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Allen-Bradley Logix5000 Reference Manual
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Rockwell Automation Publication 1756
-RM003N-EN-P - Octo
ber 2011
299
Move/Logical Instructions (MOV
, MVM, BTD, MVMT
, BTDT
, CLR, SW
PB, AND, OR, XOR, NOT
, BA
ND, BOR, BXOR, BNOT)
Chapter
7
Relay Ladder
Structured T
ext
value_b := (value_b AND NOT (mask_2)) OR
(value_a AND mask_2);
298
300
Table of Contents
Default Chapter
5
Default Chapter
5
Table of Contents
5
Where to Find an Instruction
29
Introduction
37
Who Should Use this Manual
37
Purpose of this Manual
37
Common Information for All Instructions
38
Conventions and Related Terms
38
Relay Ladder Rung Condition
39
Function Block States
40
Additional Resources
41
Digital Alarm (ALMD)
44
Chapter 1
44
Relay Ladder
44
Structured Text
45
Function Block
45
ALARM_DIGITAL Structure
45
State Diagrams When Acknowledgement Required
49
State Diagrams When Acknowledgment Not Required
50
ALMD Alarm Acknowledge Required and Latched
51
ALMD Alarm Acknowledge Required and Not Latched
52
ALMD Alarm Acknowledge Not Required and Latched
52
ALMD Alarm Acknowledge Not Required and Not Latched
53
Relay Ladder
53
Structured Text
54
Function Block
54
Analog Alarm (ALMA)
55
Relay Ladder
55
Structured Text
56
Function Block
56
ALARM_ANALOG Structure
56
State Diagrams When Acknowledgement Required
64
State Diagrams When Acknowledgement Not Required
65
ALMA Level Condition Acknowledge Required
67
ALMA Level Condition Acknowledge Not Required
68
ALMA Rate of Change Acknowledge Required
69
ALMA Rate of Change Acknowledge Not Required
70
Relay Ladder
71
Structured Text
71
Function Block
71
Configure an Alarm Instruction
72
Enter Alarm Message Text
74
Message String Variables
75
Multiple Language Versions of Alarm Messages
76
Monitor Alarm Status
77
Buffer Alarms
78
Programmatically Access Alarm Information
79
Suppress or Disable Alarms
81
Controller-Based Alarm Execution
82
Controller Memory Use
83
Scan Time
85
Chapter 2
88
Bit Addressing
88
Examine if Closed (XIC)
90
Relay Ladder
90
Structured Text
90
Relay Ladder
92
Structured Text
92
Examine if Open (XIO)
93
Relay Ladder
93
Structured Text
93
Relay Ladder
95
Structured Text
95
Output Energize (OTE)
96
Relay Ladder
96
Structured Text
96
Relay Ladder
97
Structured Text
97
Output Latch (OTL)
98
Relay Ladder
98
Structured Text
98
Relay Ladder
99
Structured Text
99
Output Unlatch (OTU)
100
Relay Ladder
100
Structured Text
100
Relay Ladder
101
Structured Text
101
One Shot (ONS)
102
Relay Ladder
102
Structured Text
102
Relay Ladder
104
Structured Text
104
One Shot Rising (OSR)
105
Relay Ladder
105
Rockwell Automation Publication 1756-RM003N-EN-P - October
106
One Shot Falling (OSF)
107
Relay Ladder Operands
107
FBD_ONESHOT Structure
109
Function Block
109
One Shot Rising with Input (OSRI)
109
Structured Text
109
Function Block
111
Structured Text
111
FBD_ONESHOT Structure
112
Function Block
112
One Shot Falling with Input (OSFI)
112
Structured Text
112
Function Block
114
Structured Text
114
Timer and Counter Instructions
115
Chapter 3 Timer on Delay (TON)
116
Relay Ladder
116
TIMER Structure
116
Timer off Delay (TOF)
120
Relay Ladder
120
TIMER Structure
120
Retentive Timer on (RTO)
124
Relay Ladder
124
TIMER Structure
124
Timer on Delay with Reset (TONR)
129
Structured Text
129
