GE Fanuc IC695RMX228 Redundancy Memory Module Overview

The GE Fanuc IC695RMX228 is a redundancy memory module for the RX3i PacSystems series. It functions as a reflective memory device in control networks. This module also serves as a link in hot standby CPU redundancy systems. The IC695RMX228 is identical to the IC695CMX128/228 modules in form and function. It connects through a fiber-optic network using LC type connectors. These connectors feature zirconium ceramic ferrule construction for reliable signal transmission.

Technical Specifications

The GE Fanuc IC695RMX228 offers substantial memory capacity for demanding applications. User memory is 128 MB of SDRAM for data storage and sharing. Packet size is dynamic and controlled by the RMC128 or RMX228 module itself. Resolution reaches 32 bits for each of the 4 networks. Therefore, total data throughput is significant for high-speed applications. The module supports up to 256 nodes per network in reflective memory configurations.

Now consider the power requirements for this module. Input current draws 580 mA at 3.3 VDC from the backplane. It also draws 220 mA at 5 VDC simultaneously. Ensure your RX3i power supply can handle these combined loads. Network error detection is built into the IC695RMX228 for data integrity. Hot insertion and removal are fully supported without powering down the rack. This feature simplifies maintenance and system expansion.

Redundancy & Network Configuration

The GE Fanuc IC695RMX228 excels in hot standby CPU redundancy systems. These systems connect two CPUs where one works as the primary controller. The other CPU functions as an identical backup device. The module includes a role switch for configuration purposes. Through this switch, you set the IC695RMX228 as the main module or as the backup module.

However, note an important limitation. When the IC695RMX228 serves as a link in a redundancy system, it cannot act as a general-purpose memory exchange module. The network is fully configurable for your specific application needs. Up to 6 memory exchange modules can be installed in a single RX3i rack. This includes the IC695RMX228 and similar modules.

Key Features & Benefits

• Large reflective memory – The IC695RMX228 provides 128MB SDRAM for data sharing.

• High node capacity – Supports up to 256 nodes on each reflective memory network.

• Four independent networks – Each network delivers 32-bit resolution for parallel data transfer.

• Hot insertion support – Install or remove the IC695RMX228 without system shutdown.

• Built-in error detection – Network error detection ensures data integrity across the fiber link.

• Role switch selector – Easily configure the module as main or backup device.

Fiber Optic Connection Details

The GE Fanuc IC695RMX228 uses fiber-optic cables for network communication. LC type connectors provide secure and low-loss connections. The zirconium ceramic ferrule ensures precise fiber alignment. Fiber optic transmission offers complete electrical isolation between nodes. Consequently, this eliminates ground loop problems and noise interference. Use only compatible fiber optic cables with the IC695RMX228 for best performance.

Installation Guidelines

Follow these steps to install the GE Fanuc IC695RMX228 correctly. First, power down the RX3i rack if hot insertion is not planned. Second, select an available slot in the rack for the module. Third, align the IC695RMX228 with the card guides in the chassis. Fourth, push the module firmly into the backplane connector until seated. Fifth, secure the module with the retaining screws at top and bottom. Finally, apply power and verify the status indicators show normal operation.

Set the role switch before inserting the IC695RMX228 into the rack. Choose Main or Backup based on your redundancy architecture. Connect the fiber optic cables to the LC ports after installation. Do not bend fiber cables beyond their minimum radius specification.

Package Contents

Your shipment includes the following items:

• 1 x GE Fanuc IC695RMX228 redundancy memory module

• 1 x Quick start guide with basic configuration steps

• 2 x LC dust caps for fiber port protection

• 1 x Role switch label for identification

No fiber optic cables are included with the IC695RMX228. Therefore, you must order these separately based on your distance requirements. No programming software is provided in this package.

Frequently Asked Questions (FAQ)

1. Is the IC695RMX228 compatible with the IC695CMX128?
Yes. The GE Fanuc IC695RMX228 is identical to the IC695CMX128/228 modules. They can be used interchangeably in the same system.

2. How many RMX228 modules can I install in one rack?
Up to 6 memory exchange modules can be installed in a single RX3i rack. This includes the IC695RMX228 and other compatible modules.

3. Can I use this module for general data exchange?
No. When the IC695RMX228 serves as a redundancy link, it cannot perform general-purpose memory exchange. Use it only for hot standby redundancy.

4. What happens during a failover event?
The backup CPU takes over immediately. The IC695RMX228 continues data reflection without interruption. Your control process sees no noticeable delay.

5. Does the IC695RMX228 support hot replacement?
Yes. The GE Fanuc IC695RMX228 supports hot insertion and removal. You can replace a faulty module without powering down the entire system.

Why Choose the GE Fanuc IC695RMX228?

This redundancy memory module delivers reliable reflective memory for RX3i systems. For starters, the IC695RMX228 provides 128MB SDRAM for robust data sharing. It supports up to 256 nodes per network with 32-bit resolution across four networks. The fiber-optic connection using LC zirconium ceramic ferrules ensures signal integrity. Furthermore, hot insertion support reduces maintenance downtime significantly. Built-in network error detection protects your data during transmission. The IC695RMX228 includes a convenient role switch for main or backup configuration. Most importantly, it enables seamless hot standby CPU redundancy for critical processes.

Order the GE Fanuc IC695RMX228 today for your RX3i redundancy application. This module is perfect for power generation, water treatment, and continuous manufacturing processes that cannot tolerate downtime.