Mitsubishi Electric MELSEC iQ-R-R00CPU, Руководство пользователя

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28 FUNCTIONS
28.11 RAS Function
28.11
RAS Function
Clearing errors on the standby system CPU module from the
control system CPU module
Errors on the standby system can be cleared from the control system CPU module by using SM1679 (Error reset (the other
system)) in programs or external devices.
Error clearing procedure
Use SM1679 to clear errors.
1.
Eliminate the causes of all the continuation errors that have occurred on the standby system.
2.
Turn off and on SM1679 of the control system CPU module to clear the errors. When multiple continuation errors have
occurred, all the errors are cleared at once.
Precautions
• Error clear operation with SM1679 can be performed by the control system CPU only. A continuation error on the standby
system CPU module cannot be cleared by turning off and on SM1679 of the standby system CPU module.
• Error clear operation with SM1679 can be performed in backup mode only.
• The cause of an error which has occurred in a module other than the target CPU module for the error clear cannot be
eliminated even though the error is cleared using SM1679.
• If the error cause is not eliminated after the error clear operation, the same error is detected again.
• The error clear processing is performed in the END processing. To clear an error, execute the END instruction while
SM1679 is on.