Function Block
129
FBD_TIMER Structure
129
Structured Text
132
Function Block Example
132
Timer off Delay with Reset (TOFR)
133
Structured Text
133
Function Block Operands
133
FBD_TIMER Structure
133
Structured Text
136
Function Block
136
Retentive Timer on with Reset (RTOR)
137
Structured Text
137
Function Block Operands
137
FBD_TIMER Structure
137
Structured Text
140
Function Block
140
Count up (CTU)
141
Relay Ladder
141
COUNTER Structure
141
Count down (CTD)
145
Relay Ladder
145
COUNTER Structure
145
Count Up/Down (CTUD)
149
Structured Text
149
Function Block
149
FBD_COUNTER Structure
149
Structured Text
152
Function Block
152
Reset (RES)
153
Relay Ladder
153
Input/Output Instructions
155
(Msg, Gsv, Ssv, Iot)
155
Chapter 4 Message (MSG)
156
Relay Ladder
156
Structured Text
156
MESSAGE Structure
156
MSG Error Codes
165
Error Codes
165
Extended Error Codes
167
PLC and SLC Error Codes (.ERR)
169
Block-Transfer Error Codes
171
Specify the Configuration Details
172
Specify this Data for a Logix5000 Controller as a Target Device
173
Specify CIP Data Table Read and Write Messages
173
Reconfigure an I/O Module
174
Relay Ladder
175
Structured Text
175
Specify CIP Generic Messages
176
Specify PLC-5 Messages
179
Specify SLC Messages
181
Specify Block-Transfer Messages
181
Specify PLC-3 Messages
182
Specify PLC-2 Messages
183
MSG Configuration Examples
183
Specify the Communication Details
184
Specify a Path
184
Broadcast Button
186
System Protocol Tab Configuration
188
For Block Transfers
190
Specify a Communication Method or Module Address
190
Choose a Cache Option
191
Guidelines
193
Get System Value (GSV) and Set System Value (SSV)
194
Relay Ladder
194
Structured Text
195
Rockwell Automation Publication 1756-RM003N-EN-P - October
195
GSV/SSV Objects
198
Addoninstructiondefintion Attributes
199
Controller Attributes
199
Controllerdevice Attributes
201
CST Attributes
202
DF1 Attributes
203
Faultlog Attributes
205
Message Attributes
205
Module Attributes
206
Program Attributes
207
Routine Attributes
208
Safety Attributes
209
Serialport Attributes
209
Task Attributes
210
Wallclocktime Attributes
211
Get Fault Information
213
GSV/SSV Programming Example
213
Relay Ladder
213
Structured Text
213
Relay Ladder
214
Set Enable and Disable Flags
214
Structured Text
214
Relay Ladder
215
Structured Text
215
Immediate Output (IOT)
216
Relay Ladder
216
Structured Text
216
Relay Ladder
218
Structured Text
218
Compare Instructions
219
Chapter 5 Compare (CMP)
221
Relay Ladder
221
Structured Text
221
CMP Expressions
223
Valid Operators
223
Format Expressions
223
Determine the Order of Operation
224
Use Strings in an Expression
225
Equal to (EQU)
226
Relay Ladder
226
Structured Text
226
Function Block
227
FBD_COMPARE Structure
227
Relay Ladder
228
Function Block
228
Relay Ladder
229
Structured Text
229
Function Block
229
Greater than or Equal to (GEQ)
230
Relay Ladder
230
Structured Text
230
Function Block
231
FBD_COMPARE Structure
231
Relay Ladder
232
Function Block
232
Relay Ladder
233
Structured Text
233
Function Block
233
Greater than (GRT)
234
Relay Ladder
234
Structured Text
234
Function Block
235
FBD_COMPARE Structure
235
Relay Ladder
236
Function Block
236
Relay Ladder
237
Structured Text
237
Function Block
237
Less than or Equal to (LEQ)
238
Relay Ladder
238
Structured Text
238
Function Block
239
FBD_COMPARE Structure
