Allen-Bradley 1756-IT6I Thermocouple Input Module

The Allen-Bradley 1756-IT6I is a six-channel, isolated thermocouple input module for ControlLogix systems, designed to sit in a 1756 I/O backplane and provide independently isolated measurements for each thermocouple input. It delivers ITS-90 thermocouple linearization with built‑in cold‑junction compensation, enabling accurate temperature readings across a broad range of sensor types. The module accepts thermocouples of B, E, J, K, R, S, T, N, C, D, and L (TXK/XK), making it suitable for diverse industrial temperature monitoring tasks, from high-temperature furnaces to precision process control. Each of the six inputs is isolated to minimize ground loops and noise in wiring, with a 16‑bit resolution. The standard input range is -12 to 78 mV, while a high‑resolution range covers -12 to 30 mV, providing finer voltage-to-temperature conversion in critical applications. A 20‑pin interface on the module supports its wiring and integration into existing ControlLogix racks. This module is ideal for applications requiring reliable, per‑channel thermocouple sensing in automated manufacturing, energy, and process-control environments, where accurate, multi‑point temperature data is essential for control loops and safety interlocks.