MVP 2021 Ausman Posted July 24, 2013 MVP 2021 Report Share Posted July 24, 2013 Hi all, I know this is a dumb question, but I am considering using Modbus on a job. I have never had to use it before, with components normally fairly close together and direct IO being perfectly adequate. I have read far and wide about cable requirements and need some advice from those who regularly use it. To do a run of 40m max, am I going to get away with Cat5 in a fairly noise-free environment? Using one pair as signals and another commoned as the ground, with the other two pairs perhaps being used as 24dc digital IOs or as spares. I guess I am really asking what types of cables have people used for what distances? V130 as controller, speed isn't that important but it has to be reliable. Cheers from Mr Modbus-Know-Nothing-but-Learning-Fast! Quote Link to comment Share on other sites More sharing options...
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