NPIX-4DI4DO and NetPi-Nodered container issues

[Armin@netPI]

There is one more question.

I see yout NPIX module is powered well based on the green LED PWR.

What is if you connect the 24V DC for powering the module also to IN1 directly and do not use the sensor during this test. What happens to the GPIO input value in Node-RED or the console using the "cat ..." command then?

Also ... have you ever measured 24V DC coming out of the sensor signal in order to trigger the IN 1 input well ... or at least any voltage between the sensor pin and GND?

Also ... DIO of NPIX are using a CLT3-4B current limiter IC which needs to have all the signals have a common ground COM. Does your sensor that you have connected to the NPIX has the same 0V/GND potential as used for NPIX for the 0V / 24 V combo and are you using the same 24V DC power supply for the sensor?

Here is a copy of the NPIX manual ... The current flow measured and triggering the input is like this

   

So if sensor and NPIX do not have the same GND then no current flow would be possible.