Sinumerik Alarm 109004 No switchover: PLC occupied by higher-priority MMC’s


Sinumerik Alarm 109004 No switchover: PLC occupied by higher-priority MMC’s

Definitions:
The MMC is attempting to switch to an NCU that is occupied by two higher-priority MMC’s.

Reactions:
– –

Remedy:
Switch one of the two higher-priority MMC’s to another NCU.

Program Continuation:
Internal

References

  1. Siemens Diagnostics Guide by Siemens
Sinumerik Alarm 109004 No switchover: PLC occupied by higher-priority MMC’s