the system overhead interrupts the continuous task every 1 ms of continuous task time 1ms System overhead n ist B n B E n ig n i ai 1ms continuous task T EN p ui iil E E B 5 10 15 20 25 elapsed time ms If the controller only contains a periodic task s the system overhead timeslice value has no effect System overhead runs whenever a periodic task is not running periodic task S REX elapsed time ms To change the system overhead time slice 1 Open the RSLogix 5000 project 2 In the controller organizer right click the Controller name o
122. nd then index to the next element log error codes Publication 1756 PM001C EN P June 2001 7 2 Assign an Indirect Address The following example loads a series of preset values into a timer one value array element at a time EXAMPLE Step through an array The timer_presets array stores a series of preset values for the timer in the next rung The north_tank step tag points to which element of the array to use For example when north_tank step equals 0 the instruction loads timer_presets 0 into the timer 60 000 ms MOV Mov Source timer presets north tank step 60000 Dest north tank step time PRE 60000 north tank step time DN TON 3 E Timer On Delay Timer north tank step time Preset 60000 Accum 0 When nortb tank step time is done the rung increments north_tank step to the next number and that element of the timer presets array loads into the timer north_tank step_time DN dt Add Source A 1 ADD Source B north tank step 0 Dest north tank step 0 When north_tank step exceeds the size of the array the rung resets the tag to start at the first element in the array The array contains elements 0 to 3 EQU MOV Equal Mov Source A north tank step Source 0 0 Source B 4 Dest north tank step 0 42358 Publication 1756 PM001C EN P June 2001 Assign an Indirect Address 7 3
123. nfigure the Serial Port Se ue tay rU RUE E SR 12 3 Configure the User Protocol das sit Ret Pee be ORG P RE 12 5 Creare String Data INDES od ey AGORA Dd X eon SER 12 8 Read Characters from the Device 12 9 Send Characters to the Device 12 14 Enter ASCII Characters Les ss euo ee wea o eo qe Sua 12 21 Process ASCII Characters Force Values Develop a Fault Routine Create a User Defined Major Fault Monitor Minor Faults Develop a Power Up Routine Store and Load a Project Using Nonvolatile Memory Table of Contents iii Chapter 13 When to Use this Procedure 43 344444 su ee eR GS 13 1 How to Use this Procedure s uj oh uw wai iow t Sc 13 1 Extract a Part of a Bat Gode yc oes c C etd 13 2 Check the Bar Code Characters 23 d pere E Ent 13 4 Converta Valus Soeur ed are Qoid cet oed ed RR 13 6 Decode an ASCI Messages vu ves CIR Oe C RU aes 13 8 Bald quero sme RPXPITESLANPINE RSS ERERITESS 13 12 Chapter 14 When to Force a Value sas 234 ne ip SES MERE Le 14 1 Enter a FOrC as o sx be hb p EUR ER tu TANE RUN 14 2 Enter Forces from the Tags Window 14 2 Enter Forces from Ladder Logic 14 4 Enable POfGeSau y ure eut epa MAINS De ARR 14 5 Disable FORES Maton carta Ut Woes sut a es 14 6 REMOVE Forc s erareco tee peck the NET oe eee Ge 14 6 MONITOR FORGES uoti dora qu Beate ede e d OE MER RY 14 7 Chapter 15 When to Use This Procedure v o sso Pda pea
124. ng output devices drill 1 forward 1791 8AC O Data 0 0 Au a drill 1 retract 1791 8AC O Data 0 1 Asc at 42369 Publication 1756 PM001C EN P June 2001 Buffer 1 0 8 3 The following example uses the CPS instruction to copy an array of data that represent the input devices of a DeviceNet network EXAMPLE UC Local 0 I Data stores the input data for the DeviceNet network that is connected to the 1756 DNB module in slot 0 To synchronize the inputs with the application the CPS instruction copies the input data to input_buffer While the CPS instruction copies the data no I O updates can change the data As the application executes it uses for its inputs the input data in input_buffer CPS Synchronous Copy File Source Local 0 l Data 0 Dest input_buffer 0 Length 20 42578 Publication 1756 PM001C EN P June 2001 8 4 Buffer 1 0 Notes Publication 1756 PM001C EN P June 2001 Test a Project Chapter 9 Test a Project To test a project complete these actions Configure a Communication Driver Download a Project to the Controller Select a Mode for the Controller Correct Major Faults e Save Your Online Changes In addition you may perform these actions Use program control instructions to isolate logic execution to specific routines or rungs See Logix5000 Controllers General Instruction Set Reference Manual publication 1756 RM003
125. o enable or disable forces after the download completes When forces are enabled a gt appears next to the forced value in the ladder editor MainProgram cst example Add 5 5 seconds 5500000 microseconds to the buffered timestamp value S C CPT Compute Dest value_CST 0 Expression value CST 0 5500000 If the previous rung caused the carry bit to be set add 1 to the upper 32 bits of the timerstamp value Compute Dest value CST 1 Expression value_CST 1 1 Copy the new timestamp buffered value 5 5 seconds to trigger an output MOV MOV Local5 0 Data Move Move Source value CST 0 Source value CST 1 Dest Local5 0 CSTTimestamp 0 Dest Local5 0 CSTTimestamp 1 De del PA MainRoutine A cst example Publication 1756 PM001C EN P June 2001 14 6 Force Values Disable Forces Remove Forces If you want to remove a force from a whole SINT INT DINT or REAL value You can disable forces without removing forces from individual values or from the controller By disabling forces the project can execute as programmed Forces are still entered but they are not executed c RSLogix 5000 quick start File Edi View Search Logic Communications Tools W isi aj le LI tine gt Forces Instaled soe Forces Enabled z EC Driver AB_DF1 1
126. ontroller loaded the project from its nonvolatile memory Publication 1756 PM001C EN P June 2001 19 10 Store and Load a Project Using Nonvolatile Memory Clear Nonvolatile Memory Typically you do not have to clear the nonvolatile memory of the controller When you store a project you overwrite the complete contents of the nonvolatile memory If you want to remove a project from the nonvolatile memory complete the following steps 1 Go online with the controller Rem Prog jj M Not Running REN No Forces gt D Controller OK EN No Edits EN Battery OK W 1 0 OK Redundancy w9 H 2 42627 2 On the Online toolbar click the controller properties button 3 Click the Nonvolatile Memory tab General Serial Port System Protocol User Protocol Maior Faults Minor Faults Date Time Advanced File Nonvolatile Memory m Image in Nonvolatile Memory Name name_of_controller Type 1756 L55 4 ControlLogix 5555 Controller Revision 8 16 4 _ Load Image User Initiated Load Mode Remote Program 42865 4 Is the Load Image option set to User Initiated If Then No Go to step 5 Yes Go to step 11 5 Choose Load Store 6 In the Load Image drop down list select User Initiated Publication 1756 PMO001 C EN P June 2001 7 10 11 12 13 14 15 Store and Load a Project Using Nonvolatile Memory 19 11 Choose lt Store A dialog b
127. optional The specification lists a limited set of instructions that if implemented must conform to the stated execution and visual representation IEC61131 3 however does not limit the instructions set to those listed within the specification Each PLC vendor is free to implement additional functionality in the form of instructions over and above those listed by the specification Examples of such extended instructions are those needed to perform diagnostics PID loop control motion control and data file manipulation Because extended instructions are not defined by the IEC61131 3 specification there is no guarantee that the implementation between different PLC vendors will be compatible Thus utilization of these instructions may preclude the movement of logic between vendors Logix5000 controllers and RSLogix5000 provide a suite of instructions that execute as defined by the IEC61131 3 specification The physical representation of these instructions maintain their look and feel with existing systems so as to reduce the training cost associated with working with the environment In addition to the IEC61131 3 compliant instructions a full range of instructions from existing products have been brought forward into the environment so that no functionality is lost One of the goals of end users creating programs in an IEC61131 3 compliant environment is the movement or portability of programs between controllers developed by different vendors Thi
128. or the tag optional C Inthe Data Type box type the data type for the tag If the tag is Then type not an array file data_type one dimension array data_type x two dimension array data_type x y three dimension array data type x y z where data type isthe type of data that the tag or array stores See Table 3 B on page 3 1 x isthe number of elements in the first dimension y isthe number of elements in the second dimension z isthe number of elements in the third dimension D From the Scope list select the scope of the tag If you will use the tag Then select in more than one program within the project name of controller controller as a producer or consumer in a message in only one program within the project program that will use the tag E Choose OK Verify the Routine As you program your routine s periodically verify your work 1 In the top most toolbar of the RSLogix 5000 window click I 2 If any errors are listed at the bottom of the window a To go to the first error or warning press the F4 key b Correct the error according to the description in the Results window c Go to step 1 3 To close the Results window press the Alt 7 keys Publication 1756 PM001C EN P June 2001 Chapter 5 Access System Values Monitor Status Flags The controller supports status keywords you can use in your logic to monitor specific events The status keywo
