General Electric IC695RMX128 Redundancy Memory Exchange Module – RX3i PACSystem

Product Overview

The General Electric IC695RMX128 is a key component of the PACSystems RX3i series by Emerson Automation. This Redundancy Memory Exchange Module ensures high availability and fault tolerance by synchronizing data between two redundant RX3i CPUs.

In redundant CPU configurations, this module allows seamless data exchange across devices. It operates on a 2.12 Gbaud fiber-optic network, supporting up to 256 nodes. This module enables efficient real-time data updates, reducing the risk of downtime.

Key Features

• High-Speed Data Transfer: The IC695RMX128 features a 2.12 Gbaud fiber-optic network, allowing for rapid and reliable data transfer. This network supports both high-speed and long-distance communication.
• Memory Capacity: With 128 MB SDRAM, this module provides sufficient storage for memory exchange, ensuring smooth operation in complex systems.
• Redundant CPU Link: It facilitates synchronization between two RX3i CPUs. If one CPU fails, the other immediately takes over, ensuring continuous operation.
• Network Configuration: IC695RMX128 can be configured to support up to 256 nodes in a fiber-optic daisy-chain network. It detects errors in real time, making the system more reliable.
• Hot Insertion and Removal: This module supports hot insertion and removal, which allows for maintenance without turning off the power. This feature minimizes downtime.

Specifications

Functionality

The IC695RMX128 serves two main functions:

1. Redundancy Support: It links two RX3i CPUs for seamless operation. The module mirrors the IC695CMX128 memory and ensures synchronization between the two CPUs.
2. Reflective Memory Network: It supports a reflective memory network, meaning changes on one node are reflected across all other connected nodes. This feature enhances system consistency and data integrity.

Installation and Setup

• Network Configuration: To establish redundancy, the IC695RMX128 requires a primary RMX unit and a secondary RMX unit. These units must be connected using fiber-optic cables, forming a 2-node ring for redundancy.
• Programming: You can easily configure the module using programming software. This eliminates the need for manual jumper or DIP switch settings, simplifying the process.
• Hot Insertion: The module supports hot insertion, meaning you can insert it into the system without turning off the power. This reduces downtime and allows for quick updates.

Why Choose the IC695RMX128?

• High Reliability: The IC695RMX128 ensures continuous data synchronization between redundant CPUs, thanks to its 128 MB SDRAM and high-speed fiber-optic communication.
• Scalability: This module supports up to 256 nodes, making it ideal for large systems that need efficient data sharing.
• Reduced Downtime: With hot insertion/removal capability, the module minimizes system downtime during maintenance.
• Error Detection: The network error detection feature provides early warnings of issues, preventing potential system failures.