Yokogawa Wireless Temperature Transmitter YTA510 - Manual (Page 4)

3
IM 01C50T02-01E
Appendix 4. PID Block ...................................................................................A4-1
A4.1 Function Diagram .......................................................................................... A4-1
A4.2 Functions of PID Block .................................................................................. A4-1
A4.3 Parameters of PID Block ............................................................................... A4-2
A4.4 PID Computation Details ............................................................................... A4-4
A4.4.1 PV-proportional and -derivative Type PID (I-PD) Control
Algorithm ..........................................................................................A4-4
A4.4.2 PID Control Parameters ...................................................................A4-4
A4.5 Control Output ................................................................................................ A4-4
A4.5.1
Velocity Type Output Action .............................................................A4-5
A4.6 Direction of Control Action ........................................................................... A4-5
A4.7 Control Action Bypass .................................................................................. A4-5
A4.8 Feed-forward .................................................................................................. A4-5
A4.9 Block Modes ................................................................................................... A4-5
A4.9.1
Mode Transitions .............................................................................A4-6
A4.10 Bumpless Transfer ......................................................................................... A4-6
A4.11 Setpoint Limiters ............................................................................................ A4-6
A4.11.1 When PID Block Is in Auto Mode .....................................................A4-6
A4.11.2 When PID Block Is in Cas or RCas Mode .......................................A4-7
A4.12 External-output Tracking .............................................................................. A4-7
A4.13 Measured-value Tracking .............................................................................. A4-7
A4.14 Initialization and Manual Fallback (IMan) .................................................... A4-8
A4.15 Manual Fallback ............................................................................................. A4-8
A4.16 Auto Fallback .................................................................................................. A4-8
A4.17 Mode Shedding upon Computer Failure ..................................................... A4-9
A4.17.1 SHED_OPT......................................................................................A4-9
A4.18 Alarms ............................................................................................................. A4-9
A4.18.1 Block Alarm (BLOCK_ALM) .............................................................A4-9
A4.18.2 Process Alarms ................................................................................A4-9
A4.19 Example of Block Connections .................................................................. A4-10
A4.19.1 View Object for PID Function Block ...............................................A4-10
Appendix 5. Link Master Functions .............................................................A5-1
A5.1 Link Active Scheduler.................................................................................... A5-1
A5.2 Link Master ..................................................................................................... A5-1
A5.3 Transfer of LAS .............................................................................................. A5-2
A5.4 LM Functions .................................................................................................. A5-3
A5.5 LM Parameters ............................................................................................... A5-4
A5.5.1
LM Parameter List ............................................................................A5-4
A5.5.2 Descriptions for LM Parameters ......................................................A5-6
A5.6 FAQs ................................................................................................................ A5-9
Revision Information ...............................................................................................i