129. ory replace the memory board 7 42 Load from nonvolatile memory failed because Update the controller firmware to the same revision level as the the firmware revision of the project in project that is in nonvolatile memory nonvolatile memory does not match the firmware revision of the controller 8 1 Attempted to place controller in Run mode with Wait for the download to complete and clear fault keyswitch during download 1 Actual position has exceeded positive Move axis in negative direction until position is within overtravel overtravel limit limit and then execute Motion Axis Fault Reset 2 Actual position has exceeded negative Move axis in positive direction until position is within overtravel overtravel limit limit and then execute Motion Axis Fault Reset 3 Actual position has exceeded position error Move the position within tolerance and then execute Motion Axis tolerance Fault Reset 4 Encoder channel A B or Z connection is broken Reconnect the encoder channel then execute Motion Axis Fault Reset 5 Encoder noise event detected or the encoder Fix encoder cabling then execute Motion Axis Fault Reset signals are not in quadrature 6 Drive Fault input was activated Clear Drive Fault then execute Motion Axis Fault Reset 7 Synchronous connection incurred a failure First execute Motion Axis Fault Reset If that doesn t work pull servo module out and plug back in If all else fails replace servo module 8 Servo module ha
130. ossary ASCII Character Codes back cover Publication 1756 PM001C EN P June 2001 Summary of Changes 2 Notes Publication 1756 PM001C EN P June 2001 Preface Purpose of this Manual This manual guides the development of projects for Logix5000 controllers It provides step by step procedures on how to perform the following tasks which are common to all Logix5000 controllers Manage Project Files Organize Your Logic Organize Tags Program Routines e Test a Project Handle Faults The term Logix5000 controller refers to any controller that is based on the Logix operating system such as CompactLogix controllers ControlLogix controllers e FlexLogix controllers e SoftLogix controllers This manual works together with user manuals for your specific type of controller The user manuals cover tasks such as Place and configure I O e Communicate with devices over various networks Maintain the battery Who Should Use this This manual is intended for those individuals who program Manual applications that use Logix5000 controllers such as software engineers control engineers application engineers e instrumentation technicians Publication 1756 PM001C EN P June 2001 Preface 2 When to Use this Manual How to Use this Manual Use this manual when you perform these actions develop the basic code for your application modify an existing application perform isolated test
131. out the instruction minimizing the use of the SINT or INT data types In other words use all DINT tags or all REAL tags along with immediate values in your instructions Publication 1756 PM001C EN P June 2001 Glossary 22 Conversion larger integer to smaller integer The following table summarizes how the controller converts data between data types Result The controller truncates the upper portion of the larger integer and generates an overflow For example Decimal Binary DINT 65 665 0000 0000 0000 0001 0000 0000 1000 0001 INT 129 0000 0000 1000 0001 SINT 127 1000 0001 SINT or INT to REAL No data precision is lost DINT to REAL Data precision could be lost Both data types store data in 32 bits but the REAL type uses some of its 32 bits to store the exponent value If precision is lost the controller takes it from the least significant portion of the DINT REAL to integer Publication 1756 PM001C EN P June 2001 The controller rounds the fractional part and truncates the upper portion of the non fractional part If data is lost the controller sets the overflow status flag Numbers round as follows e Numbers other than x5 round to the nearest number e X5 rounds to the nearest even number For example REAL source DINT result 2 5 2 1 6 2 1 5 2 1 4 1 1 4 1 1 5 2 1 6 2 2 5 2 owner controller The controller that cr
132. ovides access to memory through the creation of named variables IEC61131 3 names for variables consist of a minimum of six characters RSLogix5000 programming software supports a minimum of 1 character starting with an underscore or an alpha character A Z followed by one or more characters consisting of an underscore alpha character A Z or a number 0 9 Optionally lower case alpha characters a z can be supported as long as they are case insensitive A a B b C c Logix5000 controllers provide full compliance with this definition support the lower case option and extend the name to support up to 40 character names IEC61131 3 Compliance B 3 I Programming Languages Data variables in IEC61131 3 may be defined such that they are accessible to all programs within a resource or controller or limited access is provided only to the functions or routines within a single program To pass data between multiple resources or controllers access paths may be configured to define the location of the data within a system Logix5000 controllers provide compliance by providing program scoped controller scoped data and permits the configuration of access paths using produced consumed data The memory interpretation of a variable within IEC61131 3 is defined through the use of either an elementary data type or an optional derived data type that is created from a group of multiple data types Logix5000 controllers support the
133. ox asks you to confirm the store To store the project choose Yes A dialog box tells you that the store is in progress Choose OK Wait until the OK LED on the front of the controller is steady green This indicates that the store is finished Disconnect the battery from the controller Cycle the power to the chassis Re connect the battery to the controller Go online with the controller The Connected To Go Online dialog box opens Click the Nonvolatile Memory tab General Serial Port System Protocol User Protocol l Maior Faults Minor Faults Image in Nonvolatile Memory Name name of controller Type 1756 L55 ControlLogix 5555 Controller 16 Date Time Advanced Fie Nonvolatile Memory 42865 Choose Load Store Publication 1756 PM001C EN P June 2001 19 12 Store and Load a Project Using Nonvolatile Memory 42874 17 Choose Store A dialog box asks you to confirm the store 18 To store the project choose Yes During the store the following events occur On the front of the controller the OK LED displays the following sequence flashing green gt red gt green RSLogix 5000 software goes offline A dialog box tells you that the store is in progress 19 Choose OK When the store is finished you remain offline If you want to be online you must manually go online Publication 1756 PM001C EN P June 2001 Fault Codes When to Use This A
134. p Handler ES Tasks Bg MainT ask MainProgram A Program Tags To open a routine double click the routine e E MainRoutine IH Routine2 If a routine is grayed out you cannot open the routine M Ba Routine3 Bu Routine4 2 Unscheduled Programs C3 Trends 6 Data Types C User Defined To open a folder and display its contents expand do one of the following m Lip Predefined e Double click the folder C8 Module Defined 1 0 Configuration e Select the folder and press the key e Click the sign 42581 Publication 1756 PM001C EN P June 2001 4 2 Program Routines Is the icon for the routine greyed out If the icon is Then not greyed out Double click the routine greyed out You cannot open program or edit the routine To determine the reason 1 Double click the routine 2 At the bottom of the RSLogix 5000 window what message does the status line display If Then Failed to open the routine The function block editor is not installed To install the function editor not installed block editor order the following catalog number of RSLogix 5000 software e 9324 RLD700 Source not available The source of the routine is unavailable You can e run the routine e display the properties of the routine e identify cross references to logic in the routine You cannot e open display the routine edit the routine change
135. pends the carriage return CR send msg DTOS INSERT DTOS 4 F DINT to String Insert String DINT to String Source msg num Source msg new Source msg node 5e 144 1 Dest msg num ascii Source B msg num ascii Dest msg node ascii 5 y e 4 Start 2 Dest msg_temp 145 CONCAT String Concatenate Source msg temp 145 Source B msg node ascii Dest 42813 Publication 1756 PM001C EN P June 2001 13 16 Process ASCII Characters Notes Publication 1756 PM001C EN P June 2001 When to Force a Value If you want to override a value from the produced tag of another controller Chapter 14 Force Values Use a force to override an input or output value Then force the Notes consumed tag Forcing an input or consumed tag e overrides the value regardless of the value of the a value from an input device physical device or produced tag e does not affect the value received by other controllers monitoring that input or produced tag input data bit or value your logic and specify the value of a produced tag produced tag e Forcing an output or produced tag overrides the logic for the physical device or other controller s your logic and specify the state an output device e Other controllers monitoring that output module in a output data bit or value listen only capacity will also see the forced value W
