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Phone: +86 16626708626Description
Product Model: GE IC695CMX128-EG
Product Brand: GE Fanuc / Emerson PACSystems
Product Series: RX3i
Product Features:
- Control Memory Xchange module enables high-speed data sharing across PLC networks
- Uses reflective memory technology for deterministic exchange across multiple nodes
- Single-slot form factor for easy integration in RX3i racks
- 128 MB SDRAM with dynamic packet sizing supports robust real-time applications
Technical Specifications
| Specification | Description |
|---|---|
| Product Model | GE IC695CMX128-EG |
| Brand | GE Fanuc / Emerson PACSystems |
| Series | RX3i PACSystems |
| Module Type | Control Memory Xchange (Reflective Memory) |
| Memory Capacity | 128 MB SDRAM |
| Slot Requirement | Single slot in RX3i backplane |
| Bus Speed | ~2.1 Gbps reflective memory network link speed |
| Packet Size | Dynamic packet sizing (~4–68 bytes) |
| Connectors | Fiber optic LC type |
| Power Requirements | From backplane (typical values per module class) |
| Network Nodes | Up to 256 possible network nodes |
| Diagnostic LEDs | Indicators for status & communication health |
| Operating Environment | Industrial rated for PLC systems |
- IC695CMX128-EG
Technical Features & Benefits
The GE IC695CMX128-EG is engineered around a reflective memory core that prioritizes speed and determinism. The 128 MB SDRAM memory area provides ample space to exchange control data, status flags, and even small buffers of process values across connected nodes. Reflective memory, by design, propagates write operations immediately to all nodes in the same network, ensuring synchronized information across PLCs and devices.
A standout characteristic of this module is its high-speed fiber-optic interface. The reflective memory network operates over fiber optic cabling using LC-type connectors, conforming with industrial fiber standards. This approach not only increases bandwidth but also improves immunity to electrical noise—an essential feature in harsh plant environments where electromagnetic interference (EMI) from motors, drives, and welding equipment can degrade copper-based links.
Performance specifications highlight dynamic packet sizes and a network link speed that reaches up to 2.1 Gbits/sec. These metrics translate to effective transfer rates ranging from about 43 MB/sec to 174 MB/sec depending on real-world payload and packet size, helping ensure that large blocks of memory can be propagated quickly across the network.
Another key benefit of the GE IC695CMX128-EG is its single-slot form factor. It installs easily into a PACSystems RX3i backplane alongside CPU, I/O, and communication modules, drawing power directly from the backplane bus without requiring auxiliary supplies. This modular integration simplifies scaling and enables OEMs and system integrators to deploy reflective memory capabilities without redesigning rack layouts.
Diagnostic feedback is also built into the module with LED indicators on the front face that display status information including power, memory activity, and communication health. These indicators provide technicians with immediate visibility during startup and maintenance, reducing the time required to verify healthy network operation.
Reflective memory networking itself introduces an important architectural advantage: data determinism. When a node writes to a shared portion of reflective memory, all other nodes receive the updated value at roughly the same instant. This contrasts with slower polling or message-based approaches where latency and jitter can complicate synchronization. Deterministic memory sharing simplifies coordinated control logic across multiple CPUs, particularly when timing relationships must be maintained precisely.
