Hi!
PLC model is in the post title (USC-B10-T42) and I'm only using onboard I/O, no additional modules.
The 3-wire proximity sensors I'm using are PNP. From SMC and the P/N is D-M9P.
I currently have V0 from the power supply connected to the COM0 port to set the inputs up as sink wiring for pnp sensors. So, when sensor sees the actuator piston, it lights up and I measure 24V between the black signal wire and the COM0 terminal. However, the input status LED does not light up on the PLC and the bit in the software does not toggle to 1.
Hmmm.
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Matt