Analoge value temperature

Hello

I have a temperature sensor connected to an AM2 module of a LOGO. The sensor has a range of -10 to 70°C and sends out a signal of 4 - 20mA. When I go online in the LOGO the analoge input shows a value of 0 to 1000. This signal goes to a PI-block. I also want to read out the value of the temperature on the LOGO. I can read out a value but it isn't the correct one. The value on the screen is the input value of the PI-block corrected with the gain and the offset.

I want to know which gain andoffset or range I should use to get the correct value or how I can find these values.

Thanks