Modbus/TCP in I/O Controller2 and IP Relay HWg-ER02b

We have already covered  Modbus/TCP in Poseidon2 and Damocles2 units here: https://hw-group.us/support/modbustcp-in-poseidon2-and-damocles2-family. Now let us have a look at Modbus/TCP in I/O Controller2 and IP Relay HWg-ER02b units that also support it.

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