connect Siemens field PG M6 to S5-100U CPU 103

I have the same problem - after trying to connect Siemens field PG M6 to S5-100U  CPU 103 no connection can be establish, in STEP5 v7.23 the message come out "PLC in cycle - stack output stopped". I have been switching between all available com ports in STEP5.

Also I have an old PG720P with STEP5 v7.02 - it connects easily with its old cable and new cable from PG M6 as well.

As  for the article "Error message: "PLC in cycle, stack output aborted" when setting up an online connection from a Field PG to an AG100U" that fritz advised - there is no Logitech folder in my PG M6 registry.

The problem must be on PG side.

Please suggest a possible solution.

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Split from S5 115U connect online error.