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Great! Thank you for your answer.
But can RLM01 be used in S7-400H?
How to integrate it to the Hardware Configuration of S7-400H?
The RLM01 is, from master perspective, just a "normal" repeater. You can incorporate it in the network properties where you set the number of repeaters. Just to be safe, you can compare the delay times (stated in the manual) with the Siemens RS-485 repeater.
You want to use it for Siemens cpu.
Do you have a redundant S7-400H?
What kind of profibus remote I/O's are in use for your
I think that siemens have the same module under other brand/name