If the PCD3.Mxx7 or PCD2.M5547 has a Profibus configuration it goes often in Stop after startup
The OB 86 has to be programmed
If there is a Profibus configuration on the PCD3.Mxxx or on the PCD2.M5547 the CPU goes often in STOP after startup. On a older CPU the same project worked without problems.
The new systems are faster than the old ones. Therefore it happens quite often that the CPU is already in RUN and the Profibus is not yet ready. Therefore the CPU goes in STOP.
To avoid this problem we recommend programming the OB86. In case of a Profibus error this OB is called and the CPU does not go into STOP.
xx7 Series / Communication
Last update: 24.05.2015 09:59
First release: 01.04.2009 14:13