Logix5000 Controllers General Instructions - SLAC Confluence

More documents

Recommendations

Info

488 Special <strong>Instructions</strong> (FBC, DDT, DTR, PID)Diagnostic Detect (DDT)The DDT instruction compares bits in a Source array with bits in aReference array to determine changes of state.Operands:Relay LadderOperand Type Format DescriptionSource DINT array tag array to compare to the referencedo not use CONTROL.POS in the subscriptReference DINT array tag array to compare to the sourcedo not use CONTROL.POS in the subscriptResult DINT array tag array to store the resultsdo not use CONTROL.POS in the subscriptCmp control CONTROL structure control structure for the compareLength DINT immediate number of bits to comparePosition DINT immediate current position in the sourceinitial value typically 0Result CONTROL structure control structure for the resultscontrolLength DINT immediate number of storage locations in the resultPosition DINT immediate current position in the resultinitial value typically 0ATTENTIONUse different tags for the compare control structure and theresult control structure. Using the same tag for both couldresult in unpredictable operation, possibly causing equipmentdamage and/or injury to personnel.Publication 1756-RM003I-EN-P - January 2007
Special <strong>Instructions</strong> (FBC, DDT, DTR, PID) 489COMPARE StructureMnemonic Data Type Description.EN BOOL The enable bit indicates that the DDT instruction is enabled..DN BOOL The done bit is set when the DDT instruction compares the last bit in the Source andReference arrays..FD BOOL The found bit is set each time the DDT instruction records a mismatch (one-at-a-timeoperation) or after recording all mismatches (all-per-scan operation)..IN BOOL The inhibit bit indicates the DDT search mode.0 = all mode1 = one mismatch at a time mode.ER BOOL The error bit is set if the compare .POS < 0, the compare .LEN < 0, the result .POS < 0 or theresult .LEN < 0. The instruction stops executing until the program clears the .ER bit..LEN DINT The length value identifies the number of bits to compare..POS DINT The position value identifies the current bit.RESULT StructureMnemonic Data Type Description.DN BOOL The done bit is set when the Result array is full..LEN DINT The length value identifies the number of storage locations in the Result array..POS DINT The position value identifies the current position in the Result array.Description:When enabled, the DDT instruction compares the bits in the Sourcearray with the bits in the Reference array, records the bit number ofeach mismatch in the Result array, and changes the value of theReference bit to match the value of the corresponding Source bit.IMPORTANTYou must test and confirm that the instruction doesn’t change data that you don’twant it to change.The DDT instruction operates on contiguous memory. In some cases, the instructionsearches or writes past the array into other members of the tag. This happens if alength is too big and the tag is a user-defined data type.The difference between the DDT and FBC instructions is that eachtime the DDT instruction finds a mismatch, the DDT instructionchanges the reference bit to match the source bit. The FBC instructiondoes not change the reference bit.Publication 1756-RM003I-EN-P - January 2007
Page 1 and 2:
Logix5000Controllers GeneralInstruc
Page 5 and 6:
Table of ContentsSummary of Changes
Page 7 and 8:
Table of Contents 7Extended Error C
Page 9 and 10:
Table of Contents 9Array (File)/Mis
Page 11:
Table of Contents 11Set the deadban
Page 14 and 15:
14 Table of ContentsPublication 175
Page 16 and 17:
16 Summary of ChangesNotes:Publicat
Page 18 and 19:
18 PrefacePurpose of This ManualThi
Page 20 and 21:
20 PrefaceRelay ladder rung conditi
Page 22 and 23:
22 PrefaceNotes:Publication 1756-RM
