Allen-Bradley 1756-IT6I2 | ControlLogix Thermocouple Analog Input Module

Overview

The Allen-Bradley 1756-IT6I2 is a high-performance ControlLogix analog input module for industrial process automation.

It provides six individually isolated thermocouple and millivolt input channels, ensuring precise temperature measurement and control.

Compatible thermocouple types include B, E, J, K, R, S, T, N, C, D, and L (TXK/XK).

The module comes with two integrated cold junction compensation (CJC) sensors for accurate temperature readings.

With 16-bit resolution, it achieves input ranges from -12 to 78 mV, ensuring high accuracy in critical applications.

The 1756-IT6I2 supports both integer and floating-point data formats, allowing flexible integration into ControlLogix systems.

Key Features

• Brand: Allen-Bradley

• Model: 1756-IT6I2

• Series: ControlLogix

• Module Type: Analog Thermocouple Input Module

• Inputs: 6 Isolated Thermocouple Channels, 2 CJC Sensors

• Supported Thermocouple Types: B, C, D, E, J, K, L, N, R, S, T

• Input Resolution: 16-bit

• Data Format: Integer or IEEE 32-bit Floating Point

• Backplane Current: 5V – 200 mA, 24V – 150 mA

• Max Power Dissipation: 4.6 Watts

• Module Scan Time: 10–50 ms depending on input type

• Removable Terminal Block: 1756-TBNH

• Thermal Dissipation: 15.7 BTU/hr

• Noise Rejection: 60 dB normal mode, 160 dB common mode

Technical Specifications

Advantages

• Provides precise analog temperature measurements with 16-bit resolution.

• Supports a wide variety of thermocouple types for versatile applications.

• Individually isolated channels prevent cross-channel interference and noise.

• Includes integrated CJC sensors for accurate thermocouple compensation.

• Flexible data formats allow integer or floating-point processing.

• Robust industrial design ensures reliable operation in harsh environments.

FAQ

Q1: Is the Allen-Bradley 1756-IT6I2 brand new?
A1: Yes, it is fully new and original from Allen-Bradley.

Q2: How many thermocouple inputs does this module support?
A2: The module has six isolated thermocouple inputs and two CJC sensors.

Q3: What thermocouple types are compatible?
A3: It supports B, C, D, E, J, K, L, N, R, S, T types.

Q4: What is the input resolution?
A4: It offers 16-bit resolution for precise temperature measurement.

Q5: Which terminal block is required for wiring?
A5: Only the 1756-TBNH removable terminal block is compatible.

Q6: What is the maximum power consumption of the module?
A6: The 1756-IT6I2 consumes up to 4.6 Watts under full load.

Q7: Can it be used in high-noise industrial environments?
A7: Yes, it has 60 dB normal-mode and 160 dB common-mode noise rejection.