Description
GE IC695RMX128 Technical Specifications:
- User Memory: 128 MB SDRAM (expandable up to 512 MB via custom configuration).
- Transmission Rate: High-speed optical network supporting up to 2.12 Gbaud.
- Network Topology: Supports up to 256 nodes in a reflective memory configuration.
- Fiber Interface: Single-mode fiber optic connection utilizing LC-type connectors.
- Power Consumption: Operates at 580 mA @ 3.3 VDC and 220 mA @ 5 VDC.
Functional Features:
- Deterministic Data Transfer: Guarantees that data written to one node is instantaneously updated across all connected nodes.
- CPU Redundancy Link: Provides a dedicated, high-speed communication path for Hot Standby CPU pairs to maintain identical memory states.
- Network Error Detection: Built-in diagnostics to monitor fiber link integrity and data transmission accuracy.
- Software Configuration: Node parameters and network offsets are configured via programming software, eliminating the need for physical DIP switches.
Application Scenarios:
- High-availability Hot Standby CPU redundant control systems.
- Distributed control systems requiring real-time data sharing across multiple controllers.
- Hardware-in-the-loop (HIL) simulation and testing platforms.
- Large-scale manufacturing and continuous process industries.
Performance Parameters:
- Latency: Microsecond-level data reflection latency ensuring real-time synchronization.
- Bandwidth: 2.12 Gbaud fiber optic transmission ensures massive data throughput without bottlenecks.
- Reliability: Designed for continuous 24/7 operation in harsh industrial environments with high immunity to electromagnetic interference.
Material Composition & Structural Characteristics:
- Optical Components: Precision single-mode fiber optic transceivers for long-distance, noise-free data transmission.
- Memory Architecture: High-speed SDRAM chips optimized for rapid read/write operations.
- Form Factor: Single-slot RX3i module with a ruggedized front panel featuring status LEDs (LNKOK, READY, ACTIVE).
- PCB: Multi-layer printed circuit board designed for high-speed signal integrity.
Working Principle: The RMX128 module acts as a node on a reflective memory network. When the local CPU writes data to the module’s memory, the onboard controller packages the data and transmits it via the fiber optic ring. All other RMX nodes on the network receive this data and automatically update their local memory to match, ensuring complete system synchronization without CPU intervention.
Installation Requirements:
- Fiber Routing: Route fiber optic cables carefully to avoid sharp bends or crushing forces that could degrade the optical signal.
- Network Topology: For CPU redundancy, connect two RMX modules to form a complete 2-node ring using two fiber cables.
- Slot Placement: Install the module in an appropriate RX3i rack slot, ensuring proper backplane engagement.
- Software Setup: Configure the module’s node ID and network parameters using the PACSystems machine edition software.
Usage Precautions:
- Dedicated Redundancy: When used for CPU redundancy, the RMX module cannot simultaneously be used as a general-purpose reflective memory node.
- Fiber Handling: Always use protective caps on fiber connectors when not in use to prevent dust contamination.
- Pairing: Redundant links require matching RMX modules; do not mix incompatible hardware revisions.
- Diagnostics: Monitor the front-panel LEDs and software diagnostics to verify link health and active status.
