Ny-Series Instructions Reference Manual (W560 - Omron NY532-5400 Reference Manual

 Autotuning Canceled
• In the following figure, the value of ManCtl is FALSE, so the value of MV will be StopMV as long
as the value of Run is FALSE.
• When the value of Run changes to TRUE, MV is output based on the PID constants.
• Autotuning is executed when the value of StartAT changes to TRUE. The value of ATBusy
changes to TRUE.
• Autotuning is canceled if the value of StartAT changes to FALSE during autotuning. The value of
ATBusy changes to FALSE.
• After autotuning is completed, MV is output based on the PID constants from just before
autotuning was started.
• When the value of Run changes to FALSE, the value of MV changes to StopMV.
• The value of ATDone does not change to TRUE because autotuning was aborted.
Run
ManCtl
StartAT
ATBusy
ATDone
Error
Upper limit of limit cycle MV
Lower limit of limit cycle MV
Heating/cooling PID processing

NY-series Instructions Reference Manual (W560)

TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
PV
SP
MV
StopMV
Autotuning
Autotuning canceled.
The PID constants from before
autotuning was started are set.
2 Instruction Descriptions
Time
Time
MV set to StopMV.
2
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