Mitsubishi Electric MELSEC Q Series Reference Manual page 339

8 TROUBLESHOOTING
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(c) For a multiplexed remote I/O network that supports redundant systems
Monitor the operating status of the remote I/O station for which
error cancellation is performed. (In this program, station No. 2
to 5 are monitored.)
MELSEC-Q
Operation for error
cancellation
Turns OFF SB000F after
confirming error cancellation.
Cancels Blown fuse error
of control system CPU.
Cancels Blown fuse error
of standby system CPU.
Cancels I/O module
verification error of control
system CPU.
Cancels I/O module
verification error of
standby system CPU.
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