136. ppendix Appendix A Use this appendix to interpret Major Fault Codes e Minor Fault Codes Major Fault Codes Use the following table to determine the cause and corrective action for a major fault The type and code correspond to the type and code displayed in these locations Controller Properties dialog box Major Faults tab PROGRAM object MAJORFAULTRECORD attribute Table A 1 Major Fault Types and Codes Type Code Cause Recovery Method 1 1 The controller powered on in Run mode Execute the power loss handler 3 16 A required I O module connection failed Check that the 1 0 module is in the chassis Check electronic keying requirements View the controller properties Major Fault tab and the module properties Connection tab for more information about the fault 3 20 Possible problem with the ControlBus chassis Not recoverable replace the chassis 3 23 At least one required connection was not Wait for the controller 1 0 light to turn green before changing to established before going to Run mode Run mode 4 16 Unknown instruction encountered Remove the unknown instruction This probably happened due to a program conversion process 4 20 Array subscript too big control structure POS Adjust the value to be within the valid range Don t exceed the or LEN is invalid array size or go beyond dimensions defined 4 21 Control structure LEN or POS 0 Adjust the value so it is 0
137. r Buffer Line Channel 0 SerialPort Control MV line Character Count 0 MV line EN When the ABL instruction finds the carriage return MV line FD is set the controller removes the characters from the buffer up to and including the carriage return and places them in the MV msg tag i MV line FD ARL ASCII Read Line Channel 0 Destination MV msg SerialPort Control MV read String Length 12 Characters Read 0 42226 24 Do you want to send data to the device I If Then yes Go to Send Characters to the Device on page 12 14 no Stop You are done with this procedure To use the data go to Process ASCII Characters on page 13 1 Publication 1756 PM001C EN P June 2001 12 14 Communicate with an ASCII Device Send Characters to the Device Publication 1756 PM001C EN P June 2001 1 If you Determine where to start And you Then always send the same number want to automatically append one or two Go to step 2 of characters characters to the end of the data do not want to append characters Go to step 9 send different numbers of want to automatically append one or two Go to step 16 characters characters to the end of the data do not want to append characters Go to step 24 2 Enter the following rung 5 4 BM ASCII Write Append Channel Source N gt ND R gt SerialPort Control SerialPort Control Length Cha
138. racters Sent 42236a Enter the input condition s that determines when the characters are to be sent You can use any type of input instruction The instruction must change from false to true each time the characters are to be sent Enter 0 Enter the tag name that stores the ASCII characters Define the data type as a string Enter a tag name for the AWA instruction and define the data type as SERIAL_PORT_CONTROL Enter the number of characters to send Omit the characters that are appended by the instruction Communicate with an ASCII Device 12 15 sends five characters from the string 1 tag to a MessageView terminal e The 74 counts as one character It is the hex code for the Ctrl T character The instruction also sends appends the characters defined in the user protocol In this example the AWA instruction sends a carriage return 0D which marks the end EXAMPLE When the temperature exceeds the high limit Gemp bigb is on the AWA instruction of the message i temp_high AWA ASCII Write Append EN Channel 0 Source string 1 DND 1425 1 SerialPort Control temp_high_write String Length 5 Characters Sent 6 42229 8 Go to Enter ASCII Characters on page 12 21 Publication 1756 PM001C EN P June 2001 12 16 Communicate with an ASCII Device 9 Enter the following rung 12 11 10 ASCII Write Channel Source ra Seri
139. rds are not case sensitive Because the status flags can change so quickly RSLogix 5000 software does not display the status of the flags I e Even when a status flag is set an instruction that references that flag is not highlighted You cannot define a tag alias to a keyword You can use these key words To determine if Use the value you are storing cannot fit into the destination because it is S V either e greater than the maximum value for the destination e less than the minimum value for the destination Important Each time S V goes from cleared to set it generates a minor fault type 4 code 4 the instruction s destination value is 0 SZ the instruction s destination value is negative S N an arithmetic operation causes a carry or borrow that tries to use bits S C that are outside of the data type For example e adding 3 9 causes a carry of 1 e subtracting 25 18 causes a borrow of 10 this is the first normal scan of the routines in the current program S FS at least one minor fault has been generated S MINOR e he controller sets this bit when a minor fault occurs due to program execution e he controller does not set this bit for minor faults that are not related to program execution such as battery low Publication 1756 PM001C EN P June 2001 5 2 Access System Values Get and Set System Data Publication 1756 PM001C EN P June 2001 The controller stores system da
140. reate String Data Types Read Characters from the Device Send Characters to the Device Publication 1756 PM001C EN P June 2001 12 2 Communicate with an ASCII Device Connect the ASCII Device 1 For the serial port of the ASCII device determine which pins send signals and which pins receive signals 2 Connect sending pins to corresponding receiving pins and attach jumpers If the communications Then wire the connectors as follows handshake ASCII Device Controller 1 CD 1 CD 2 RDX 2 RDX 3 TxD 3 TXD 4 DTR gt SS 4 DTR COMMON COMMON 6 DSR 6 DSR 7 RTS 7 RTS 8 CTS 8 CTS 9 9 42231 do not handshake ASCII Device Controller 1 CD 1 CD 2 RDX 2 RDX 3 TxD 7 3 TxD __ 4 DIR 4 DTR COMMON COMMON 6 DSR 6 DSR 7 RTS 7 RTS 8 CTS 8 CTS q 9 9 42232 3 Attach the cable shield to both connectors 4 Connect the cable to the controller and the ASCII device Publication 1756 PM001C EN P June 2001 Communicate with an ASCII Device 12 3 l Configure the Serial Port 1 Determine the following communication settings for the ASCII device a baud rate b data bits c parity d stop bits 2 Open the RSLogix 5000 project Offline J E RUN No Forces E M OK a
141. riggered the scheduled programs within the task execute to completion from first to last When a task executes a program the main routine of the program executes first The main routine can in turn execute subroutines using the JSR instruction The Unscheduled Programs folder contains programs that aren t assigned to a task If the logic in the program produces a major fault execution jumps to a configured fault routine for the program The routines within a program can access the following tags program tags of the program controller tags Routines cannot access the program tags of other programs See routine task program scope Data accessible only within the current program Each program contains a collection of tags that can only be referenced by the routines and alias tags in that program See controller scope project file The file on your workstation Cor server that stores the logic configuration data and documentation for a controller The project file has an ACD extension When you create a project file the file name is the name of the controller The controller name is independent of the project file name If you save a current project file as another name the controller name is unchanged If the name of the controller is different than the name of the project file the title bar of the RSLogix 5000 software displays both names See application Publication 1756 PM
142. ring the contents of the controller into a project file on the workstation If you do not have the project file for a controller you can upload from the controller and create a project file However not everything that is stored in a project file is available from the controller If you upload from a controller the new project file will not contain rung comments descriptions for tags tasks programs routines modules or user defined structures chains of aliases aliases pointing to other aliases Alias chains are not completely reconstructed from the controller If there are several possible names for a data item the firmware and software choose a best fit alias that may not reflect how the alias was specified in the original project See download user defined data type You can also create your own structures called a user defined data type also commonly referred to as a user defined structure A user defined data type groups different types of data into a single named entity Within a user defined data type you define the members Like tags members have a name and data type You can include arrays and structures Once you create a user defined data type you can create one or more tags using that data type Minimize your use of the following data type because they typically increase the memory requirements and execution time of your logic INT SINT For example some system values use t
