A-B 1756-RM2 ControlLogix Redundancy Module

Product Overview
The Allen-Bradley 1756-RM2 is a ControlLogix Enhanced Redundancy Module used to synchronize and manage redundant ControlLogix controller chassis. A redundant system normally uses one 1756-RM2 in each chassis, connected through 1756-RMCx redundancy cables.

Technical Specifications

• Model: 1756-RM2
• Series: ControlLogix
• Type: Enhanced Redundancy Module
• Communication: Fiber optic
• Channels: 2
• Transmission Speed: Up to 1000 Mbps
• Connection Cables: 1756-RMC1 / RMC3 / RMC10
• Slot Width: 1 ControlLogix chassis slot
• Supported Controllers: ControlLogix 5570 / 5580
• Compatible Chassis: 1756-A4, A7, A10, A13, A17
• Backplane Current: 1.16 A @ 5.1 VDC
• 24 VDC Current: 3.4 mA
• Maximum Power Dissipation: 6 W
• Operating Temperature: 0 to 60°C
• Approx. Weight: 0.29 kg
• Enclosure: Open-style

Advantages & Features

• Provides high-availability controller redundancy
• Synchronizes redundant ControlLogix chassis
• 1 Gbps fiber-optic redundancy communication
• Supports fast controller/chassis switchover
• Compatible with ControlLogix 5570 and 5580 platforms
• Single-slot chassis installation
• Designed for continuous-operation industrial systems

Applications

• Process control systems
• Oil & gas facilities
• Power generation
• Chemical plants
• Manufacturing automation
• Critical infrastructure
• High-availability DCS/PLC systems