Allen-Bradley 1756-RMC3 Redundancy Module

Series#: AllenBradley

Product Details

1756-RMC3 – High-performance ControlNet Redundancy Module for Allen-Bradley ControlLogix systems.
Ensures seamless system uptime with automatic media and module fault tolerance.
Supports redundant media configurations for enhanced network reliability.
Hot-swappable design minimizes downtime during maintenance or upgrades.
Integrates directly with 1756 chassis and ControlLogix 5580 controllers.
Ideal for mission-critical applications in oil & gas, power generation, and process control.
100% Genuine and New, rigorously inspected before international dispatch.

Specification

The Allen-Bradley 1756-RMC3 is a ControlNet Redundancy Module engineered for the ControlLogix platform, providing robust network fault tolerance in industrial automation environments. Designed to maintain continuous communication between controllers and remote I/O, the 1756-RMC3 supports redundant media paths and automatic switchover, ensuring zero data loss during cable or module failures. This module is essential for applications demanding high availability, such as refineries, water treatment, and manufacturing lines. With its hot-swappable capability and direct chassis integration, the 1756-RMC3 simplifies system maintenance while maximizing uptime. Below are the detailed technical specifications for this redundancy module.

Specification	Details
Product Type	ControlNet Redundancy Module
Compatible Platform	Allen-Bradley ControlLogix (1756 chassis)
Network Protocol	ControlNet (Coax or Fiber)
Redundancy Mode	Media and Module Redundancy (A/B pairs)
Maximum Nodes Supported	99 nodes per ControlNet segment
Data Rate	5 Mbps (ControlNet standard)
Media Types	RG-6 coax cable or fiber optic (via adapters)
Power Consumption	2.5 W typical (5 VDC from backplane)
Backplane Current	500 mA at 5 VDC
Operating Temperature	0°C to 60°C (32°F to 140°F)
Storage Temperature	-40°C to 85°C (-40°F to 185°F)
Relative Humidity	5% to 95% non-condensing
Vibration Resistance	2 g Standard Models 10-500 Hz (operating)
Shock Resistance	30 g (operating), 50 g (non-operating)
Redundancy Switchover Time	Typically < 20 ms (automatic)
LED Indicators	Module Status, Network Status, Link A, Link B
Module Dimensions (H x W x D)	144 mm x 35 mm x 118 mm (5.67 x 1.38 x 4.65 in)
Weight	Approx. 0.23 kg (0.51 lb)
Certifications	UL, CSA, CE, ATEX (Zone 2), cULus
Warranty	1 year (manufacturer standard)
Shipping Condition	100% Original and New, factory-sealed, ready for global shipment