143. rogrammable controllers These specifications are intended to promote international unification of equipment and programming languages for use in the controls industry These standards provide the foundation for Logix5000 controllers and RSLogix 5000 programming software The IEC programmable controller specification is broken down into five separate parts each focusing on a different aspect of the control system Part 1 General Information Part 2 Equipment and Requirements Test e Part 3 Programming Languages Part 4 User Guidelines Part 5 Messaging Service Specification The controls industry as a whole has focused on part 3 IEC61131 3 Programming Languages because it provides the cornerstone for implementing the other standards and provides the most significant end user benefit by reducing training cost Because of this only IEC61131 3 is addressed here Publication 1756 PM001C EN P June 2001 B 2 1EC61131 3 Compliance i Operating System Data Definitions Publication 1756 PM001C EN P June 2001 The IEC61131 3 programming language specification addresses numerous aspects of programmable controller including the operating system execution data definitions programming languages and instruction set Components of the IEC61131 3 specification are categorized as required by the specification optional or extensions By so doing the IEC61131 3 specification provides a minimum set of functionality that can
144. ry the order of the strings determines which one is greater Steps ASCII Characters Hex Codes 1ab 31 61 62 X NEN 31862 e r 4 S e A 4 S a AB 41 42 e t d B 42 r a 61 Y ab 61 62 1 Enter a rung and a compare instruction To see if the string is AB B a gt B Enter this instruction equal to specific characters EQU not equal to specific characters NEQ greater than specific characters GRT equal to or greater than specific characters GEO less than specific characters LES equal to or less than specific characters LEQ Publication 1756 PM001C EN P June 2001 Process ASCII Characters 13 5 Equal Source 4 42808 2 Enter the tag that stores the part of the bar code that you want to check The Destination from Extract a Part of a Bar Code step 6 3 Enter a tag name to store the characters that you want to test against Define the data type as a string 4 Double click value area of Source B Ex String Browser MV msg 5 Type the ASCII characters to test against and choose OK Position D Count 0 of 82 6 Enter the required output EXAMPLE When bag_flt_and_dest is equal to gate 1 xfer 1 turns on This routes the bag to the required gate EQU xfer 1 _ Equal Source bag flt and dest 5058 AMS Source B gate 1 5058 AMS 42808 7 Do you want
145. ry 19 1 store in nonvolatile memory 19 1 upload 9 4 project file create 1 1 R read ASCII characters 12 9 routine create 2 3 enter function block instructions 4 4 enter ladder instructions 4 3 languages 2 1 open 4 1 verify 4 10 RSLinx configure 9 1 run mode 9 3 rung enter 4 3 S save 1 2 see also store a project save as 1 2 send ASCII characters 12 14 serial cable wiring 12 2 configure port for ASCII 12 3 connect an ASCII device 12 2 shut down the controller 16 1 slot number 1 3 status Index 3 monitor 5 1 5 2 store a project 19 1 string compare characters 13 4 convert characters 13 6 create 13 12 data type 12 8 enter characters 12 21 extract characters 13 2 manipulate 13 1 organize data 12 8 read characters 12 9 write characters 12 14 string data type create 12 8 structure create 3 8 organize 3 1 subroutine create 2 3 suspend controller 16 1 symbol create 6 1 system data access 5 2 T tag assign 4 7 create 3 10 4 7 create alias 6 3 create using Excel 3 11 enter 4 7 force 14 1 organize 3 1 organize for message 10 11 produce and consume 10 1 produce large array 11 1 share with PLC 5C 10 6 10 7 10 9 string 12 8 task organize 2 2 test a fault routine 15 4 test mode 9 3 U upload 9 4 Publication 1756 PM001C EN P June 2001 4 Index user protocol routine 4 10 configure for ASCII 12 5 user defined data type W create 3 8 weight convert 13 6 V writ
146. s For other objects tasks programs modules etc you can use up to 128 characters dimension Specification of the size of an array Arrays can have as many as three dimensions See array DINT A data type that stores a 32 bit 4 byte signed integer value 2 147 483 648 to 2 147 483 647 In Logix5000 controllers use DINTS for integers Logix5000 controllers execute more efficiently and use less memory when working with 32 bit integers DINTs instead of 16 bit integers INTs or 8 bit integers SINTs Typically instructions convert SINT or INT values to an optimal data type usually a DINT or REAL value during execution Because this requires additional time and memory minimize the use of the SINT and INT data types Publication 1756 PM001C EN P June 2001 Glossary 10 Publication 1756 PM001C EN P June 2001 direct An I O connection where the controller establishes an individual connections with an I O module See rack optimized disable keying An electronic keying protection mode that requires no attributes of the physical module and the module configured in the software to match and still establishes a connection to the module See compatible module exact matcb download The process of transferring the contents of a project on the workstation into the controller See upload elapsed time The total time required for the execution of all operations configured within a single task
147. s 12 21 extract characters 13 2 manipulate characters 13 1 organize data 12 8 read characters 12 9 write characters 12 14 bar code extract characters 13 2 test characters 13 4 branch enter 4 3 buffer 1 0 8 1 C chassis size 1 3 clear major fault 9 4 15 1 minor fault 17 1 codes major fault A 1 minor fault A 3 communicate other controllers 10 1 compare Index ASCII characters 13 4 compliance tables B 5 configure driver 9 1 load from nonvolatile memory 19 1 serial port for ASCII 12 3 user protocol for ASCII 12 5 consume integers from PLC 5C 10 9 tag 10 1 controller change properties 1 3 download 9 2 mode 9 3 shut down 16 1 suspend 16 1 verify 2 5 ControlNet configure driver 9 1 produce and consume data 10 1 convert ASCII characters 13 6 create alias 6 3 array 3 10 driver 9 1 project file 1 1 routine 2 3 string 13 12 string data type 12 8 structure 3 8 subroutine 2 3 tag 3 10 4 7 tag using Excel 3 11 user defined data type 3 8 D data ASCII 12 8 definitions B 2 enter ASCII characters 12 21 force 14 1 produce and consume 10 1 data table 3 1 download 9 2 driver configure 9 1 Publication 1756 PM001C EN P June 2001 2 Index E enter address 4 7 ASCII characters 12 21 force 14 2 function block instruction 4 4 ladder instruction 4 3 Ethernet configure driver 9 1 produce and consume tags 10 1 extract ASCII characters 13 2 F fault clear
148. s and Codes Continued Type Code Cause Recovery Method 9 2 Poll list error Check for the following errors in the poll list A problem was detected with the DF1 master s poll list e total number of stations is greater than the such as specifying more stations than the size of the space in the poll list tag file specifying more then 255 stations trying to index e total number of stations is greater than 255 past the end of the list or polling the broadcast address e current station pointer is greater than the end of STN 255 the poll list tag e a station number greater than 254 was encountered 9 5 DF1 slave poll timeout Determine and correct delay for polling The poll watchdog has timed out for slave The master has not polled this controller in the specified amount of time 9 9 Modem contact was lost Correct modem connection to the controller DCD and or DSR control lines are not being received in proper sequence and or state 10 10 Battery not detected or needs to be replaced Install new battery Publication 1756 PM001C EN P June 2001 Using This Appendix Introduction Appendix B IEC61131 3 Compliance For information about See page Operating System B 2 Data Definitions B 2 Programming Languages B 3 Instruction Set B 4 IEC61131 3 Program Portability B 4 IEC Compliance Tables B 5 The International Electrotechnical Commission EC has developed a series of specifications for p
149. s area is a weakness of IEC61131 3 because no file exchange format is defined by the specification This means that if any program created in one vendor s environment will require manipulation to move it to another vendor s system In order to minimize the effort involved in performing cross vendor portability the RSLogix 5000 programming software for the controllers includes a full ASCII export and import utility Additionally the file format that is utilized by this tool is based on a hybrid of the IEC61131 3 Structured Text language definition Controller operating system and data definitions follow the appropriate IEC61131 3 formats Extensions were implemented in order to convert Ladder Diagram logic into ASCII text since this is not defined by IEC61131 3 For more information on the ASCII export and import utility of RSLogix 5000 programming software see the Logix5000 Controllers Import Export Reference Manual publication 1756 RM084 IEC61131 3 Compliance B 5 IEC Compliance Tables Logix5000 controllers and RSLogix5000 comply with the requirements of IEC61131 3 for the following language features Table Feature Feature Description Extensions and Implementation Notes Number Number 1 2 Lower case letters none 1 3a Number sign Used for immediate value data type designation 1 4a Dollar sign Used for description and string control char