239
Relay Ladder
240
Function Block
240
Relay Ladder
241
Structured Text
241
Function Block
241
Less than (LES)
242
Relay Ladder
242
Structured Text
242
Function Block
243
FBD_COMPARE Structure
243
Relay Ladder
244
Function Block
244
Relay Ladder
245
Structured Text
245
Function Block
245
Rockwell Automation Publication 1756-RM003N-EN-P - October
245
Limit (LIM)
246
Relay Ladder
246
Structured Text
246
FBD_LIMIT Structure
247
Function Block
247
Function Block
249
Relay Ladder
249
Function Block
250
Relay Ladder
250
Structured Text
250
Function Block
251
Relay Ladder
251
Structured Text
251
Function Block
252
Mask Equal to (MEQ)
252
Relay Ladder
252
Structured Text
252
Entering an Immediate Mask Value
253
FBD_MASK_EQUAL Structure
253
Function Block
254
Relay Ladder
254
Function Block
255
Relay Ladder
255
Structured Text
255
Function Block
256
Relay Ladder
256
Structured Text
256
Not Equal to (NEQ)
257
Relay Ladder
257
Structured Text
257
FBD_COMPARE Structure
258
Function Block
258
Function Block
259
Relay Ladder
259
Function Block
260
Relay Ladder
260
Structured Text
260
Compute (CPT)
262
Chapter 6
262
Relay Ladder
262
Structured Text
262
Valid Operators
264
Format Expressions
264
Determine the Order of Operation
265
Add (ADD)
266
Relay Ladder
266
Structured Text
266
Function Block
266
FBD_MATH Structure
267
Relay Ladder
267
Function Block
267
Relay Ladder
268
Structured Text
268
Function Block
268
Subtract (SUB)
269
Relay Ladder
269
Structured Text
269
Function Block
269
FBD_MATH Structure
270
Relay Ladder
270
Function Block
270
Relay Ladder
271
Structured Text
271
Function Block
271
Multiply (MUL)
272
Relay Ladder
272
Structured Text
272
Function Block
272
FBD_MATH Structure
273
Relay Ladder
273
Function Block
273
Relay Ladder
274
Structured Text
274
Function Block
274
Divide (DIV)
275
Relay Ladder
275
Structured Text
275
Function Block
275
FBD_MATH Structure
276
Relay Ladder
277
Function Block
277
Structured Text
278
Function Block
278
Relay Ladder
278
Modulo (MOD)
279
Relay Ladder
279
Structured Text
279
Function Block
279
Rockwell Automation Publication 1756-RM003N-EN-P - October
279
FBD_MATH Structure
280
Function Block
281
Relay Ladder
281
Function Block
282
Relay Ladder
282
Structured Text
282
FBD_MATH_ADVANCED Structure
283
Function Block
283
Relay Ladder
283
Square Root (SQR)
283
Structured Text
283
Function Block
284
Relay Ladder
284
Function Block
285
Relay Ladder
285
Structured Text
285
FBD_MATH Structure
286
Function Block
286
Negate (NEG)
286
Relay Ladder
286
Structured Text
286
Function Block
287
Relay Ladder
287
Function Block
288
Relay Ladder
288
Structured Text
288
Absolute Value (ABS)
289
FBD_MATH_ADVANCED Structure
289
Function Block
289
Relay Ladder
289
Structured Text
289
Function Block
290
Relay Ladder
290
Function Block
291
Relay Ladder
291
Structured Text
291
Move (MOV)
295
Chapter 7
295
Relay Ladder
295
Structured Text
295
Relay Ladder
296
Structured Text
296
Masked Move (MVM)
297
Relay Ladder
297
Structured Text
297
Enter an Immediate Mask Value
298
Relay Ladder
299
Structured Text
299
Masked Move with Target (MVMT)
300
Structured Text
300
Function Block
300
FBD_MASKED_MOVE Structure
300
Enter an Immediate Mask Value by Using an Input Reference
301
Structured Text
302
Bit Field Distribute (BTD)
303
Relay Ladder
303
Bit Field Distribute with Target (BTDT)
306
