Hello Experts!

Facing the same problem in CPU 416 5H PN/DP redundant system.The set PG/PC interface is OK. I'm uploading the station to PG and also monitor online the program from accessible nodes. Shows this error, when I try to online monitor from OB1,

Urgent Support needed!

Thanks

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Split from CPU 319-3 PN/DP Communication error.

Closed cause question posted twice.

The second thread with the subject S7-400H - Problem while going online monitor from OB1 it gives following error: Module CPU 416 5H PN DP is not obtainable via the address set is published within the conference Communication / Networks.

Best regards
Jen_Moderator