GE IC698CMX016 VMIVME-5567-000 350-005567-000

Description

Product Description

The GE IC698CMX016 and VMIVME-5567-000 are high-performance reflective memory modules designed for real-time data sharing in distributed control, simulation, and data acquisition systems. The IC698CMX016 is GE’s PACSystems RX7i version, while the VMIVME-5567-000 is the VMEbus version of the same reflective memory technology. These modules enable multiple computers or controllers in a network to share a common memory space with extremely low latency and deterministic performance. The core function of these reflective memory modules is to create a distributed shared memory system where data written to the local memory of any node is automatically transmitted over a fiber optic network and written to the memory of all other nodes, without any software intervention. This hardware-based approach provides microsecond-level latency and deterministic timing essential for real-time applications. The GE IC698CMX016 integrates directly into PACSystems RX7i racks, while the VMIVME-5567-000 is designed for VMEbus systems. The additional part number 350-005567-000 represents a specific ordering code or revision. These modules are widely used in applications requiring high-speed, deterministic data sharing such as turbine control, simulation systems, and distributed test stands.

Product Parameters

• Model Numbers: GE IC698CMX016, VMIVME-5567-000, 350-005567-000
• Type: Reflective Memory Module
• Platforms: GE PACSystems RX7i (IC698CMX016) and VMEbus (VMIVME-5567-000)
• Function: High-speed deterministic data sharing between nodes
• Data Rate: 2.12 Gbaud over fiber optic
• Network Topology: Ring topology with node bypass capability
• Maximum Nodes: Up to 256 nodes
• Memory Size: Typically 64 MB or 128 MB SDRAM
• Interface: Fiber optic (duplex) for inter-node communication
• Software Model: Transparent to applications; data accessible through local memory
• Diagnostics: Front-panel LED status indicators
• Bus Interface: RX7i backplane for IC698CMX016; VMEbus for VMIVME-5567-000
• Operating Temperature: 0°C to 55°C (commercial)
• Certification: CE, FCC

Advantages and Features

The primary advantage of these reflective memory modules lies in their ability to provide extremely fast and deterministic data sharing between distributed nodes. Using the GE IC698CMX016 in PACSystems RX7i systems or the VMIVME-5567-000 in VMEbus systems, developers can create real-time clusters where data latency is measured in microseconds and is strictly deterministic. Hardware-based data transmission completely offloads inter-node communication tasks from the main processors, improving overall system performance. The ring topology with node bypass capability ensures high fault tolerance. The simple software model makes these modules very easy to use: data is simply read from and written to local memory, with propagation across the network happening automatically. This simplicity significantly reduces programming complexity compared to traditional networking approaches.

Application Cases in Application Fields

These reflective memory modules are widely used in applications requiring deterministic real-time data sharing.

• Turbine Control Systems: In power plants, multiple GE IC698CMX016 modules in PACSystems RX7i controllers share critical turbine data with microsecond latency, ensuring coordinated control of gas and steam turbines.
• Flight Simulators: In full-motion flight simulators, VMIVME-5567-000 modules in multiple VMEbus computers share motion, visual, and instrument data with deterministic timing.
• Physics Research: In experimental physics facilities, these modules distribute data from thousands of sensors across multiple processing nodes in real-time.
• Radar Signal Processing: In defense systems, reflective memory networks enable real-time distribution of radar data for processing.
• Steel Rolling Mills: In complex rolling mill control systems, GE IC698CMX016 modules ensure precise coordination of multiple drives and sensors.

Comparison with Competing Products

When compared to other high-speed interconnect technologies such as InfiniBand or proprietary reflective memory solutions from other manufacturers, GE’s reflective memory products offer specific advantages for users invested in GE’s automation ecosystem. The GE IC698CMX016 integrates directly with PACSystems RX7i racks, eliminating the need for external converters or adapters. Compared to standard Ethernet-based solutions, these modules provide deterministic latency that Ethernet cannot guarantee. For facilities with existing GE control systems, these reflective memory modules provide the most straightforward path to high-speed deterministic networking.

Selection Suggestions and Precautions

When selecting these reflective memory modules for your application, first verify that the GE IC698CMX016 is compatible with your PACSystems RX7i rack and power supply, or that the VMIVME-5567-000 is compatible with your VMEbus chassis. Determine the required memory size (64 or 128 MB) based on your application data requirements. When installing the modules, observe proper electrostatic discharge precautions. Pay careful attention to fiber optic cable handling, avoiding sharp bends and keeping connectors clean. When designing the network topology, consider the number of nodes and total fiber length. For fault-tolerant applications, take advantage of the node bypass capability. For critical systems, maintain a spare module on hand to minimize downtime in case of failure. Finally, document network configurations for future reference.

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