User Manual

iv
IM 21B04C01-01E
13.5 IO_OPTS and STATUS_OPTS ........................................................................ 13-2
13.6 Mode Shedding upon Computer Failure .....................................................13-3
13.7 Initialization at Start ........................................................................................ 13-3
13.8 Alarm Processing ..........................................................................................13-3
14. DI Function Block .................................................................................. 14-1
14.1 General .............................................................................................................14-1
14.2 Modes ...............................................................................................................14-1
14.3 PV Value (PV_D) ..............................................................................................14-1
14.4 Filtering ............................................................................................................ 14-1
14.5 Output ............................................................................................................... 14-2
14.6 IO_OPTS and STATUS_OPTS ........................................................................ 14-2
14.7 Alarm Processing ..........................................................................................14-2
14.7.1 Block Alarms ....................................................................................14-2
14.7.2 Discrete Alarm .................................................................................. 14-2
15. OS Function Block ................................................................................. 15-1
15.1 General .............................................................................................................15-1
15.2 Modes ...............................................................................................................15-1
15.3 Output Processing ..........................................................................................15-1
15.4 Backward Path (BKCAL_OUT) ..................................................................... 15-2
15.5 STATUS_OPTS ...............................................................................................15-2
15.6 Alarm Processing ..........................................................................................15-2
16. PID Function Block ................................................................................ 16-1
16.1 General .............................................................................................................16-1
16.2 Modes ...............................................................................................................16-1
16.3 Input Processing ............................................................................................. 16-1
16.4 Setpoint (SP) Limiters .................................................................................... 16-1
16.5 PID Computation .............................................................................................16-2
16.6 Control Output .................................................................................................16-2
16.7 Direction of Control Action ............................................................................16-2
16.8 Control Action Bypass ...................................................................................16-2
16.9 Feed-forward ................................................................................................... 16-3
16.10 External-output Tracking (LO) .......................................................................16-3
16.11 Measured-value Tracking ...............................................................................16-3
16.12 CONTROL_OPTS ............................................................................................16-3
16.13 Initialization and Manual Fallback (IMan) ..................................................... 16-4
16.14 Manual Fallback ..............................................................................................16-4
16.14.1 STATUS_OPTS ............................................................................... 16-4
16.15 Auto Fallback ...................................................................................................16-4
16.16 Mode Shedding upon Computer Failure ......................................................16-4
16.17 Alarms ..............................................................................................................16-5
16.17.1 Block Alarm (BLOCK_ALM) ............................................................. 16-5
16.17.2 Process Alarms ................................................................................16-5