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I need to know where to look to find the pinout for a Modbus cable 9-pin D connector for the Modbus port on a Momentum or Quantum plc. I've searched the modicon site and got no answers. The only helpful info I found is that they recommend a Belden 8777 cable whic is a three pair cable. How many of those conductors are actually needed to successfully interface with the modbus port connector on the plc?
Thanks for the help.
Thanks for the help.