Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 438

■Public variable (others)
• Simulation processing
Variable name Description
SIMIN Simulation Input
SIMOUT_OPEN Simulation Output of Open Command Signal
SIMOUT_CLOSE Simulation Output of Close Command Signal
• Control mode change processing (MCHG function)
Variable name Description
MODEIN Mode Change Signal
E_ Enable Mode Change
*1 Read or write the variables using a program. They are not displayed on "FB Property" of the engineering tool.
■Tag data
For details on tag data that is read or written with this tag FB, refer to the following.
Page 553 PVAL
■Function of the components
This tag FB consists of the following function blocks.
Item
IN function
*1
PHPL function
MCHG function
*1 The high/low limit of engineering values are fixed to 100% and 0%.
Processing details
■Deviation check
• This function block performs deviation check processing.
DVL
0
-DVL
DVLA occur
Condition
DVL < |DV|
|DV|  (DVL - DVLS)
DV: Deviation (%), DVLS: Large deviation alarm hysteresis (%), DVL: Deviation limit value (%)
■PV tracking function
To avoid sudden changes of the manipulated value at mode switching (MAN  AUT/CAS/CSV), this function block matches
the setting value (target) with the process variable when the control mode is MAN and keeps the value.
Condition
When PVTRK_EN is TRUE and the control mode is "MAN"
When PVTRK_EN is FALSE and the control mode is other than "MAN"
12 LOOP TAG
436
12.39 Position Proportional Output (M+M_PVAL_T_)
*1
Function block
M+P_IN
M+P_PHPL
M+P_MCHG
DVLA reset DVLA occur DVLA reset
Recommended range
0 to 100
TRUE, FALSE
TRUE, FALSE
Recommended range
1 to 3, 5
1: MAN
2: AUT
3: CAS
5: CSV
TRUE: Execute
FALSE: Stop
Reference
Page 144 M+P_IN
Page 291 M+P_PHPL
Page 338 M+P_MCHG
DVLS
t
DVLS
Alarm (ALM)
Large deviation (DVLA)
TRUE (Detected)
FALSE (Reset)
PV tracking processing
Setting value (target) = Process variable
Non-processing
Initial Set by Data type
value
0.0 User REAL
FALSE System BOOL
FALSE System BOOL
Initial Set by Data type
value
1 User INT
FALSE User BOOL