mehdi_khosh
Member
hi every body
we have a S7-400 (S7-414H) PLC that controls the comprossor.
It has changed it's mode from RUN to DEFECTIVE,and diagnostic buffer showes this message:
memory test error in internal memory
No relevance for user (Z1): f1bc
Previous operating mode: RUN (redundant mode)
Requested operating mode: DEFECTIVE
Event occurred in the standby CPU in rack 1
Internal error, Incoming event
Please help me to find out the cause of the problem and give me the relevant solution to solve the problem.
With the best regards
we have a S7-400 (S7-414H) PLC that controls the comprossor.
It has changed it's mode from RUN to DEFECTIVE,and diagnostic buffer showes this message:
memory test error in internal memory
No relevance for user (Z1): f1bc
Previous operating mode: RUN (redundant mode)
Requested operating mode: DEFECTIVE
Event occurred in the standby CPU in rack 1
Internal error, Incoming event
Please help me to find out the cause of the problem and give me the relevant solution to solve the problem.
With the best regards
