v120-22-ra22 Inputs not responding

[Abby]

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 

[kratmel]

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