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November 19th, 2013, 10:36 PM #1ZUDD Guest
Modbus - What is the Physical Connection?
Modbus RTU uses RS-485 or RS-232.
Modbus TCP uses Ethernet.
If you are looking for a Control Solutions gateway, you will need to pick the model that matches the electrical interface of the equipment you want to connect.
If you are choosing a Control Solutions I/O device, pick one that matches your network.
Last edited by ZUDD; November 20th, 2013 at 01:12 PM.