I had a question about thermocouples and analog card. I have a 1762-if20f2 and i am useing the outputs to control a vfd and i am trying to use the inputs to read a thermocouple. I have 6 heaters i am using on a blow molding machine 4 of the thermocouples are wired to a 1762-IT4 thermocouple card and 3 of the 4 are working the 4th i think is just a bad thermocouple. The other 2 thermocouples i have hooked up to a 1762-IF20f2. I dont know if i it setup wrong or it just wont work with thermocouples. Could someone give me some direction on how to use the analog card with a thermocouple. I know i should just buy another thermocouple card but if i could get the IF20f2 to work that would be better. Thank you.