4-20 mA signal to IFM DP2200

[idir93]

Hello,

I have an Oxygen sensor that outputs a 4 -20 mA signal. I also have an IFM DP2200 to receive the signal on the PLC side.

I am having trouble to understand how to wire them together.

The DP2200 is supposed to supply power (24 vdc) to the sensor. However, the sensor already receives its power from a different power supply (12vdc).
See below diagrams.

Regards,