Allen-Bradley 1757-SRM | ControlLogix/ProcessLogix Redundancy Module

Overview

The Allen-Bradley 1757-SRM provides high-availability redundancy for ControlLogix and ProcessLogix systems, ensuring minimal downtime and reliable system performance. Its compact design fits seamlessly into standard ControlLogix chassis, optimizing installation space and accessibility.

Connectivity and Interfaces

This module uses an SC connector type with a single fiber-optic channel capable of both transmit and receive operations. It supports 62.5/125-micron multi-mode fiber-optic cables, providing secure and fast communication for industrial automation applications.

Supported Controllers and Modules

The 1757-SRM integrates with 1756-L61, L62, L63, and L64 controllers. It is compatible with multiple communication modules including 1756-CNB Series D/E, 1756-CNBR Series D/E, 1756-ENBT, and 1756-EWEB, ensuring flexibility across diverse network configurations.

Redundancy and Failover

Designed for continuous operation, the 1757-SRM includes failover mechanisms that automatically switch to the backup communication channel if the primary channel fails. This ensures uninterrupted control and maintains critical system integrity under all conditions.

Industrial Robustness

Engineered for harsh industrial environments, the 1757-SRM withstands extreme temperatures, vibration, and electrical noise. Its durable design guarantees high reliability and precision for applications that demand maximum uptime.

Key Features

• Single SC fiber-optic channel for transmit and receive operations.

• Supports multiple ControlLogix controllers (1756-L61 to L64).

• Compatible with key communication modules, including 1756-CNB, CNBR, ENBT, and EWEB.

• Automatic failover ensures continuous operation during faults.

• Compact, chassis-mounted design for easy integration.

• High reliability in harsh industrial environments.