Structured Text
306
Function Block
306
FBD_BIT_FIELD_DISTRIBUTE Structure
306
Structured Text
308
Function Block
308
Clear (CLR)
309
Relay Ladder
309
Structured Text
309
Relay Ladder
310
Structured Text
310
Swap Byte (SWPB)
311
Relay Ladder
311
Structured Text
312
Relay Ladder
313
Structured Text
313
Relay Ladder
314
Structured Text
314
Bitwise and (AND)
315
Relay Ladder
315
Structured Text
315
Function Block
315
FBD_LOGICAL Structure
316
Relay Ladder
316
Function Block
317
Relay Ladder
318
Structured Text
318
Function Block
318
Bitwise or (OR)
319
Relay Ladder
319
Structured Text
319
Function Block
319
FBD_LOGICAL Structure
320
Relay Ladder
320
Function Block
321
Relay Ladder
322
Structured Text
322
Function Block
322
Bitwise Exclusive or (XOR)
323
Relay Ladder
323
Structured Text
323
Function Block
323
FBD_LOGICAL Structure
324
Relay Ladder
324
Function Block
325
Relay Ladder
326
Structured Text
326
Function Block
326
Bitwise NOT (NOT)
327
Relay Ladder
327
Structured Text
327
Function Block
327
FBD_LOGICAL Structure
328
Relay Ladder
328
Function Block
329
Relay Ladder
330
Structured Text
330
Function Block
330
Boolean and (BAND)
331
Structured Text
331
Function Block
331
FBD_BOOLEAN_AND Structure
331
Structured Text
333
Function Block
333
Boolean or (BOR)
334
Structured Text
334
Function Block
334
FBD_BOOLEAN_OR Structure
334
Structured Text
336
Function Block
336
Boolean Exclusive or (BXOR)
337
Structured Text
337
Function Block
337
FBD_BOOLEAN_XOR Structure
337
Structured Text
339
Function Block
339
Boolean NOT (BNOT)
340
Structured Text
340
Function Block
340
FBD_BOOLEAN_NOT Structure
340
Structured Text
342
Function Block
342
Array (File)/Misc. Instructions
343
Chapter 8 Selecting Mode of Operation
344
All Mode
344
Numerical Mode
346
Incremental Mode
347
File Arithmetic and Logic (FAL)
349
Relay Ladder
349
Structured Text
349
CONTROL Structure
350
FAL Expressions
359
Valid Operators
359
Format Expressions
359
Determine the Order of Operation
360
File Search and Compare (FSC)
361
Relay Ladder
361
CONTROL Structure
361
FSC Expressions
367
Valid Operators
367
Format Expressions
367
Determine the Order of Operation
368
Use Strings in an Expression
369
Copy File (COP) Synchronous Copy File (CPS)
370
Relay Ladder
370
Structured Text
370
Relay Ladder
373
Structured Text
373
Relay Ladder
374
Structured Text
374
Relay Ladder
375
Structured Text
375
Rockwell Automation Publication 1756-RM003N-EN-P - October
375
File Fill (FLL)
376
Relay Ladder
376
Structured Text
376
Relay Ladder
379
Structured Text
379
File Average (AVE)
380
Relay Ladder
380
Structured Text
380
CONTROL Structure
381
Relay Ladder
383
Structured Text
383
Relay Ladder
384
Structured Text
384
File Sort (SRT)
385
Relay Ladder
385
Structured Text
385
CONTROL Structure
385
Relay Ladder
388
Structured Text
388
Relay Ladder
389
Structured Text
389
File Standard Deviation (STD)
390
Relay Ladder
390
CONTROL Structure
390
Structured Text
391
Relay Ladder
394
Structured Text
394
Relay Ladder
395
Structured Text
396
Size in Elements (SIZE)
397
Relay Ladder
397
Structured Text
397
Relay Ladder
398
Structured Text
398
Relay Ladder
399
Structured Text
399
Bit Shift Left (BSL)
402
Chapter 9
402
Relay Ladder
402
CONTROL Structure
402
Bit Shift Right (BSR)
406
Relay Ladder
406
CONTROL Structure
406
FIFO Load (FFL)
410
Relay Ladder
410
CONTROL Structure