150. s detected a serious Replace the module hardware fault 9 Asynchronous Connection has incurred a First execute Motion Axis Fault Reset If that doesn t work pull failure servo module out and plug back in If all else fails replace servo module 32 The motion task has experienced an overlap The group s course update rate is too high to maintain correct Publication 1756 PM001C EN P June 2001 operation Clear the group fault tag raise the group s update rate and then clear the major fault Fault Codes A 3 Minor Fault Codes Use the following table to determine the cause and corrective action for a minor fault The type and code correspond to the type and code displayed in these locations Controller Properties dialog box Minor Faults tab PROGRAM object MINORFAULTRECORD attribute Table A 2 Minor Fault Types and Codes Type Code Cause Recovery Method 4 4 An arithmetic overflow occurred in an instruction Fix program by examining arithmetic operations order or adjusting values 4 7 The GSV SSV destination tag was too small to hold all Fix the destination so it has enough space of the data 4 35 PID delta time lt 0 Adjust the PID delta time so that it is gt 0 4 36 PID setpoint out of range Adjust the setpoint so that it is within range 4 51 The LEN value of the string tag is greater than the DATA 1 Check that no instruction is writing to the LEN size of the
151. s of your application As you integrate your application with the I 0 devices controllers and networks in your system Refer to the user manual for your specific type of controller Use this manual as a reference when needed This manual is divided into the basic tasks that you perform while programming a Logix5000 controller Each chapter covers a task The tasks are organized in the sequence that you will typically perform them As you use this manual you will see some terms that are formatted differently from the rest of the text Text that is Identifies For example Means Italic the actual name of an item that you Right click User Defined Right click on the item that is named see on your screen or in an example User Defined bold an entry in the Glossary Type aname If you want additional information refer to name in the Glossary If you are viewing the PDF file of the manual click name to jump to the glossary entry courier information that you must supply Right click You must identify the specific program in based on your application a variable Publication 1756 PM001C EN P June 2001 your application Typically it is a name or variable that you have defined name of program Manage Project Files Organize Tasks Organize Tags Program Routines Access System Values Assign Aliases Assign an Indirect Address Buffer 1 0 Table of Contents Chapter 1
152. specific fault and let at least some of your system continue to operate EXAMPLE Use a fault routine In a system that uses recipe numbers as indirect addresses a miss typed number could produce a major fault such as type 4 code 20 To keep the entire system from shutting down a fault routine clears any type 4 code 20 major faults Develop a Fault Routine To clear a specific fault 1 Create a user defined data type that will store the fault information Name the data type FaultRecord and assign the following members Name Data Type Style TimeLow DINT Decimal TimeHigh DINT Decimal Type INT Decimal Code INT Decimal Info DINT 8 Hex 2 Create a tag that will store the fault information Select the FaultRecord data type Publication 1756 PM001C EN P June 2001 15 2 Develop a Fault Routine For a fault due to execution of an instruction 3 Which type of faults do you want the logic to clear Do this Create a fault routine for the program TOnmOoxx In the controller organizer right click name of program and select New Routine In the name box type a name for the fault routine name of fault routine From the Type drop down list select Ladder Click OK Right click name of program and select Properties Click the Configuration tab From the Fault drop down list select name of fault routine Click OK Double click name o fault routine
153. sumed tag connection fails all of the other tags being consumed from that remote controller stop receiving new data Produce Integers for a PLC 5C Controller 1 Open the RSLogx 5000 project 2 Create a user defined data type that contains an array of INTs with an even number of elements such as INT 2 When you produce INTs you must produce two or more 3 Create a produced tag and select the user defined data type from Step 2 4 Open RSNetWorx for ControlNet software 5 In the ControlNet configuration for the target PLC 5C controller a Insert a Receive Scheduled Message b In the Message size enter the number of integers in the produced tag 6 In RSNetWorx for ControlNet software schedule the network Communicate with Another Controller 10 7 Produce REALs for a PLC 5C Controller 1 Open the RSLogx 5000 project 2 How many values do you want to produce If you are producing Then Only one REAL value Create a produced tag and select the REAL data type More than one REAL A Create a user defined data type that contains an value array of REALs B Create a produced tag and select the user defined data type from Step A 3 Open RSNetWorx for ControlNet software 4 In the ControlNet configuration for the target PLC 5C controller a Insert a Receive Scheduled Message b In the Message size enter two times the number of REALs in the produced tag For example if the produced tag cont
154. system you may not have enough bandwidth on your ControlNet network for a tag of 500 bytes If a tag is too large for your ControlNet network make one or more of the following adjustments Reduce your network update time NUT At a faster NUT less connections have to share an update slot Increase the requested packet interval RPD of your connections At higher RPIs connections can take turns sending data during an update slot For a ControlNet bridge module CNB in a remote chassis select the most efficient communication format for that chassis Are most of the modules in the Then select this communication chassis non diagnostic digital 1 0 format for the remote CNB module modules Yes Rack Optimization No None The Rack Optimization format uses an additional 8 bytes for each slot in its chassis Analog modules or modules that are sending or getting diagnostic fuse timestamp or schedule data require direct connections and cannot take advantage of the rack optimized form Selecting None frees up the 8 bytes per slot for other uses such as produced or consumed tags Separate the tag into two or more smaller tags Group the data according to similar update rates For example you could create one tag for data that is critical and another tag for data that is not as critical Assign a different RPI to each tag Create logic to transfer the data in smaller sections packets Refer to Produce a L
155. t Instruction Enter Edit Main Operand Description the buffered timestamp value MOY Dest value_CST 1 Qel CPT L ToggeBi Ctl T Compute LT pes vae csti Del Force Off Expression value_CST 0 5500000 Fi Force GoTo CG lo the upper 32 bits of the timerstamp value ST Go To Cross Reference For Local 4 Data 1 CPT 3 E Edi Local4 Properties Compute Monitor Edit Force Value Of Local 4 1 Data 1 Dest vale CSTO Expression value_CST 1 1 Copy the new timestamp buffered value 5 5 seconds to trigger an output MOV MOV Local 5 0 Data 1 Move Move Source value CST 0 Source value CST 1 de 04 Dest Local 5 0 CSTTimestamp 0 Dest Local 5 0 CSTTimestamp 1 Del 0e TJAN MeinRoutine cst example For forced values in the more complex instructions you can only remove forces You must use the data monitor to set force values for these values MainProgram file_examples Equal A p at TL Data s Right click on the forced value NC rox D000 0000 ON am Cut Instruction Select Remove Force Source B dint_ave Copy Instruction i Paste Delete Instruction Add Ladder Element Edit Instruction Edit Main Operand Description GoTo 5 Go To Cross Reference For Local 1 1 Data resin Edi Local Properties rep ini Monitor Edit Force Value Of
156. t system value CIP Object class PROGRAM CIP Object name THIS Attribute name MAJORFAULTRECORD Dest major fault TimeLow 0 Sets the fault type and code in the major fault tag to zero and sets MAJORFAULTRECORD to the new values which clears the fault MOV MOV SSV Move Move Set system value Source 0 Source 0 CIP Object class PROGRAM CIP Object name THIS Dest major_fault Type Dest major_fault Code Attribute name MAJORFAULTRECORD 0 0 Source major_fault TimeLow 0 42375 where major_fault is the tag from step 2 Publication 1756 PM001C EN P June 2001 18 4 Develop a Power Up Routine Notes Publication 1756 PM001C EN P June 2001 Chapter 19 Store and Load a Project Using Nonvolatile Memory When to Use This Currently only 1756 L55M23 and L55M24 controllers have nonvolatile Procedure memory for project storage In the future we will add the feature to additional controllers within the Logix5000 family of controllers IMPORTANT Nonvolatile memory stores the contents of the user memory at the time that you store the project Changes that you make after you store the project are not reflected in nonvolatile memory If you want to store changes such as online edits tag values or a ControlNet network schedule store the project again after you make the changes Use this procedure to store or load a project using the nonvolatile memor
