Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | GE Fanuc / GE Intelligent Platforms |
| Model Number | IC698RMX016 |
| Product Type | Redundancy Memory Xchange Module |
| Product Family | PACSystems RX7i |
| Function | Reflective memory networking / CPU redundancy link |
| Reflective Memory Capacity | 16MB with parity |
| Network Interface | Fiber optic reflective memory link |
| Network Speed | 2.12 Gbaud |
| Data Transfer Rate | Up to 174 Mbps depending on packet size |
| Fiber Type | Multimode fiber |
| Maximum Network Distance | Up to approximately 300m |
| Network Nodes | Up to 256 nodes |
| Fiber Connector | LC type connector, IEC 61754-20 compliant |
| Backplane Power | +5VDC |
| Current Consumption | Approx. 1.8A |
| Mounting | Single RX7i rack slot |
| CPU Redundancy Support | Yes |
| Compatible Memory Network | VMIC 5565 family devices |
| Operating Temperature | -20°C to +85°C |
Product Introduction
GE IC698RMX016 Overview
The GE IC698RMX016 is a PACSystems RX7i Redundancy Memory Xchange Module designed for high-speed controller synchronization and deterministic data sharing. It operates as a node in a reflective memory network or as a dedicated communication link between redundant RX7i CPUs.
The GE IC698RMX016 uses fiber optic communication to distribute shared memory data between connected systems without requiring continuous CPU intervention. It is commonly installed in high-availability automation systems where controller synchronization and rapid failover capability are required.
IC698RMX016
Application Scenarios & Field Pitfalls (The Engineer’s Perspective)
Engineering Pain Point
A critical process controller fails, and the plant expects the standby CPU to take over immediately. The CPU hardware is healthy, but the redundancy link shows communication loss.
This type of failure is often traced back to the synchronization path rather than the controller itself. Fiber connections, module configuration, firmware compatibility, and network addressing all affect whether the redundant pair behaves correctly.
The IC698RMX016 is a specialized communication module. It is not a standard Ethernet or serial interface. Treat the reflective memory network as part of the control architecture.
Typical Applications
- Power Generation – Redundant RX7i controller systems for turbine auxiliary controls, boiler systems, and plant balance-of-system automation.
- Oil & Gas Facilities – High-availability PLC systems controlling compressors, pipeline equipment, and process units.
- Water Treatment Plants – Redundant control architectures for pumping stations and critical treatment processes.
- Manufacturing Systems – Multi-controller coordination where deterministic data exchange is required between automation computers.
Technical Pitfalls to Avoid
- Verify CPU Redundancy Firmware Compatibility
RX7i redundancy systems depend on matching CPU firmware, configuration files, and module revisions. Confirm the existing redundancy setup before replacing the RMX module.
- Inspect Fiber Optic Connections Carefully
Reflective memory communication depends on correct TX/RX fiber routing. A reversed fiber pair or contaminated connector can appear as a module failure.
- Confirm RMX Configuration Mode
The IC698RMX016 can operate as a reflective memory node or redundancy link. Configuration behavior differs between these modes, so confirm the intended application before commissioning.
Related Products
- GE IC698CMX016
Control Memory Xchange Module with similar reflective memory hardware. Used for deterministic data sharing but does not provide RX7i CPU redundancy functions. - GE VMIC VMIVME-5567
Reflective memory communication module compatible with the same general memory network technology. Used in VME-based systems requiring synchronized data exchange. - GE IC698PSA350
RX7i AC power supply module. Provides rack power for systems containing CPU and communication modules such as the . - GE IC698CRE030
RX7i redundancy CPU module used in high-availability controller configurations where RMX modules provide synchronization. - GE IC698CPE040
RX7i CPU module for standard control applications. Used in systems where redundancy communication requirements are lower. - GE IC698CHS009
RX7i 9-slot chassis used for mounting CPUs, communication modules, and I/O modules. - GE IC698ETM001
RX7i Ethernet module used for standard Ethernet communication between PLC systems and supervisory equipment. - GE IC695RMX128
PACSystems RX3i reflective memory module family. Used in newer controller platforms with similar data-sharing requirements.
