Ramiro

Firstly, I want to thank everyone who answers very kindly, I will follow your advice to do a small calibration routine to create an offset Thank you, Ramiro

I'm use a V350-35-T2 and IO-AI4-AO2, and connect a pressure transmiter (2 wires) to AN0 (V350) (10 bit), the pressure transmitter range is 0-10 barg I configured the MI0 with parameters: 204 to 1023 and 0 to 1000 At atmospheric pressure the measure should be 0 barg/204 but in online test the measure of count is 203 I connected an ampherimeter to measure the real current and it measure 4 mA (in online test I read 203 count) I changed the connection of pressure transmitter to AI0 (12 bit) (of IO-AI4-AO2) and parameters now are: 819 to 1095 and 0 to 1000 I read at 4 mA 816 count, it is not correct measure (819) Any explanation about it? solution? Thank you PD: Excuse me about my bad English