hi HBCM_,

it depends on the sensor that is connected, not on the output of the sensor.

The difference between 2-Wire and 4-wire-transducers is that the 2-wire-transducers have their power supply through the measurement-wires. Thats the reason why only 4..20mA-range can be used with it.

2-Wire-transducers need the measurementrange-module in D

4-Wire-transducers need the measurementrange-module in C

You can find this information in following manual:

SIMATIC S7-400 Automation System Module Data

 hope this helps,

regards,

Hello HBCM;

The following table is extracted from the manual suggested by our friend mopS04 earlier.

Examine the "unit Decimal" (raw value) colums and compare them with the related values of temperature, in ºC, in ºF and in degrees K for a RTD.

Hope this helps,

Daniel Chartier