Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 232

Process control function blocks

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Table of Contents

■Public variable (operation constant)

Derivative Gain

Large Deviation Alarm Hysteresis

Reverse Action/Direct Action

Tracking Flag

Setting Value (SV) Used

Setting Value (SV) Pattern

Output Conversion High Limit

Output Conversion Low Limit

*1 When 1 (tracking is executed) is set to the tracking flag, connect CASOUT_T of the primary loop with the input variable CASIN_T.

■Public variable (others)

• Simulation processing

Simulation Output

*1 Read or write the variables using a program. They are not displayed in "FB Property" of the engineering tool.

For details on tag data that is read or written with this tag access FB, refer to the following.

Page 507 PIDP

Processing details

■Deviation check

This function block performs deviation check processing.

|DV|  (DVL - DVLS)

DV: Deviation (%), DVLS: Large deviation alarm hysteresis (%), DVL: Deviation limit value (%)

10 LOOP CONTROL OPERATION

10.9 Position Type PID Control (Enable Tracking for primary loop/Disable Tracking from secondary loop) (M+P_PIDP_T)

0: Reverse action

1: Direct action

0: Not executed

TRUE: Not used

TRUE: Not primary MV

FALSE: Primary MV

-999999 to 999999

NMIN to NMAX

Large deviation (DVLA)

TRUE (Detected)

FALSE (Reset)

Initial value

Initial value