CI801 Connect to redundant Profibus.
According to ABB document (3BSE036351-600 page 176) I need CI801, TU806, TB842 and TB820.
I configure this solution in control builder and I added CI01 after CI840.
the last CI840 connected to redundant profibus and CI801 has single profibus port.
What hardware do I need for the connection between CI840s and CI801?
I need to use RLM-01
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