I'm still getting accustomed to 4-20 mA loops, and our setup is several sensors (multiple pressure, one flow, and oxygen) wired into an NI 9923 terminal block that is then inserted into the NI 9208 current input module. My two questions are 1) If I'm running a two-wire 4-20 mA loop into the module, should it be run with the negative wire inserted into one of the Vsup terminals and the positive inserted into an analog input terminals? 2) Since it has 16 channels, am I limited to 16 different devices or is it possible to share terminals?
Thank you for the help! The pin diagrams aren't the easiest to follow for a novice.