Technical Specifications

• Type: PACSystems RX7i Control Memory Exchange Module
• Manufacturer: Emerson Automation (formerly GE Intelligent Platform)
• Memory Capacity: 16 MB SDRAM (Reflective Memory)
• Communication Interface:
  • LC Fiber Optic Port
  • Supports 2.12 Gbaud data transmission on multi-mode fiber
  • Maximum distance: 300 meters (984.25 feet)
  • Insertion loss: 0.35 dB (maximum)
  • Return loss: -30 dB
• Data Packet Size: Supports dynamic packet sizes ranging from 4 to 64 bytes
• Network Performance:
  • Maximum network throughput: 43 MB/s (for 4-byte packets) to 174 MB/s (for 64-byte packets)
• Node Capacity: Supports up to 256 nodes per network using daisy-chain (or菊花链) connection via FO cables
• Power Requirements:
  • Working voltage: +5VDC
  • Current requirement: 1.8 amps (minimum)
• Redundancy Support: Supports redundant transmission mode operation
• Physical Dimensions: Designed to fit a single slot in the RX7i I/O rack

Functional Characteristics

• Deterministic Data Sharing: The IC698CMX016 utilizes reflective memory technology to ensure deterministic data sharing between PLCs and compatible devices over optical fiber networks. This ensures that any state change transmitted to one node is relayed to all other nodes without delay.
• Independence from CPU: The module operates independently of the CPU, requiring no CPU processing for its operation.
• Compatibility: Compatible with the VMIC 5565 series of reflective memory devices, allowing seamless integration into existing systems.
• LED Indicators: Equipped with various LED status indicators (e.g., OK, Configuration, OWN DATA, Signal Detect) for monitoring module operation and communication status.
• User-Configurable Outputs: Provides user-configurable VME bus outputs for initiating data transmission over the network and detecting network errors.

Application Scenarios

The GE IC698CMX016 is ideally suited for industrial automation applications requiring high-speed, deterministic data sharing between PLCs and connected field devices. Some common applications include:

• Process Control Systems: In manufacturing plants and process industries, the module can be used to synchronize control signals and data across multiple PLCs, ensuring seamless process control and optimization.
• Machine Automation: In automated machinery and production lines, the IC698CMX016 facilitates real-time communication between controllers and sensors, enabling precise control and monitoring of machine operations.
• Distributed Control Systems: In distributed control systems, the module’s ability to support up to 256 nodes per network makes it an ideal choice for large-scale systems requiring extensive data sharing and synchronization.