Abby Posted August 4, 2022 Report Share Posted August 4, 2022 Hello, I'm using the V120-22-RA22 plc, I have switches connected to some inputs then connected to a 24V power source. But when running the plc, with the switches to test it, they are not responding. My guess that I would need to connect the CM, but I'm not sure. I checked the jumpers and they are all set to be digital inputs. Any advice would help, I'm not very familiar with this plc. Thanks, Abby Moore Quote Link to comment Share on other sites More sharing options...
MVP 2023 kratmel Posted August 4, 2022 MVP 2023 Report Share Posted August 4, 2022 Please read user manual and set needed input to Normal Digital input mode via Jamper inside PLC. After that check JP12 position - it must be set as PNP Quote Link to comment Share on other sites More sharing options...
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