AC500-eCo PM564-T-ETH Inputs not getting high
I am testing PM564 PLC on modbus TCP. From Codesys i m able to trigger a output but not able to read inputs. In the PLC itself when i give +24V DC to a input terminals, no indications are getting high. I have connected the M terminal of IO board to M of DC output.
What is wrong. Please Assist.
Thanks in advance.
Voted best answer
Just connect M (-24VDC) to the terminal 1=C0..5 and DI will be activated when apply +24VDC to them.
Terminal 12 is -24VDC for AI, it should be connected to M as in your picture
Also you need to connect L+ to terminal 19 and M to terminal 20 in order to activate transistor DO