Yokogawa digitalYEWFLO (DY-FF) User Manual

Page 5

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IM 01F06F00-01EN

APPENDIX 7. LINK MASTER FUNCTIONS ....................................................A7-1

A7.1 Link

Active

Scheduler.................................................................................... A7-1

A7.2 Link

Master

..................................................................................................... A7-1

A7.3

Transfer of LAS .............................................................................................. A7-2

A7.4 LM

Functions

.................................................................................................. A7-3

A7.5 LM

Parameters

............................................................................................... A7-4

A7.5.1

LM Parameter List ............................................................................A7-4

A7.5.2

Descriptions for LM Parameters ......................................................A7-6

A7.6 Trouble

Shooting

........................................................................................... A7-8

APPENDIX 8. PID BLOCK ................................................................................A8-1

A8.1 Function

Diagram

.......................................................................................... A8-1

A8.2

Functions of PID Block .................................................................................. A8-1

A8.3

Parameters of PID Block ............................................................................... A8-2

A8.4

PID Computation Details ............................................................................... A8-4

A8.5 Control

Output

................................................................................................ A8-4

A8.6

Direction of Control Action ........................................................................... A8-4

A8.7 Control

Action

Bypass

.................................................................................. A8-5

A8.8 Feed-forward

.................................................................................................. A8-5

A8.9 Block

Modes

................................................................................................... A8-5

A8.10 Bumpless

Transfer

......................................................................................... A8-6

A8.11 Setpoint

Limiters

............................................................................................ A8-6

A8.11.1 When PID Block is in AUTO Mode ..................................................A8-6
A8.11.2 When PID Block is in CAS or RCAS Mode......................................A8-6

A8.12 External-output

Tracking

.............................................................................. A8-7

A8.13 Measured-value

Tracking

.............................................................................. A8-7

A8.14

Initialization and Manual Fallback (IMAN) ................................................... A8-7

A8.15 Manual

Fallback

............................................................................................. A8-8

A8.16 Auto

Fallback

.................................................................................................. A8-8

A8.17

Mode Shedding upon Computer Failure ..................................................... A8-8

A8.18 Alarms

............................................................................................................. A8-9

A8.18.1 Block

Alarm

(BLOCK_ALM)

.............................................................A8-9

A8.18.2 Process

Alarms

................................................................................A8-9

A8.19 Example of Block Connections ............................................................................. A8-10

APPENDIX 9. DD MENU ...................................................................................A9-1
APPENDIX 10. METHOD ................................................................................A10-1

A10.1 Transducer

Block

......................................................................................... A10-1

A10.2 Enhanced

AR

Block

..................................................................................... A10-5

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