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With regard to an NJ EtherCAT network, all comms cables are shielded, but where should the shield connect to ground? I don't measure any connection between PE or FG on the NJ's power supply to the outer casing of the EtherCAT port on the NJ. (No connection to the Ethernet/IP port either.) I am also using a GX-JC06 junction slave, and none of the outer casings on this unit connect to ground either. On Omron G5 servo controllers, the EtherCAT link in and out port casings do not connect to ground either, but they ARE connected together, which means that the shielding path is maintained through. Is the grounding somehow made through active components, instead of a direct passive connection?