Page 24 and 25:
24 Instruction LocatorInstruction:
Page 26 and 27:
Page 28 and 29:
Page 30 and 31:
30 Instruction LocatorPublication 1
Page 32 and 33:
32 Digital Alarm Instruction (ALMD)
Page 34 and 35:
Page 36 and 37:
Page 38 and 39:
Page 40 and 41:
Page 42 and 43:
Page 44 and 45:
Page 46 and 47:
Page 48 and 49:
48 Analog Alarm Instruction (ALMA)A
Page 50 and 51:
50 Analog Alarm Instruction (ALMA)S
Page 52 and 53:
52 Analog Alarm Instruction (ALMA)I
Page 54 and 55:
54 Analog Alarm Instruction (ALMA)I
Page 56 and 57:
56 Analog Alarm Instruction (ALMA)O
Page 58 and 59:
Page 60 and 61:
Page 62 and 63:
62 Analog Alarm Instruction (ALMA)E
Page 64 and 65:
64 Analog Alarm Instruction (ALMA)E
Page 66 and 67:
Page 68 and 69:
Page 70 and 71:
70 Bit Instructions (XIC, XIO, OTE,
Page 72 and 73:
Page 74 and 75:
Page 76 and 77:
Page 78 and 79:
Page 80 and 81:
Page 82 and 83:
Page 84 and 85:
Page 86 and 87:
Page 88 and 89:
Page 90 and 91:
Page 92 and 93:
Page 94 and 95:
Page 96 and 97:
96 Timer and Counter Instructions (
Page 98 and 99:
98 Timer and Counter Instructions (
Page 100 and 101:
100 Timer and Counter Instructions
Page 102 and 103:
Page 104 and 105:
Page 106 and 107:
Page 108 and 109:
Page 110 and 111:
Page 112 and 113:
Page 114 and 115:
Page 116 and 117:
Page 118 and 119:
Page 120 and 121:
Page 122 and 123:
Page 124 and 125:
Page 126 and 127:
Page 128 and 129:
Page 130 and 131:
Page 132 and 133:
Page 134 and 135:
Page 136 and 137:
Page 138 and 139:
Page 140 and 141:
140 Input/Output Instructions (MSG,
Page 142 and 143:
Page 144 and 145:
Page 146 and 147:
Page 148 and 149:
Page 150 and 151:
Page 152 and 153:
Page 154 and 155:
Page 156 and 157:
Page 158 and 159:
Page 160 and 161:
Page 162 and 163:
Page 164 and 165:
Page 166 and 167:
Page 168 and 169:
Page 170 and 171:
Page 172 and 173:
Page 174 and 175:
Page 176 and 177:
Page 178 and 179:
Page 180 and 181:
Page 182 and 183:
Page 184 and 185:
Page 186 and 187:
Page 188 and 189:
Page 190 and 191:
Page 192 and 193:
Page 194 and 195:
Page 196 and 197:
Page 198 and 199:
Page 200 and 201:
Page 202 and 203:
Page 204 and 205:
Page 206 and 207:
206 Compare Instructions (CMP, EQU,
Page 208 and 209:
Page 210 and 211:
Page 212 and 213:
Page 214 and 215:
Page 216 and 217:
Page 218 and 219:
Page 220 and 221:
Page 222 and 223:
Page 224 and 225:
Page 226 and 227:
Page 228 and 229:
Page 230 and 231:
Page 232 and 233:
Page 234 and 235:
Page 236 and 237:
Page 238 and 239:
Page 240 and 241:
Page 242 and 243:
Page 244 and 245:
Page 246 and 247:
Page 248 and 249:
248 Compute/Math Instructions (CPT,
Page 250 and 251:
Page 252 and 253:
Page 254 and 255:
Page 256 and 257:
Page 258 and 259:
Page 260 and 261:
Page 262 and 263:
Page 264 and 265:
Page 266 and 267:
Page 268 and 269:
Page 270 and 271:
Page 272 and 273:
Page 274 and 275:
Page 276 and 277:
Page 278 and 279:
Page 280 and 281:
Page 282 and 283:
Page 284 and 285:
284 Move/Logical Instructions (MOV,
Page 286 and 287:
Page 288 and 289:
Page 290 and 291:
Page 292 and 293:
Page 294 and 295:
Page 296 and 297:
Page 298 and 299:
Page 300 and 301:
Page 302 and 303:
Page 304 and 305:
Page 306 and 307:
Page 308 and 309:
Page 310 and 311:
Page 312 and 313:
Page 314 and 315:
Page 316 and 317:
Page 318 and 319:
Page 320 and 321:
Page 322 and 323:
Page 324 and 325:
Page 326 and 327:
Page 328 and 329:
Page 330 and 331:
Page 332 and 333:
332 Array (File)/Misc. Instructions
Page 334 and 335:
Page 336 and 337:
Page 338 and 339:
Page 340 and 341:
Page 342 and 343:
Page 344 and 345:
Page 346 and 347:
Page 348 and 349:
Page 350 and 351:
Page 352 and 353:
Page 354 and 355:
Page 356 and 357:
Page 358 and 359:
Page 360 and 361:
Page 362 and 363:
Page 364 and 365:
Page 366 and 367:
Page 368 and 369:
Page 370 and 371:
Page 372 and 373:
Page 374 and 375:
Page 376 and 377:
Page 378 and 379:
Page 380 and 381:
