Hi Sheperd, Thanks for your reply,it works now. I had some problems, but it must have been due to a poor knowledge of Ethercat. It is the first time that I work with this bus. Can you explain the basic best practices to me? I tried to connect another device to configure it. But it's not possible by disconnecting the rest of the network right? With other buses, if slaves are missing it does not matter, we can still configure other slaves, but with Ethercat it automatically takes the address of another module? Can you confirm? Does an industrial switch that works for Profinet also works for Ethercat or do we have to use specific switches for Ethercat? If I understood correctly each time I want to add a slave, all the slaves must be connected, I must pass the master in Pre-Op, then connect the new slave. Scan device, add slave, load config and go back to OP? Thanks, Kevin.
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