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Author Topic: ModBus as a Input Signal  (Read 1642 times)

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ModBus as a Input Signal
« on: July 29, 2021, 08:06:31 PM »

I set up the ModBus and everything is all green and happy.

Then I go into the Control Configuration / Input Signals and the drop down for devices has my ModBus, great! I select it. Then I click on the Input Name and I get an empty list.

What am I missing? I can access the values via scripts but I really want them as first class Input Signals and I can't seem to get it to work.

Thanks for the help!
Re: ModBus as a Input Signal
« Reply #1 on: July 30, 2021, 03:31:49 PM »
OK, what is missing from the documentation is that ONLY coils and discrete i/o can be used as I/O for Mach4.