Analog Input Module 8 channels. 8 differential input channels for thermocouple/mV. Channel 8 can be designated as the CJ-channel (4-wire Pt100 RTD), Variety of thermocouples with the following characteristics: B, C, E, J, K, N, R, S and T for AI835A also D, L and U, 15 Bit resolution (A/D), Inputs are monitored for wire-break open-circuit.