Allen-Bradley 1769-IR6 | CompactLogix RTD / Resistance Input Module

Product Overview

The 1769-IR6 is an Allen-Bradley CompactLogix RTD/Resistance Input Module with six individually configurable channels. It supports resistance input signals and RTD measurements, including Platinum, Nickel, and Nickel-Iron sensors, with ranges from 0 to 150 Ohms up to 0 to 3000 Ohms.

This module interfaces with a 1769 CompactLogix chassis or MicroLogix 1500, providing precise digital conversion of analog data for industrial control applications. Each channel features over- and under-range detection, open- and short-circuit monitoring, and built-in status LEDs for real-time feedback.

Technical Specifications

• Manufacturer: Rockwell Automation / Allen-Bradley

• Brand: Allen-Bradley

• Part Number/Catalog No.: 1769-IR6

• Product Type: RTD / Resistance Input Module

• Product Line: CompactLogix

• Product Family: Compact I/O

• Module Type: RTD Module

• Input Type: Resistance

• Number of Inputs: 6

• Supported Sensors: Platinum 385, Platinum 3916, Nickel 672, Nickel 618, Nickel-Iron 518

• Resistance Signals: 150 ?, 500 ?, 1000 ?, 3000 ?

• Communication Cable: 6 Point

• Compatible Controllers: MicroLogix 1500; CompactLogix

• Current Draw: 100 mA @ 5.1V, 35 mA @ 24V

• Heat Dissipation, Max: 1.5 W

• Nonlinearity: ±0.05%

• Repeatability: ±0.01 °C for Ni/NiFe, ±0.2 °C for other RTDs

• Wire Size (Solid): 22–14 AWG

• Open Circuit Detection Time: 6 ms to 303 s

• Converter Type: Sigma Delta

• Replacement Terminal Block: 1769-RTBN18

• Shipping Weight: 2 lbs

• Shipping Dimensions: 8 × 8 × 5 in

• Module Dimensions: 1.38 × 3.43 × 4.65 in

• Recommended Cable: 2-wire: Belden 9501, 3-wire: Belden 9533, 4-wire: Belden 83503

Key Features

• Six Independent Channels: Each input configurable for different sensor types and resistance ranges

• High Precision Measurement: Sigma-Delta converter ensures accurate digital data conversion

• Comprehensive Protection: Supports open/short-circuit, over- and under-range detection per channel

• Flexible Mounting: Compatible with DIN rail or panel mounting

• Robust Industrial Design: Withstands shocks up to 40 G, vibrations up to 5 G, and 5–95% non-condensing humidity

• Compact Form Factor: Fits a single CompactLogix slot while providing maximum functionality

Applications

The 1769-IR6 module is ideal for:

• RTD and resistance signal measurement in industrial automation

• Integration into CompactLogix and MicroLogix 1500 control systems

• Process control requiring high accuracy and channel-specific protection

• Harsh environments with mechanical shock, vibration, and temperature variation

• Applications needing reliable six-channel analog input for monitoring and control