411
FIFO Unload (FFU)
416
Relay Ladder
416
CONTROL Structure
417
LIFO Load (LFL)
422
Relay Ladder
422
CONTROL Structure
423
LIFO Unload (LFU)
428
Relay Ladder
428
CONTROL Structure
429
Sequencer Input (SQI)
436
Chapter 10
436
Relay Ladder
436
CONTROL Structure
436
Enter an Immediate Mask Value
437
Use SQI Without SQO
439
Sequencer Output (SQO)
440
Relay Ladder
440
Enter an Immediate Mask Value
441
Using SQI with SQO
443
Resetting the Position of SQO
443
Sequencer Load (SQL)
444
Relay Ladder
444
CONTROL Structure
444
Jump to Label (JMP)
451
Chapter 11 Relay Ladder
451
Jump to Subroutine (JSR)
453
Subroutine (SBR) Return (RET)
453
Relay Ladder
453
Structured Text
453
Function Block
454
Relay Ladder
454
Structured Text
454
Relay Ladder
455
Structured Text
455
Function Block
455
Relay Ladder and Structured Text
457
Function Block
458
Relay Ladder
459
Structured Text
459
Relay Ladder
460
Function Block
461
Jump to External Routine (JXR)
462
Relay Ladder
462
EXT_ROUTINE_CONTROL Structure
463
Temporary End (TND)
465
Relay Ladder Operands
465
Structured Text
465
Relay Ladder
466
Structured Text
466
Master Control Reset (MCR)
467
Relay Ladder
467
User Interrupt Disable (UID) User Interrupt Enable (UIE)
470
Relay Ladder
470
Structured Text
470
Relay Ladder
471
Structured Text
471
Always False Instruction (AFI)
472
Relay Ladder
472
No Operation (NOP)
473
Relay Ladder
473
End of Transition (EOT)
474
Relay Ladder
474
Structured Text
474
Relay Ladder
475
Structured Text
475
SFC Pause (SFP)
476
Relay Ladder
476
Structured Text
476
Relay Ladder
477
Structured Text
478
SFC Reset (SFR)
478
Relay Ladder Operands
478
Relay Ladder
479
Structured Text
480
Trigger Event Task (EVENT)
481
Relay Ladder
481
Structured Text
481
Programmatically Determine if an EVENT Instruction Triggered
481
Task
481
Relay Ladder
482
Structured Text
483
Chapter 12 For (FOR)
486
Relay Ladder
486
Structured Text
486
Break (BRK)
489
Relay Ladder
489
Structured Text
489
Return (RET)
490
Relay Ladder
490
Chapter 13 File Bit Comparison (FBC)
494
Relay Ladder
494
COMPARE Structure
494
RESULT Structure
495
Select the Search Mode
495
Diagnostic Detect (DDT)
501
Relay Ladder
501
COMPARE Structure
501
RESULT Structure
502
Select the Search Mode
502
Data Transitional (DTR)
508
Relay Ladder
508
Enter an Immediate Mask Value
508
Proportional Integral Derivative (PID)
511
Relay Ladder
511
Structured Text
512
PID Structure
512
Configure a PID Instruction
516
Specify Tuning
516
Specify Configuration
517
Specify Alarms
517
Specify Scaling
518
Use PID Instructions
518
To Auto
520
PID Instruction Timing
521
Relay Ladder
522
Structured Text
522
Relay Ladder
523
Structured Text
523
Relay Ladder
524
Structured Text
525
Bumpless Restart
525
Derivative Smoothing
526
Set the Deadband
526
Use Output Limiting
527
Feedforward or Output Biasing
527
Cascade Loops
527
Relay Ladder
528
Structured Text
528
Control a Ratio
528
Structured Text
529
PID Theory
530
PID Process
530
PID Process with Master/Slave Loops
530
Trigonometric Instructions
531
(Sin, Cos, Tan, Asn, Asin, Acs, Acos, Atn, Atan)
531
Chapter 14 Sine (SIN)
532
Relay Ladder
532
Structured Text
532
Function Block
532
FBD_MATH_ADVANCED Structure
532
Relay Ladder
533
Function Block
533
Structured Text
533
Cosine (COS)
534
Relay Ladder
534
Structured Text
534
Function Block
534
FBD_MATH_ADVANCED Structure
534
