ControlLogix Thermocouple Input Module | 1756-IT6I2

Allen-Bradley 1756-IT6I2 ControlLogix Thermocouple Input Module

The 1756-IT6I2 by Rockwell Automation is a 6-channel isolated thermocouple input module with 2 built-in CJC sensors. It delivers high-precision temperature measurement with 16-bit resolution and supports 11 thermocouple types. Designed for ControlLogix systems, this module offers advanced noise rejection and flexible data formats for industrial automation applications.

TECHNICAL SPECIFICATIONS

• Brand: Allen-Bradley (Rockwell Automation)
• Model: 1756-IT6I2 (Full suffix: IT6I2 - 2 indicates dual CJC sensors)
• Inputs: 6 isolated thermocouple channels + 2 CJC
• Resolution: 16-bit (0.7µV/bit in high-res range)
• Input Range: -12 to 78mV / -12 to 30mV
• Accuracy: ±0.3°C (CJC)
• Isolation: 120V AC/DC overvoltage protection
• Noise Rejection: 60dB normal mode, 160dB common mode

KEY FEATURES

• Wide thermocouple support: B, C, D, E, J, K, L, N, R, S, T types
• Dual CJC sensors: Ensures measurement accuracy
• Flexible data formats: Integer or 32-bit floating point
• Advanced diagnostics: Wire break detection, over-range alarms

INSTALLATION GUIDE

• Terminal block: Requires 1756-TBNH (included)
• Chassis compatibility: ControlLogix standard or distributed I/O
• Power requirements: 5V (200mA) / 24V (150mA)

TYPICAL APPLICATIONS

• Steel production temperature monitoring
• Plastic extrusion process control
• Power plant boiler systems

PACKAGE CONTENTS

• 1756-IT6I2 module
• 1756-TBNH terminal block
• Installation manual

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