Remedy:
No switchover: Target PLC used, try again
MMC would like to go online to this NCU.
MMC has called the target PLC and is awaiting acknowledgement.
MMC bekommt keine Quittung, da die MMC-Parameter-Schnittstelle in DB19 von einem anderen MMC belegt ist.
Repeat the operation at a later point in time, as the MMC parameter interface in DB19 is only temporarily occupied.
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