Mitsubishi Melsec-L Series User Manual page 180

(5) Program example
The following shows a sample program that clears the open error code of the connection number 1 (when the I/O
signals of the E71 are X/Y00 to X/Y1F).
178
Specify the open abnormal code of
connection 1.
Specify the error code clear.
Execute the ERRCLR instruction.
Process upon completion
(Error information is cleared.)
Process upon abnormal end