Mitsubishi Electric MELSEC-Q series Programming Manual page 75

[OPERATION ERRORS]
An operation error will occur, the error flag (SM0) will be turned ON, and an error code will be stored in SD0, in the following
cases.
Error code Description
4100 When the value set as the PID control data is outside the allowable range.
4100 When (Number of loops used) < (Number of loops executed in one scan).
4100 When (MV upper limit value) < (MV lower limit value).
4101 When the device range allocated to the PID control data area, designated by
device.
9 COMPLETE DERIVATIVE PID CONTROL INSTRUCTIONS AND PROGRAM EXAMPLES
, exceeds the last device number of the corresponding
S
9.1 PID Control Instructions
9
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