157. ta in objects There is no status file as in the PLC 5 controller Use the GSV SSV instructions get and set controller system data that is stored in objects The GSV instruction retrieves the specified information and places it in the destination The SSV instruction sets the specified attribute with data from the source Use the SSV instruction carefully Making changes to ATTENTION objects can cause unexpected controller operation or injury to personnel To get or set a system value 1 Open the RSLogix 5000 project 2 From the Help menu select Contents 3 Click the Index tab 4 Type gsv ssv objects and click Display 5 Click the required object Access System Values 5 3 To get or set Click axis of a servo module AXIS system overhead timeslice CONTROLLER physical hardware of a controller CONTROLLERDEVICE coordinated system time for the devices in one CST chassis DF1 communication driver for the serial port DF1 fault history for a controller FAULTLOG attributes of a message instruction MESSAGE status faults and mode of a module MODULE group of axes MOTIONGROUP fault information or scan time for a program PROGRAM instance number of a routine ROUTINE configuration of the serial port SERIALPORT properties or elapsed time of a task TASK wall clock time of a controller WALLCLOCKTIME you want to access 7 Create a tag for the value of the attribute I
158. ta types are useful in the following situations If you have a large number of strings with a fixed size that is less than 82 characters you can conserve memory by creating a new string data type If you must handle strings that have more than 82 characters you can create a new string data type to fit the required number of characters IMPORTANT Use caution when you create a new string data type If you later decide to change the size of the string data type you may lose data in any tags that currently use that data type If you Then make a string data type e The data is truncated smaller e The LEN is unchanged make a string data type The data and LEN is reset to zero larger The following example shows the STRING data type and a new string data type 3 2 This tag uses the default STRING Program Tags MainProgram dioe Scope MainProgram Show Show All Tag Name F baq flt dest flt dest Type STRING STRING 20 This tag is an 20 element array of the default STRING data type bag_bar_code STRING_24 4 X Monitor Tags AEdit Tags This tag uses a new string data type 42234 e The user named the string data type STRING_24 e The new string data type stores only 24 characters Publication 1756 PM001C EN P June 2001 Glossary 32 structure Some data types are a structure e A structure stores a group of data each of which can be
159. tc Em ae 8 1756 CNB 105 AB 1756 CNB 105 Decimal Decimal Enter display style for the value If you want to Do this force a whole SINT INT DINT or REAL value To force a whole value type a force value in the Force Mask column using a decimal octal hexadecimal or float exponential format For a REAL value you must use a float exponential format To remove a force for a whole value type a space force bits within a value To force an individual bit in a SINT INT or DINT value expand the value and edit the Force Mask column The force value is displayed in binary style where e 0 indicates force off e 1 indicates force on e indicates no force You can also use the bit pallet to select a bit to force force a BOOL To force a BOOL enter the force value where e 0 indicates force off e 1 indicates force on To remove a force type a space Publication 1756 PM001C EN P June 2001 14 4 Force Values Enter Forces from Ladder Logic From ladder logic you can set forces only for BOOL tags or integer bit values used in bit instructions MainProgram cst_example When bit 1 changes copy the timestamp to a buffer Right click on the BOOL tag or bit value Emme citron s Copy Instruction Source Local4l CSTTimestamp 1 Qel De Select Force On Force Off or Remove Force Paste Delete Instruction Add Ladder Element Ins Edi
160. th 5000 elements would take 40 connections 5000 125 40 using individual arrays Faster transmission times are achieved than if you used a message instruction to send the entire array Messages are unscheduled and are executed only during the system overhead portion of the Logix5550 execution Therefore messages can take a fairly long time to complete the data transfer You can improve the transfer time by increasing system overhead time slice but this diminishes the performance of the continuous task Publication 1756 PM001C EN P June 2001 11 8 Produce a Large Array Notes Publication 1756 PM001C EN P June 2001 Chapter 12 Communicate with an ASCII Device When to Use this Procedure Use this procedure to exchange ASCII data with a device through the serial port of the controller For example you can use the serial port to read ASCII characters from a weigh scale module or bar code reader send and receive messages from an ASCII triggered device such as a MessageView terminal 4 s nnnm J Je 42237 How to Use This Procedure To complete this procedure do the following tasks Connect the ASCII Device Configure the Serial Port Configure the User Protocol C
161. the name_of_controller controller project as a producer or consumer in a message in only one program within the project program that will use the tag 3 Type a name for the tag 4 Type the data type If the tag is Then type not an array file data_type one dimension array data_type x two dimension array data_type x y three dimension array data type x y z where data type is the type of data that the tag or array stores See Table 3 B on page 3 1 x is the number of elements in the first dimension y is the number of elements in the second dimension z is the number of elements in the third dimension 5 Type a description optionaD Publication 1756 PM001C EN P June 2001 Organize Tags 3 11 Create Tags Using You can also use spreadsheet software such as Microsoft Excel to create and edit tags This lets you take advantage of the editing Microsoft Excel features in the spreadsheet software To create tags using Excel 1 Open the RSLogix 5000 project 2 Create several tags This helps to format the Excel spreadsheet 3 From the Tools menu select Export Tags The tags are saved in D Save in En Projects y el z this folder LL File name Jname_of_controller T ags Save as type RSLogix 5000 Import Export File C5 Cancel Help 5 p Scope All Tags in Project C Controller Tags C Program Tags MainProgram 4
162. the properties of the routine search the routine go to cross references within the routine print the routine export the routine IMPORTANT If the source of a routine is unavailable do not export the project An export file CL5K contains only routines where the source code is available If you export a project where the source code is not available for all routines you will not be able to restore the entire project Publication 1756 PM001C EN P June 2001 Program Routines 4 3 Enter Ladder Instructions 1 an open ladder routine 1 If the routine already contains logic click where you want to enter your logic A new routine contains a rung that is ready for instructions cursor blue When you add an instruction or branch it appears to the right of the cursor When you add a rung it appears below the cursor End 42363 2 Add a ladder element To add a Do this rung Press the Ctrl R keys instruction Press the nsert key Type the mnemonic for the instruction Press the Enter key branch Press the nsert key Type BST Press the Enter key After you enter additional instructions drag the right leg of the branch to the required location on the rung DANDY oO w 2 Publication 1756 PM001C EN P June 2001 4 4 Program Routines Enter Function Block Instructions Element function block A function block routine contains the
163. times the duration of several steps Each step requires a different preset value Because all the values are the same data type DINTs an array is used display its elements click Program Tags MainProgram z the sign Scope MainProgram Show Show All Alias For TI Sort T Type Tag Name Base Tag To collapse an array and 9 hide its elements click the sign elements of timer presets gt tanks TANK 3 3 timer presets DINT E This array contains six timer_presets O DINT su of the DINT t F timer presets 1 DINT RE timer er pes six DINTS H timer presets 3 H timer presets 4 t H timer presets 5 4 X Monitor Tags Edit Tags a 42367 Publication 1756 PM001C EN P June 2001 Two dimension array Organize Tags 3 5 A drill machine can drill one to five holes in a book The machine requires a value for the position of each hole from the leading edge of the book To organize the values into configurations a two dimension array is used The first subscript indicates the hole to which the value corresponds and the second subscript indications how many holes will be drilled one to five subscript of first dimension subscript of second dimension Description 0 1 2 3 4 5 0 1 1 5 2 5 125 1125 1 25 Position of first hole from le
