GE Fanuc IC695CRU320 RX3i Redundancy Switch Module

The GE Fanuc IC695CRU320 is a hot‑standby redundancy switch module for GE PACSystem RX3i PLC platform. It realizes high‑speed data synchronization between primary and standby CPU units, completes bumpless switch‑over upon main CPU failure, ensuring continuous system operation for high‑availability industrial control applications.

This rack‑slot module supports dedicated redundancy fiber connection, real‑time logic and memory mirroring, and fault diagnosis for redundancy link. It works in pairs with redundant CPU modules. It serves as critical aftermarket spare for maintenance, overhaul and retrofitting of power‑plant and process‑industry high‑reliability PLC cabinets.

Main Specifications

• Brand: GE Fanuc; Model:IC695CRU320; Type: RX3i Redundancy Switch Module
• Applicable System: GE PACSystem RX3i redundant PLC control system
• Interface: Redundancy fiber‑optic ports, RX3i back‑plane bus, status and fault diagnostic LED indicators
• Function: Primary‑standby CPU data synchronization, bumpless redundancy switch‑over, redundancy link monitoring and fault reporting
• Feature: Rack slot‑mount installation, high‑speed fiber mirroring, fault‑triggered automatic switch‑over, industrial‑grade anti‑interference design
• Installation: Slot‑mount inside RX3i redundant PLC chassis
• Power: Back‑plane powered; Operating Environment:0℃ ~ +60℃, 5%‑95% RH non‑condensing
• Certifications: CE compliant for high‑availability industrial automation applications

Core Functions

• Establish high‑speed fiber‑optic mirror link between primary and standby CPU modules for real‑time synchronization of logic state and process data.
• Monitor operating status of main CPU continuously; trigger bumpless automatic switch‑over to standby unit once main CPU fails.
• Keep I/O control state unchanged during switch‑over to avoid production interruption caused by single CPU hardware failure.
• Detect fiber link abnormality and module internal faults, send alarm information to PLC system for fault recording and operator notification.
• Front‑panel LED indicators display redundancy link status, master‑standby role and fault state for commissioning and daily troubleshooting.
• Standard slot‑in modular structure facilitates replacement during redundant PLC cabinet overhaul and on‑site maintenance work.

Application Scenarios

• Redundancy management core component for GE PACSystem RX3i hot‑standby redundant PLC systems.
• Critical spare‑part for power‑plant, water‑treatment and petrochemical high‑availability PLC control cabinets.
• Retrofit and spare replacement for legacy IC695CRU320 redundancy‑module high‑reliability‑system upgrade projects.
• Redundant PLC rack overhaul, redundancy‑link debugging and faulty switch‑module replacement tasks.
• Spare‑parts inventory for high‑availability automation integrators and energy‑industry engineering contractors.

• Global aftermarket spare supply for technical teams maintaining GE RX3i redundant automation hardware.