QUESTION:
Why doesn't the M7 run up?

ANSWER:
After powering up, the M7 boots normally but at the end of the boot operation it goes to stop. S7-CPUs have a different timing behavior. It is possible that the M7-CPU was addressed too early from the S7.

Remedy:
When errors occur, the program processing of the OB1 should be delayed for approx. 10s.

If the standard Press2000 software is used, the following program sequence should be inserted at the beginning of the OB1:

UN	DB_GLOBDAT.initial	//DB96.DBX6.0
L	S5T#10S
SE	T 5	//use a free timer
UN	DB_GLOBDAT.initial	//DB96.DBX6.0
UN	T 5	//use a free timer
BEB