Allen Bradley 1756-IR6I ControlLogix Isolated RTD Input Module

Overview

The Allen Bradley 1756-IR6I is a ControlLogix isolated RTD input module designed for precise temperature measurement in industrial automation systems. It supports multiple RTD sensor types and provides accurate, stable temperature data acquisition with strong electrical isolation. The module is widely used in process control, energy systems, and manufacturing environments where reliable temperature monitoring is critical.

General Information

Part Number: 1756-IR6I

Manufacturer: Allen Bradley

Brand: Allen-Bradley

Country of Origin: United States

Series: ControlLogix

Type: Isolated RTD Input Module

Module Category: Analog Input Module (RTD)

Number of Channels: 6 Isolated Inputs

Sensor Types: RTD (Pt100, Pt1000, and compatible types)

Mounting: ControlLogix Chassis Installation

Terminal Block Compatibility: 1756-TBCH, 1756-TBS6H

Power Specifications

Input Type: RTD Resistance Signal

Backplane Current Draw (5.1 V DC): Approx. 250 mA

Backplane Current Draw (24 V DC): Approx. 2 mA

Power Dissipation: Approx. 5 W

Isolation Voltage: 250 V Continuous

Power Source: ControlLogix Backplane

Status Indicators: Channel Status and Module Health LEDs

Communication & Interface

Input Channels: 6

Channel Isolation: Individually Isolated Inputs

Connection Method: Removable Terminal Block

Data Interface: ControlLogix Backplane Communication

Diagnostics: Open-circuit, short-circuit, and over-range detection

System Compatibility: ControlLogix Controllers and I/O Chassis

Signal Processing: High-precision temperature conversion and filtering

Environmental

Operating Temperature: 0°C to +60°C

Storage Temperature: -40°C to +85°C

Relative Humidity: 5% to 95% RH, Non-Condensing

Shock Resistance: Industrial Grade

Vibration Resistance: Suitable for Industrial Applications

Protection Rating: Open-Type Equipment for Enclosed Cabinets

Dimensions & Weight

Dimensions (H × W × D): 144.57 × 22 × 105.42 mm

Weight: 0.272 kg

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