GE IC695RMX128 Redundancy Memory Exchange Module

Description

The GE IC695RMX128 is a Redundancy Memory Exchange Module from the PACSystems RX3i series by GE Fanuc Automation. It is designed primarily to facilitate memory sharing and synchronization between redundant RX3i CPUs, functioning within high availability and fault-tolerant automation systems.

Key Features:

• Memory: 128 MB of SDRAM memory dedicated for redundancy synchronization.
• Communication: Uses a high-speed fiber-optic network with single-mode LC type connectors, providing transmission speeds up to 2.12 Gbaud (approx. 2.1 Gbits/s).
• Topology: Supports reflective memory topology enabling data updates across up to 256 connected nodes.
• Power Requirements: Requires 580 mA at 3.3 VDC and 220 mA at 5 VDC.
• Hot Insertion/Removal: Supports hot swapping without interrupting system power, which is crucial for maintenance and upgrades in live industrial environments.
• Compatibility: Compatible with IC695CMX128 (main memory exchange counterpart) and IC695RMX228 (single-mode fiber version).
• Network Error Detection: Provides diagnostics to detect network errors and maintain communication integrity.
• Usage: Exclusively used for redundancy memory exchange in redundant controller configurations, not general-purpose memory exchange.
• Distance: Maximum distance between redundant controllers is around 300 meters over fiber optic.

Technical Specifications:

Application:

The IC695RMX128 is essential in critical industrial environments where high availability and system redundancy are required to minimize downtime. It enables seamless real-time data synchronization between redundant CPU pairs, ensuring continuous control system operation even in fault conditions.

Installation and Maintenance:

• Fits into a single RX3i module slot.
• Installation requires fiber optic cabling with LC connectors following IEC standards.
• Known for low insertion loss (max 0.35 dB) and high return loss (-30 dB or better) for signal integrity.
• Requires compatible CPUs supporting redundancy and proper configuration via programming software.
• Maintenance involves routine visual inspection of fiber connections, diagnostic monitoring for errors, and firmware update support through Proficy Machine Edition.

The GE IC695RMX128 comes with standard GE warranty and global support, with detailed documentation available for installation, configuration, and troubleshooting. It is critical for fault-tolerant PACSystems RX3i configurations in manufacturing, power generation, and other automation-intensive industries.The GE IC695RMX128 is a Redundancy Memory Exchange Module from the PACSystems RX3i series. It provides 128 MB of shared SDRAM memory and is designed to enable high-availability data synchronization between redundant RX3i CPUs.

Key features:

• 128 MB SDRAM user memory
• Single-mode fiber-optic connection using LC type connectors
• High-speed communication at 2.12 Gbaud (2.1 Gbit/s)
• Supports up to 256 nodes in a reflective memory network
• Hot insertion and removal capability for maintenance without shutdown
• Network error detection for communication integrity
• Compatible with IC695CMX128 and IC695RMX228 modules
• Maximum cable length between redundant controllers up to 300 meters
• Occupies one RX3i module slot
• Operates with 580 mA at 3.3 VDC and 220 mA at 5 VDC power

This module is specifically designed for redundancy applications where continuous, synchronized data sharing between CPU pairs is critical. It is widely used in industrial automation environments requiring fault-tolerant control systems to minimize downtime.

Installation requires fiber optic cabling per IEC standards and configuration with compatible CPUs supporting redundancy. Maintenance includes routine diagnostic checks and firmware management through programming software.

This module is supported by GE’s warranty and global technical assistance ensuring reliable performance in high availability automation systems.The GE IC695RMX128 is a 128 MB Redundancy Memory Exchange (RMX) Module from the PACSystems RX3i series. It provides high-speed reflective memory synchronization between redundant RX3i CPUs via single-mode fiber optic connections (LC type). Operating at 2.12 Gbaud, it supports up to 256 nodes in a network, enabling real-time data sharing for fault-tolerant, high availability control.

Key specifications:

• 128 MB SDRAM user memory
• Single-mode fiber-optic LC connectors
• Transmission speed: 2.12 Gbaud (approx. 2.1 Gbit/s)
• Hot insertion/removal supported
• Network error detection for communication reliability
• Compatible with IC695CMX128 and IC695RMX228 modules
• Max distance between redundant controllers: 300 meters
• Power: 580 mA at 3.3 V DC, 220 mA at 5 V DC
• Occupies 1 RX3i module slot

The IC695RMX128 is essential for redundant CPU configurations ensuring seamless data synchronization and system reliability in mission-critical industrial automation applications. Installation requires fiber optic cabling per IEC standards, and maintenance includes diagnostic monitoring and firmware updates.