Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 268

■Public variable (operation constant)
Variable Description
name
DVLS Large Deviation Alarm Hysteresis
PN Reverse Action/Direct Action
SVPTN_B0 Setting Value (SV) Used
■Tag data
For details on tag data that is read or written with this tag access FB, refer to the following.
Page 511 SPI
Processing details
■Deviation check
This function block performs deviation check processing.
DVL
0
-DVL
Condition
DVL < |DV|
|DV|  (DVL - DVLS)
DV: Deviation (%), DVLS: Large deviation alarm hysteresis (%), DVL: Deviation limit value (%)
10 LOOP CONTROL OPERATION
266
10.14 Sample PI Control (Disable Tracking for primary loop) (M+P_SPI)
DVLA DVLA DVLA
occur reset occur
Recommended
range
0 to 100
0: Reverse action
1: Direct action
TRUE: Not used
FALSE: Used
DVLS
t
DVLS
DVLA
reset
Alarm (ALM)
Large deviation (DVLA)
TRUE (Detected)
FALSE (Reset)
Initial value Set by
2.0 User
0 User
TRUE User
Data type
REAL
INT
BOOL