Relay Ladder
535
Function Block
535
Structured Text
535
Tangent (TAN)
536
Relay Ladder
536
Structured Text
536
Function Block
536
FBD_MATH_ADVANCED Structure
536
Relay Ladder
537
Function Block
537
Structured Text
537
Arc Sine (ASN)
538
Relay Ladder
538
Structured Text
538
Function Block
538
FBD_MATH_ADVANCED Structure
538
Relay Ladder
539
Function Block
539
Structured Text
539
Arc Cosine (ACS)
540
Relay Ladder
540
Structured Text
540
Function Block
540
FBD_MATH_ADVANCED Structure
540
Relay Ladder
541
Function Block
541
Structured Text
541
Arc Tangent (ATN)
542
Relay Ladder
542
Structured Text
542
Function Block
542
FBD_MATH_ADVANCED Structure
543
Relay Ladder
543
Function Block
543
Relay Ladder
544
Structured Text
544
Function Block
544
Advanced Math Instructions
545
Chapter 15 Natural Log (LN)
546
Relay Ladder
546
Structured Text
546
Function Block
546
FBD_MATH_ADVANCED Structure
546
Relay Ladder
547
Function Block
547
Relay Ladder Example
548
Structured Text
548
Function Block
548
Rockwell Automation Publication 1756-RM003N-EN-P - October
548
FBD_MATH_ADVANCED Structure
549
Function Block
549
Log Base 10 (LOG)
549
Relay Ladder
549
Structured Text
549
Function Block
550
Relay Ladder
550
Function Block
551
Relay Ladder
551
Structured Text
551
Function Block
552
Relay Ladder
552
Structured Text
552
To the Power of y (XPY)
552
FBD_MATH Structure
553
Function Block
554
Relay Ladder
554
Function Block
555
Relay Ladder
555
Structured Text
555
Degrees (DEG)
558
Chapter 16
558
Relay Ladder
558
Structured Text
558
Function Block
558
FBD_MATH_ADVANCED Structure
559
Relay Ladder
559
Function Block
559
Relay Ladder
560
Structured Text
560
Function Block
560
Radians (RAD)
561
Relay Ladder
561
Structured Text
561
Function Block
561
FBD_MATH_ADVANCED Structure
562
Relay Ladder
562
Function Block
562
Relay Ladder
563
Structured Text
563
Function Block
563
Convert to BCD (TOD)
564
Relay Ladder
564
Function Block
564
FBD_CONVERT Structure
564
Relay Ladder
565
Function Block
566
Relay Ladder
566
Convert to Integer (FRD)
567
Relay Ladder
567
Function Block
567
FBD_CONVERT Structure
567
Relay Ladder
568
Function Block
568
Relay Ladder
569
Function Block
569
Truncate (TRN)
570
Relay Ladder
570
Structured Text
570
Function Block
570
FBD_TRUNCATE Structure
570
Relay Ladder
571
Function Block
571
Relay Ladder
572
Structured Text
572
Function Block
572
1756-L7X Controllers
573
Instruction Execution
575
Chapter 17
577
ASCII Error Codes
577
String Data Types
577
ASCII Test for Buffer Line (ABL)
578
Relay Ladder
578
Structured Text
578
SERIAL_PORT_CONTROL Structure
578
Relay Ladder
580
Structured Text
580
ASCII Chars in Buffer (ACB)
581
Relay Ladder
581
Structured Text
581
SERIAL_PORT_CONTROL Structure
581
Relay Ladder
582
Structured Text
582
ASCII Clear Buffer (ACL)
583
Relay Ladder
583
Structured Text
583
Relay Ladder
584
Structured Text
584
Rockwell Automation Publication 1756-RM003N-EN-P - October
584
ASCII Handshake Lines (AHL)
585
Relay Ladder
585
SERIAL_PORT_CONTROL Structure
586
Structured Text
586
Relay Ladder
588
Structured Text
589
ASCII Read (ARD)
590
Relay Ladder
590
SERIAL_PORT_CONTROL Structure
591
Structured Text
591
Relay Ladder
592
Structured Text
593
ASCII Read Line (ARL)
594
Relay Ladder
594
SERIAL_PORT_CONTROL Structure
595
Structured Text
595
Relay Ladder
596
Structured Text
597
ASCII Write Append (AWA)
