The VME5565 (VMIVME-5565-010000) is a Reflective Memory (RFM) VME node card originally developed by VMIC and later supported by GE Intelligent Platforms and Abaco Systems. It enables deterministic, real-time data sharing between multiple computers or controllers by maintaining a synchronized shared memory space over a fiber-optic network.
Reflective memory technology ensures that any data written by one node is automatically replicated to all other nodes at the hardware level, without operating system involvement. This guarantees predictable timing and ultra-low latency, making the VMIVME-5565 well suited for mission-critical distributed control, simulation, and real-time computing systems.
| Category | Parameter | Specification |
|---|---|---|
| Communication | Technology | Reflective Memory (RFM) |
| Communication | Link Type | Fiber-optic serial link |
| Communication | Serial Link Speed | 2.12 Gbaud |
| Communication | Sustained Data Throughput | Up to 170 MB/s |
| Communication | Node-to-Node Latency | 450–500 ns |
| Communication | Maximum Nodes | Up to 256 |
| Communication | Network Topology | Ring or star (with ACC-5595 hub) |
| Communication | Interrupt Support | Hardware interrupts between nodes |
| Communication | Error Handling | Built-in detection and correction |
| Memory | Onboard Memory | 128 MB SDRAM |
| Memory | Memory Access | Deterministic shared memory |
| Memory | Data Synchronization | Automatic hardware replication |
| Memory | Software Overhead | None required |
| Fiber Optics | Multimode Fiber Distance | Up to 300 m |
| Fiber Optics | Single-Mode Fiber Distance | Up to 10 km |
| Fiber Optics | Signal Integrity | Optical isolation, EMI-immune |
| Mechanical | Form Factor | VME bus board |
| Mechanical | Category | PLC / Machine Control Add-On Board |
| Mechanical | Weight | 1.50 lb (0.68 kg) |
| Environmental | Operating Temperature | 0 °C to +55 °C |
| Environmental | Storage Temperature | −20 °C to +70 °C |
| Environmental | Humidity | 10%–90% RH, non-condensing |
| Compliance | Regulatory | RoHS compliant |
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