164. tions Publication 1756 PM001C EN P June 2001 2 4 Organize Tasks The following example depicts the execution of a project with more than one task EXAMPLE Task execution order for a project with two periodic tasks and one continuous task Task Task Type Priority Level Execution Time 1 20ms periodic 5 2ms 2 10ms periodic 10 4ms 3 continuous none lowest 24ms Legend ERI Task executes Task is interrupted suspended Task 1 ia EE E Task 3 30 35 40 45 50 elapsed time ms Notes All periodic tasks interrupt the continuous task The highest priority task interrupts all lower priority tasks A higher priority task can interrupt a lower priority task multiple times When the continuous task completes a full scan it restarts immediately Tasks at the same priority execute on a time slice basis at 1 ms intervals To change the properties of a task program or routine name type priority etc right click the task program or routine and select Properties Publication 1756 PM001C EN P June 2001 Organize Tasks 2 5 Verify the Controller As you program your project periodically verify your work 1 In the top most toolbar of the RSLogix 5000 window click 2 If any errors are listed at the bottom of the window a To go to the first error or warning press the F4 key b Correct the error according to the description in the Results
165. to check another part of the bar code If Then yes Go to Extract a Part of a Bar Code on page 13 2 no Stop You are done with this procedure Publication 1756 PM001C EN P June 2001 13 6 Process ASCII Characters Convert a Value Use the following steps to convert the ASCII representation of a value to an DINT or REAL value that you can use in your application The STOD and STOR instructions skip any initial control or non numeric characters except the minus sign in front of a number e If the string contains multiple groups of numbers that are separated by delimiters e g the STOD and STOR instructions convert only the first group of numbers Steps 1 Which type of number is the value If Then floating point Go to step 2 integer Go to step 7 2 Enter the following rung STOR String to Real Source Dest 42810 3 Enter the EM bit of the ARD or ARL instruction that read the value 4 Enter the string tag that contains the value 5 Enter a tag name to store the value for use in your application Define the data type as REAL EXAMPLE After reading the weight from the scale weight_read EM is on the STOR instruction converts the numeric characters in weight_ascii to a REAL value and stores the result in weight weight_read EM STOR String to Real Source weight_ascii Dest 42810 Publication 1756 PM001C EN P June 2001 Process ASCII Characters 13 7
166. u can force a value in two ways You can e force a whole data value For SINT INT DINT and REAL values you can force all the bits as one entity the entire value force the individual bits within a SINT INT or DINT value Force Values 14 3 RSLogix 5000 quick_start BEE File Edit View Search Logic Communications Tools Window Help aia amp ele eo al ie cer ale i See ens Es Ee ERES gt j fotas Te EEE id e Driver AB DFT EE Auser ASi ner p Compare Compute Math M al FileMisc ile B E Controller quick start LA Controller Tags troller Show Show All X TaN x me C Controller Fault Handler roe e Show Sh E sot TaoNane Enter force values in this column E FOREFUHsnder Ye Ei E3 Tasks o Decimal BOOL EAE MainTask m Gea 8 175 DLLO S MainProgram 280000 0000 280000 111 Bina DINT Program Tags 280000 0000 Binary DINT E cst example MainRoutine Decimal INT E Unscheduled Programs E id AB 1756_DI C 0 a Data Types MS Forced AB 1756 DLIO h a stri ae Gent AB 1756_DO C 0 redefine ER Module Defined fees elit H 6 1 0 Configuration SE em AB 1756_DO 0 0 1117564816 input mod ny MS AB 1756_DI C 0 fJ 211756 0816E output n on AB 1756 DI Timest Ei BJ 311756 NB cnb_mode B x AB 1756_DO C 0 110 1756 CNB remd PET fj 41 17564416 INPUT eee 51 1756 0416 OUTPUT Sea aud toes e
167. uction in FBD 35 1 Rising edge detector OSR instruction in ladder and OSRI instruction in FBD 35 2 Falling edge detector OSF instruction in ladder and OSFI instruction in FBD 36 1b Up counter Functionality contained in CTU and RES instructions in ladder and in CTUD instruction in FBD 37 2a On delay timer Functionality contained in TON instruction in ladder and TONR instruction in FBD 37 3a Off delay timer Functionality contained in TOF instruction in ladder and TOFR instruction in FBD 38 2 On delay timing Functionality contained in TON instruction in ladder and TONR instruction in FBD 38 3 Off delay timing Functionality contained in TOF instruction in ladder and TOFR instruction in FBD 57 1 2 Horizontal line Ladder editor FBD editor 57 3 4 Vertical line Ladder editor FBD editor 57 5 6 Horizontal Vertical connection Ladder editor FBD editor 57 9 10 Connection and non connection corners Ladder editor FBD editor 57 11 12 Blocks with connections Ladder editor FBD editor 57 7 8 Line crossings without connection FBD editor 57 13 14 Connectors FBD editor 58 2 Unconditional jump JMP instruction in ladder 58 3 Jump target LBL instruction in ladder 58 4 Conditional jump JMP instruction in ladder 58 5 Conditional return RET instruction in ladder 58 8 Unconditional return RET instruction in ladder 59 Left hand power rail Ladder editor 59 2 Right hand power rail Ladder editor 60 Horizontal link Ladder editor 60 2 Vertical link
168. uilt into a controller used to hold programs and data minor fault A fault condition that is not severe enough for the controller to shut down If this occurs The controller problem with an instruction 1 sets S MINOR 2 logs information about the fault to the PROGRAM object MinorFaultRecord attribute 3 sets bit 4 of the FAULTLOG object MinorFaultBits attribute periodic task overlap sets bit 6 of the FAULTLOG object MinorFaultBits attribute problem with the serial port sets bit 9 of the FAULTLOG object MinorFaultBits attribute low battery sets bit 10 of the FAULTLOG object MinorFaultBits attribute Publication 1756 PM001C EN P June 2001 Glossary 19 To clear minor faults 1 In the controller organizer right click the Controller name_of_controller folder and select Properties 2 Click the Minor Faults tab 3 Use the information in the Recent Faults list to correct the cause of the fault Refer to Minor Fault Codes on page A 3 4 Click the Clear Minors button See major fault minor revision The 1756 line of modules have major and minor revision indicators The minor revision is updated any time there is a change to a module that does not affect its function or interface See electronic keying major revision multicast A mechanism where a module can send data on a network that is simultaneously received by more that one listener Describes the feature of the ControlLogix I O line which supports
169. uously The continuous task runs in the background Any CPU time not allocated to other operations such as motion communications and periodic tasks is used to execute the programs within the continuous task The continuous task restarts itself after the last of its programs finishes A project does not require a continuous task If used there can be only one continuous task All periodic tasks interrupt the continuous task When you create a project the default MainTask is the continuous task You can leave this task as it is or you can change its properties name type etc See periodic task Publication 1756 PM001C EN P June 2001 Glossary 8 Control and Information Protocol Messaging protocol used by Allen Bradley s Logix5000 line of control equipment Native communications protocol used on the ControlNet network controller fault handler The controller fault handler is an optional task that executes when the major fault is not an instruction execution fault program fault routine could not clear the major fault faulted does not exist You can create only one program for the controller fault handler After you create that program you must configure one routine as the main routine The controller fault program does not execute a fault routine If you specify a fault routine for the controller fault program the controller never executes that routine e You
170. use of instruction overloading 22 2 Truncate conversion function TRN instruction 22 3 BCD to INT Convert FRD instruction 22 4 INT to BCD Convert TOD instruction 23 1 Absolute value ABS instruction 23 2 Square root SOR instruction 23 3 Natural log LN instruction 23 4 Log base 10 LOG instruction 23 6 Sine in radians SIN instruction 23 7 Cosine in radians COS instruction 23 8 Tangent in radians TAN instruction 23 9 Principal arc sine ASN instruction 23 10 Principal arc cosine ACS instruction 23 11 Principal arc tangent ATN instruction 24 12 Arithmetic add ADD instruction Publication 1756 PM001C EN P June 2001 IEC61131 3 Compliance B 7 Table Feature Feature Description Extensions and Implementation Notes Number Number 24 13 Arithmetic multiplication MUL instruction 24 14 Arithmetic subtraction SUB instruction 24 15 Arithmetic divide DIV instruction 24 16 Modulo MOD instruction 24 17 Exponentiation XPY instruction 24 18 Value move MOV instruction in ladder 25 Bit shift left Functionality contained in BSL instruction in Ladder for shift of 1 25 2 Bit shift right Functionality contained in BSR instruction in Ladder for shift of 1 25 3 Bit rotate left Functionality contained in BSL instruction in Ladder for shift of 1 25 4 Bit rotate right Functionality contained in BSR instruction in Ladder for shift o
