Dear Christoph,

[snip] ...

I would like you ask one more question for this project.

Now all profibus is ok.

If I connect  PC and PLC with ethernet(lan cable), I could not see on line DCM drive but able to see online CU320 2DP s120 drive.

If I using DCM drive with CB20E connection card to PC, still DCM drive could not see online.

Please advise me.

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Split from Profibus communication with S7 300 to CU320 2DP.