598
Relay Ladder
598
SERIAL_PORT_CONTROL Structure
599
Structured Text
599
Relay Ladder
600
Relay Ladder
601
Structured Text
601
ASCII Write (AWT)
602
Relay Ladder
602
SERIAL_PORT_CONTROL Structure
603
Structured Text
603
Relay Ladder
604
Relay Ladder
605
Structured Text
605
ASCII String Instructions
607
Chapter 18 String Data Types
609
String Concatenate (CONCAT)
610
Relay Ladder
610
Structured Text
610
Relay Ladder
611
Structured Text
611
String Delete (DELETE)
612
Relay Ladder
612
Structured Text
612
Relay Ladder
613
Structured Text
613
Find String (FIND)
614
Relay Ladder
614
Structured Text
614
Relay Ladder
615
Structured Text
615
Insert String (INSERT)
616
Relay Ladder
616
Structured Text
616
Relay Ladder
617
Structured Text
617
Middle String (MID)
618
Relay Ladder
618
Structured Text
618
Relay Ladder
619
Structured Text
619
String Data Types
622
Chapter 19 String to DINT (STOD)
623
Relay Ladder
623
Structured Text
623
Relay Ladder
624
Structured Text
624
String to REAL (STOR)
625
Relay Ladder Operands
625
Structured Text
625
Relay Ladder
626
Structured Text
626
DINT to String (DTOS)
627
Relay Ladder
627
Structured Text
627
Relay Ladder
628
Structured Text
628
REAL to String (RTOS)
629
Relay Ladder
629
Structured Text
629
Relay Ladder
630
Structured Text
630
Upper Case (UPPER)
631
Relay Ladder
631
Structured Text
631
Relay Ladder
632
Structured Text
632
Rockwell Automation Publication 1756-RM003N-EN-P - October
632
Lower Case (LOWER)
633
Relay Ladder
633
Structured Text
633
Relay Ladder
634
Structured Text
634
Chapter 20 Breakpoints (BPT)
635
Relay Ladder
635
String Format
636
Tracepoints (TPT)
639
Relay Ladder
639
String Format
639
Appendix A
643
Introduction
643
Status Flags
644
Expressions in Array Subscripts
646
Immediate Values
646
Floating Point Values
647
Guidelines for Floating-Point Math Operations
647
Totalizer Examples
648
Data Conversions
649
Data Types
650
LINT Data Type Considerations
650
SINT or INT to DINT
650
Integer to REAL
652
DINT to SINT or INT
652
REAL to an Integer
653
Introduction
655
Appendix B
655
Function Block Elements
655
Latching Data
656
Order of Execution
658
Resolve a Loop
658
Resolve Data Flow between Two Blocks
660
Create a One Scan Delay
660
Summary
660
Function Block Responses to Overflow Conditions
661
Timing Modes
661
Common Instruction Parameters for Timing Modes
662
Overview of Timing Modes
665
Program/Operator Control
666
Introduction
669
Appendix C
669
Structured Text Syntax
669
Assignments
670
Specify a Non-Retentive Assignment
671
Assign an ASCII Character to a String
672
Expressions
673
Use Arithmetic Operators and Functions
674
Use Relational Operators
675
Use Logical Operators
677
Use Bitwise Operators
678
Determine the Order of Execution
678
Instructions
679
Constructs
680
Some Key Words Are Reserved
680
Structured Text
681
If...then
681
Case
684
Structured Text
684
For
687
Structured Text
687
While
690
Structured Text
690
Repeat
693
Structured Text
693
Comments
696
Rockwell Automation Publication 1756-RM003N-EN-P - October
697
Other manuals for Allen-Bradley Logix5000
User Manual
84 pages
Programming Manual
92 pages
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Allen-Bradley Logix5000 Specifications
General
Brand
Allen-Bradley
Model
Logix5000
Category
Controller
Language
English
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