Hello, I also have a similar setup and since you configured yours, thought you could help me too. I have a s7-410E station and a standalone TIM 4R-IE. I set up an other station as master in the Simatic Manager and am trying to communicate but there's no communication. In the diagnostics it says that the subscriber is not available for the other station.

Could you please help me out.

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Split from TIM 4R-IE DNP3 / Time synchronization problem.