171. ute 2 Monitor bit 6 load from nonvolatile 1 Enter a GSV instructions that gets the FAULTLOG object MinorFaultBits attribute memory 2 Monitor bit 7 problem with the serial port 1 Enter a GSV instructions that gets the FAULTLOG object MinorFaultBits attribute 2 Monitor bit 9 low battery 1 Enter a GSV instructions that gets the FAULTLOG object MinorFaultBits attribute 2 Monitor bit 10 problem with an instruction 1 Create a user defined data type that stores the fault information Name the data type Fau tRecord N O1 Ae and assign the following members Name Data Type Style TimeLow DINT Decimal TimeHigh DINT Decimal Type INT Decimal Code INT Decimal Info DINT 8 Hex Pus a tag that will store the values of the MinorFaultRecord attribute Select the data type from Monitor SMINOR If S MINOR is on use a GSV instruction to get the values of the MinorFaultHecord attribute If you want to detect a minor fault that is caused by another instruction reset S MINOR S MINOR remains set until the end of the scan Publication 1756 PM001C EN P June 2001 17 2 Monitor Minor Faults The following example checks for a low battery warning Check for a minor fault Minor_fault_check times for 1 minute 60000 ms and then automatically restarts itself minor_fault_check DN 4 E Accum TON Timer On Delay Timer minor_fault_check ND Preset 60000 e
172. ver a ControlNet network the tag may need to be less than 500 bytes Refer to Adjust for Bandwidth Limitations on page 10 10 8 If you are producing several tags for the same controller Group the data into one or more user defined data types This uses less connections than producing each tag separately Group the data according to similar update rates To conserve network bandwidth use a greater RPI for less critical data For example you could create one tag for data that is critical and another tag for data that is not as critical Produce a Tag 1 Open the RSLogix 5000 project that contains the tag that you want to produce 2 From the Logic menu select Edit Tags 3 From Scope select name_of_controller controller Only tags that are controller scope can produce data 4 Select the tag that will produce the data and press the ALT Enter keys Name Description A nu Tag Type C Base D p Produced consumers 6 C Consumed Data Type ji Scope name of controller controller Y 42352 Publication 1756 PM001C EN P June 2001 Communicate with Another Controller 10 5 5 Select the Produced option button 6 Type or select the number of controllers that will consume receive the tag 7 Click OK 8 Configure a tag in another controller s to consume this produced tag Refer to Consume a Produced Tag on page 10 5 Consume a Produced Tag 1
173. ween the buffer and your application EXAMPLE Write integer values to a PLC 5 controller Continuously moves the values in dint_array to int_buffer This converts the values to 16 bit integers INTs Then the message instruction sends int bufferto a PLC 5 controller Continuously reads 16 bit integer values INTs from a PLC 5 controller and stores them in int buffer Then the FAL instruction moves the Read integer values from a PLC 5 controller values to dint array This converts the values to 32 bit integers DINTs for use by other instructions in the project message EN fal control FAL MSG J E C RES gt File Arith Logical CEND Type Unconfigured CEND Control fal_control Message Control message Al CDN Length DN t C ER gt Position 0 Mode all CER gt Dest int_buffer fal_control pos 77 Expression dint_array fal_control pos Publication 1756 PM001C EN P June 2001 message EN MSG J E Type Unconfigured CEND Message Control message M CDN gt C ER gt message DN fal_control FAL lE CRES gt File Arith Logical CEND Control fal_control Length CDND Position 0 Mode all CERD Dest dint_array fal_control pos Expression int buffer fal control pos When to Use this Procedure Chapter 11 Produce a Large Array The Logix5000 controller can send as many as 500 bytes of data over a single sch
174. with an ASCII Device 12 21 Enter ASCII Characters Determine if you must complete this step If Then You want logic to create the string Go to Process ASCII Characters on page 12 1 You want to enter the characters Go to step 1 TINTIN T his String Browser window shows the characters up to the value of the LEN member of the string tag The string tag may contain additional data which the String Browser window does not show AWA ASCII Write Append Channel 0 Source string 1 SerialPort Control temp_high_write String Length Characters Sent 42616 1 Double click the value area of the Source E String Browser MV msg line feed 0A newline 0D 0A carriage return 0D Position 0 Count 0 of 82 d Errors gt The number of characters that you see in the The maximum number of characters that the window This is the same as the LEN string tag can hold member of the string tag 42615 2 Type the characters for the string 3 Choose OK Publication 1756 PM001C EN P June 2001 12 22 Communicate with an ASCII Device Notes Publication 1756 PM001C EN P June 2001 Chapter 13 Process ASCII Characters When to Use this Procedure Use this procedure to interpret a bar code and take action based on the bar code use a weight from a weigh scale when the weight is sent as ASCII characters decode a message from an ASCII triggered device such
175. y of a controller If the controller loses power and does not have enough battery capacity it loses the project in user memory Nonvolatile memory lets you keep a copy of your project on the controller The controller does not need power to keep this copy You can load the copy from nonvolatile memory to the user memory of the controller on every power up whenever there is no project in the controller and it powers up anytime through RSLogix 5000 software Publication 1756 PM001C EN P June 2001 19 2 How to Use This Procedure Publication 1756 PM001C EN P June 2001 Store and Load a Project Using Nonvolatile Memory A store or load has the following parameters Table 19 A Parameters of a store or load Parameter How much time does a store or load take Load several seconds Store several minutes In what controller mode s can store or load a project program mode Can I go online with the controller during a store or load no What is the state of the I O during a store or load If you want to store a project in the nonvolatile memory of the controller 1 0 remains in its configured state for program mode Then Go to Store a Project on page 19 3 overwrite the current project in the controller with the project that is stored in the nonvolatile memory of the controller Go to Load a Project on page 19 6 load the project
176. ynchronous Actions that occur independent of each other and lack a regular pattern In Logix5000 controllers I O values update asynchronous to the execution of logic Programs within a task access input and output data directly from controller scoped memory Logic within any task can modify controller scoped data Data and I O values are asynchronous and can change during the course of a task s execution An input value referenced at the beginning of a task s execution can be different when referenced later ATTENTION Take care to ensure that data IHE contains the appropriate values throughout a task s execution You can duplicate or buffer data at the beginning of the scan to provide reference values for your logic Publication 1756 PM001C EN P June 2001 Glossary 2 array An array lets you group data of the same data type under a common name e An array is similar to a file A subscript s identifies each individual element within the array A subscript starts at 0 and extends to the number of elements minus 1 zero based lo expand an array and 3 display its elements click Program Tags MainProgram the sign Tag Name p To collapse an array and amp hide its elements click H tanks TANK 3 3 DINT 5 74 This array contains six DINT elements of the DINT limer presets timer_presets 0 the
177. ype of interface card that the driver will use B In the Property list select the next item C In the Value box type or select the appropriate value D Repeat steps B and C for the remaining properties Ethernet For each Ethernet device on this network with which you want to communicate e g each 1756 ENET module or PLC 5E controller add a map entry A Inthe Host Name column type the IP address or host name of the Ethernet device B Do you want to communicate with another Ethernet device on this network Yes 1 Choose Add New 2 Go to Step A No Go to the next step Click OK Click Close Open the RSLogix 5000 project that you want to download From the Communications menu select Who Active Click the sign next to the network that you want to use for the download Continue expanding the network until the dialog box shows the controller to which you want to download Test a Project 9 3 5 Select the controller and click Download 6 To confirm the download click Download Select a Mode for the To test a project select a mode for the controller Controller RSLogix 5000 name of controller 1756 L1 File Edit View Search Logic Communications Tools Window Help a bed 8 He oje tanks 0 1 Select the required mode p one No Forces s a No Edits Forces Disabled Os Path TCP 34130 130 130 2 Backplane 1

1756-PM001C-EN-P, Logix5000 Controllers Common Procedures

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