Contact Voltage?

[d4rkm4n 2]

Hi guys.

During trobuleshooting one of our machines, I found that some DI modules give 24VDC when contact is OFF and 0VDC when contact is ON.

Is there anywhere I can configure and change that setting?

Thanks.

[Gambit 279]

Which PLC are you using ? FX .. In that case it depeands on how the S/S is connected.

If you connect 24V to the s/s than you get an High signal when 0V is connected to the input.
If you connect 0V to the s/s than you get an High signal when 24V is connected to the input.