Allen-Bradley 1756-IT6I Analog Isolated Input Module

The Allen-Bradley 1756-IT6I is a ControlLogix analog input module with six individually isolated thermocouple/mV input channels for temperature sensing. Each input is independently isolated from the backplane and from the other channels, and the module supports thermocouple types B, E, J, K, R, S, T, N, C, D, and L, with cold junction compensation included. The standard input range is -12 to 78 mV and -12 to 30 mV in high-resolution mode, with a 16-bit measurement resolution per channel. The module uses a 20-pin interface and is documented as part of the 1756 ControlLogix analog I/O family; it integrates with Rockwell's Studio 5000/Logix Designer software for configuration and data handling. Advanced features in the IT6I family include real-time sampling, optional notch filtering, and temperature linearization, with cold-junction temperature tracking available on the IT6I and IT6I2 variants.