Omron NJ501-1500

2-393
2 Instruction Descriptions
NJ-series Instructions Reference Manual (W502)
Conversion Instructions
2
PIDAT
PIDAT
The PIDAT instruction performs PID control with autotuning (2-PID control with set point filter).
Instruction Name FB/FUN Graphic expression ST expression
PIDAT PID Control with
Autotuning
FB PIDAT_instance(
Run,
ManCtl,
StartAT,
PV,
SP,
OprSetParams,
InitSetParams,
ProportionalBand,
IntegrationTime,
DerivativeTime,
ManMV,
ATDone,
ATBusy,
Error,
ErrorID,
MV);
Variables
Name Meaning I/O Description Valid range Unit Default
Run Execution con-
dition
Input
TRUE: Execute
FALSE: Stop
Depends on data type.
---
FALSE
ManCtl Manual/auto
control
TRUE: Manual operation
FALSE: Automatic operation
StartAT Autotuning exe-
cution condition
TRUE: Execute
FALSE: Cancel
PV Process value Process value
*1
SP Set point Set point
OprSet
Params
Operation set-
ting parameters
Parameters set during opera-
tion
---
0
InitSet
Params
Initial setting
parameters
Initial setting parameters ---
Propor-
tional Band
Proportional
band
In-out
Proportional band 0.01 to 1000.00 % FS
---
Integration-
Time
Integration time Integration time
The higher the value is, the
weaker the integral action is.
No integral action is performed
for 0.
T#0.0000s to
T#10000.0000s
*2
s
Deriva-
tiveTime
Derivative time Derivative time
The higher the value is, the
stronger the derivative action is.
No derivative action is per-
formed for 0.
T#0.0000s to
T#10000.0000s
*2
ManMV Manual manip-
ulated variable
Manual manipulated variable −320 to 320 %
PIDAT
PIDAT_instance
Run ATDone
ManCtl ATBusy
StartAT Error
PV ErrorID
SP MV
OprSetParams
InitSetParams
ProportionalBand
IntegrationTime
DerivativeTime
ManMV