Why don’t you use the _B-CPU as the managing node and the _A-CPU as iCN? In one powerlin-network you can have only one managing node. And as I know the SL8100 needs to have to connected CPU (“B”) being a managing Node.
Depending on your requirement of the machine, “Open Safety Over UDP” could also solve your problem. With this you can simply connect Safe Nodes via Standard-Ethernet ports without Powerlink.
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