Allen Bradley 1756-RM2 ControlLogix Redundancy Module

Overview

The Allen Bradley 1756-RM2 is a ControlLogix redundancy module designed to manage system redundancy in ControlLogix architectures. It enables seamless synchronization between redundant controllers and power configurations, helping maintain high system availability and minimizing downtime in critical industrial automation processes.

General Information

Part Number: 1756-RM2

Manufacturer: Allen Bradley

Brand / Country of Origin: Allen Bradley / United States

Series: ControlLogix

Type: Redundancy Module

Mounting: Chassis-mounted installation

Application: System redundancy management for ControlLogix platforms

Technology: High-speed redundancy synchronization module with diagnostic monitoring

Power Specifications

Input Voltage: Powered via ControlLogix backplane

Power Consumption: Low backplane load

Function: Coordinates redundancy synchronization between ControlLogix systems

Protection Features: Internal fault isolation and system protection

Status Indicators: LED indicators for power, redundancy, and fault status

Communication & Interface

Interface Type: ControlLogix backplane communication

System Compatibility: ControlLogix redundant controller systems

Function: Manages real-time redundancy synchronization between modules

Diagnostics: Continuous system health and redundancy status monitoring

Configuration Requirements: No external configuration required

Environmental

Operating Temperature: 0 to +60 °C

Storage Temperature: −40 to +85 °C

Relative Humidity: 5–95% RH, non-condensing

Vibration Resistance: Industrial-grade durability for continuous operation

Protection Rating: IP20 when installed in chassis

Dimensions & Weight

Dimensions (L × W × H): 145.2 × 34.6 × 139.6 mm

Weight: 0.31 kg

High-Availability Control Starts with Reliable Redundancy!