Siemens SIMATIC S7-1200 Function Manual page 10

Table of contents
9.2.5 PID_3Step V1 ....................................................................................................................... 341
9.2.5.1 Description PID_3Step V1 ................................................................................................... 341
9.2.5.2 Operating principle PID_3Step V1 ....................................................................................... 347
9.2.5.3 PID_3Step V1 input parameters .......................................................................................... 350
9.2.5.4 PID_3Step V1 output parameters ........................................................................................ 352
9.2.5.5 PID_3Step V1 static tags ..................................................................................................... 354
9.2.5.6 Parameter State and Retain.Mode V1 ................................................................................. 361
9.2.5.7 Parameter ErrorBits V1 ........................................................................................................ 369
9.2.5.8 Parameter Reset V1 ............................................................................................................ 371
9.2.5.9 Tag ActivateRecoverMode V1 ............................................................................................. 372
9.2.5.10 Tag Warning V1 ................................................................................................................... 374
9.2.5.11 Tag SUT.State V1 ................................................................................................................ 375
9.2.5.12 Tag TIR.State V1 ................................................................................................................. 375
9.3 PID_Temp ............................................................................................................................ 376
9.3.1 New features of PID_Temp .................................................................................................. 376
9.3.2 Compatibility with CPU and FW ........................................................................................... 376
9.3.3 CPU processing time and memory requirement PID_Temp V1 .......................................... 377
9.3.4 PID_Temp ............................................................................................................................ 378
9.3.4.1 Description of PID_Temp ..................................................................................................... 378
9.3.4.2 Mode of operation of PID_Temp .......................................................................................... 383
9.3.4.3 Input parameters of PID_Temp ............................................................................................ 389
9.3.4.4 Output parameters of PID_Temp ......................................................................................... 391
9.3.4.5 In/out parameters of PID_Temp V2 ..................................................................................... 393
9.3.4.6 PID_Temp static tags ........................................................................................................... 395
9.3.4.7 PID_Temp state and mode parameters ............................................................................... 430
9.3.4.8 PID_Temp ErrorBits parameter ............................................................................................ 439
9.3.4.9 PID_Temp ActivateRecoverMode tag .................................................................................. 442
9.3.4.10 PID_Temp Warning tag ........................................................................................................ 444
9.3.4.11 PwmPeriode tag ................................................................................................................... 445
9.3.4.12 IntegralResetMode tag ......................................................................................................... 447
9.4 PID basic functions .............................................................................................................. 449
9.4.1 CONT_C ............................................................................................................................... 449
9.4.1.1 Description CONT_C ........................................................................................................... 449
9.4.1.2 How CONT_C works ............................................................................................................ 450
9.4.1.3 CONT_C block diagram ....................................................................................................... 452
9.4.1.4 Input parameter CONT_C .................................................................................................... 453
9.4.1.5 Output parameters CONT_C ............................................................................................... 454
9.4.2 CONT_S ............................................................................................................................... 455
9.4.2.1 Description CONT_S ............................................................................................................ 455
9.4.2.2 Mode of operation CONT_S ................................................................................................. 456
9.4.2.3 Block diagram CONT_S ....................................................................................................... 457
9.4.2.4 Input parameters CONT_S .................................................................................................. 458
9.4.2.5 Output parameters CONT_S ................................................................................................ 459
9.4.3 PULSEGEN .......................................................................................................................... 460
9.4.3.1 Description PULSEGEN ...................................................................................................... 460
9.4.3.2 Mode of operation PULSEGEN ........................................................................................... 461
9.4.3.3 Mode of operation PULSEGEN ........................................................................................... 464
9.4.3.4 Three-step control ................................................................................................................ 465
9.4.3.5 Two-step control................................................................................................................... 468
9.4.3.6 Input parameters PULSEGEN ............................................................................................. 469
9.4.3.7 Output parameter PULSEGEN ............................................................................................ 470
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Function Manual, 03/2017, A5E35300227-AC
PID control