M7 488.3 stop

Dear Sir

I am almost facing the same problem with some HW  diffrances as I am my CPU is M7 488.3 (SAS)

My system was built on NT (old system ) all are operating OK with the old HMI running under NT.

last January we upgraded the HMI machines to Windows 7 with the latest WINCC 7.3 update 11. and updated the WINCC project.

Now Only one of the two M7 CPU keep stopping every week. I noticed that I dont have OB82 and can not install it ad in SAS you can only insert DB and not OB.

Attached is the Diagnostic buffer file for your ref. 

Please advice and help

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Split from Simatic CPU 315-2DP (STOP caused by diagnostic interrupt (OB not loaded or not possible, or no FRB).