voltage sensor to high voltage relay

Other Hardware Sensors
1

Hello, I have a device (A) which outputs a constant voltage of 14VDC and switches to 24VDC when a programmed value is read by it.

I want to feed this as an input to a PLC unit (B). The trouble is the PLC simply reads input voltage as 0=0 or "value"=1. I cannot specify a voltage threshold on the input sensor.

I was hoping to interrupt the output device (A) with a voltage sensor in combination with a high voltage relay which would send the signal to B as 14=0; 24=1.

Is this achievable?

2

What has this got to do with Arduino?

3

I was gonna use an arduino as the logic unit between the voltage sensor and relay.