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Precautions
• The instruction can be executed multiple times (no limit in the number of loops). However, be careful not to duplicate (S3)
used for operation and the device number specified by (D).
Operation error
• In any of the following cases, an operation error occurs, the error flag (SM0) turns ON, and an error code is stored into SD0.
Error
Error details
code
4101
The device specified by (S3) exceeds the range of the number of device
points.
9100
A data error occurred in the control parameter setting values or during PID
operation because the sampling time (T
9101
A data error occurred in the control parameter setting values or during PID
operation because the input filter constant () is out of the target range (<0
or 100).
9102
A data error occurred in the control parameter setting values or during PID
operation because the proportional gain (K
(K
<0).
P
9103
A data error occurred in the control parameter setting values or during PID
operation because the integral time (T
9104
A data error occurred in the control parameter setting values or during PID
operation because the derivative gain (K
201 K
).
D
9105
A data error occurred in the control parameter setting values or during PID
operation because the derivative time (T
) operation cycle
9106
Sampling time (T
S
9107
Rate of change in the process value went out of the range (PV<-32768 or
32767<PV).
9108
Error value went out of the range (EV<-32768 or 32767<EV).
9109
Integrally calculated value went out of the range (from -32768 to 32767).
9110
Derivative value went out of the range because derivative gain (K
of the range.
9111
Derivatively calculated value wend output of the range (from -32768 to
32767).
9112
PID operation result went out of the range (from -32768 to 32767).
9113
PID output upper limit setting value<output lower limit setting value
9114
Error in the setting value of alert for rate of change in PID input or in the
setting value of alert for rate of change in output(setting value<0)
9115
The result of auto tuning by the step response method is improper as
follows.
• The error at the start of auto tuning is 150 or less.
• The error at the end of auto tuning is 1/3 of that at the start of auto tuning.
9116
A mismatch occurred in the action direction of auto tuning by the step
response method.
• A mismatch occurred between the action direction assumed from the
process value at the time of starting auto tuning and the direction actual
action by auto tuning output.
9117
Auto tuning by the step response method is faulty as follows.
• Auto tuning failed to operate correctly because the set value fluctuated
during auto tuning.
9118
Auto tuning by the limit cycle method resulted in an error in the values set for
auto tuning output as follows.
• ULV (upper limit) LLV (lower limit)
9119
Auto tuning by the limit cycle method resulted in an error in the values set for
the auto tuning PV threshold (hysteresis) as follows.
• SH
<0
PV
9120
Auto tuning by the limit cycle method resulted in an error in the auto tuning
transition status as follows.
• The data in the device that controls the transition status has been rewritten
abnormally.
0).
) is out of the target range (T
s
s
) is out of the target range
P
) is out of the target range (T
<0).
I
I
) is out of the target range (K
<0 or
D
D
) is out of the target range (T
<0).
D
D
) went out
D
Q00J/
QnH
QnPH
QnPRH
Q00/
Q01
7 APPLICATION INSTRUCTIONS
QnU
LCPU
731
7.18 PID Instruction
7
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