Page 382 and 383:
Page 384 and 385:
Page 386 and 387:
Page 388 and 389:
388 Array (File)/Shift Instructions
Page 390 and 391:
Page 392 and 393:
Page 394 and 395:
Page 396 and 397:
Page 398 and 399:
Page 400 and 401:
Page 402 and 403:
Page 404 and 405:
Page 406 and 407:
Page 408 and 409:
Page 410 and 411:
Page 412 and 413:
Page 414 and 415:
Page 416 and 417:
Page 418 and 419:
Page 420 and 421:
Page 422 and 423:
422 Sequencer Instructions (SQI, SQ
Page 424 and 425:
Page 426 and 427:
Page 428 and 429:
Page 430 and 431:
Page 432 and 433:
Page 434 and 435:
Page 436 and 437:
436 Program Control Instructions (J
Page 438 and 439: 438 Program Control Instructions (J
Page 472 and 473: 472 For/Break Instructions (FOR, FO
Page 480 and 481: 480 Special Instructions (FBC, DDT,
Page 522 and 523: 522 Trigonometric Instructions (SIN
Page 538 and 539:
538 Trigonometric Instructions (SIN
Page 540 and 541:
Page 542 and 543:
Page 544 and 545:
Page 546 and 547:
546 Advanced Math Instructions (LN,
Page 548 and 549:
Page 550 and 551:
Page 552 and 553:
Page 554 and 555:
Page 556 and 557:
556 Math Conversion Instructions (D
Page 558 and 559:
Page 560 and 561:
Page 562 and 563:
Page 564 and 565:
Page 566 and 567:
Page 568 and 569:
Page 570 and 571:
Page 572 and 573:
572 ASCII Serial Port Instructions
Page 574 and 575:
Page 576 and 577:
Page 578 and 579:
Page 580 and 581:
Page 582 and 583:
Page 584 and 585:
Page 586 and 587:
Page 588 and 589:
Page 590 and 591:
Page 592 and 593:
Page 594 and 595:
Page 596 and 597:
Page 598 and 599:
Page 600 and 601:
Page 602 and 603:
Page 604 and 605:
Page 606 and 607:
606 ASCII String Instructions (CONC
Page 608 and 609:
Page 610 and 611:
Page 612 and 613:
Page 614 and 615:
Page 616 and 617:
Page 618 and 619:
Page 620 and 621:
620 ASCII Conversion Instructions (
Page 622 and 623:
Page 624 and 625:
Page 626 and 627:
Page 628 and 629:
Page 630 and 631:
Page 632 and 633:
Page 634 and 635:
Page 636 and 637:
636 Common AttributesInstructions e
Page 638 and 639:
638 Common AttributesIf you use a S
Page 640 and 641:
640 Common AttributesREAL to an int
Page 642 and 643:
642 Function Block AttributesUse th
Page 644 and 645:
644 Function Block AttributesOrder
Page 646 and 647:
646 Function Block AttributesDo not
Page 648 and 649:
648 Function Block AttributesCreate
Page 650 and 651:
650 Function Block AttributesTiming
Page 652 and 653:
652 Function Block AttributesCommon
Page 654 and 655:
654 Function Block AttributesOvervi
Page 656 and 657:
656 Function Block AttributesThe Pr
Page 658 and 659:
658 Function Block AttributesProgra
Page 660 and 661:
660 Structured Text ProgrammingTerm
Page 662 and 663:
662 Structured Text ProgrammingThe
Page 664 and 665:
664 Structured Text ProgrammingIn s
Page 666 and 667:
666 Structured Text ProgrammingFor
Page 668 and 669:
668 Structured Text ProgrammingUse
Page 670 and 671:
670 Structured Text ProgrammingInst
Page 672 and 673:
672 Structured Text ProgrammingIF..
Page 674 and 675:
674 Structured Text ProgrammingExam
Page 676 and 677:
676 Structured Text Programmingopti
Page 678 and 679:
678 Structured Text ProgrammingFOR
Page 680 and 681:
Page 682 and 683:
682 Structured Text ProgrammingThe
Page 684 and 685:
684 Structured Text ProgrammingREPE
Page 686 and 687:
Page 688 and 689:
688 Structured Text ProgrammingFor
Page 691 and 692:
IndexAABL instruction 575ABS instru
Page 693 and 694:
Index 693DEG 556FRD 565introduction
Page 695 and 696:
Index 695sequencer 421serial port 5
Page 697 and 698:
Index 697program/operator controlov
Page 699 and 700:
Index 699timer on delay with reset
Page 701 and 702:
Pub. Title/Type Logix5000 Controlle
Page 705:
Rockwell AutomationSupportRockwell
show all

Logix5000 Controllers General Instructions - SLAC Confluence

Create successful ePaper yourself

Delete template?

Save as template?