GE IS215VCMIH2CA / IS200VCMIH2CAA VME Communication Interface Module

Applications

The GE IS215VCMIH2CA and IS200VCMIH2CAA modules are advanced VME Communication Interface Boards used in GE Mark VI and Mark VIe control systems. These boards manage communication between the main controller and I/O modules, ensuring synchronized data exchange and efficient control of turbine and process systems.

Typical application areas include:

• Gas and Steam Turbine Control Systems

• Power Generation and Distribution Plants

• Process Automation Units

• Industrial Machinery Control Networks

• Marine and Energy Applications

Both models function as the communication backbone within the GE control environment, providing stable, high-speed data handling across redundant networks.

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Overview

The GE VCMI (VME Communication Interface) series is designed to ensure high-speed, fault-tolerant communication between control processors and I/O modules within the Mark VI system.

• The IS200VCMIH2CAA serves as the base module, while

• The IS215VCMIH2CA acts as a later or enhanced version offering improved firmware compatibility and stability.

These boards use a VME bus architecture to provide deterministic data transmission, ensuring precise synchronization between control modules and reducing system latency.

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Technical Parameters 

The IS215VCMIH2CA and IS200VCMIH2CAA share a similar core architecture. Both operate on a VME64-compatible platform with embedded microprocessors to manage high-speed communication.
Key specifications include:

• Model Numbers: IS215VCMIH2CA / IS200VCMIH2CAA

• Function: VME-based communication interface board

• Power Requirement: 5 V DC supplied via backplane connection

• Communication Channels: Dual redundant networks for reliability

• Data Transfer Rate: Up to 40 MB/s (VME bus)

• Operating Temperature Range: 0°C to +60°C

• Mounting Type: VME rack slot

• Compatibility: Fully supports GE Mark VI and Mark VIe control systems

• Weight: Approx. 0.5 kg

  
  

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Key Features

• High-Speed VME Communication: Provides rapid data exchange between control and I/O modules.

• Dual Redundant Network Design: Ensures system reliability and fault tolerance.

• Firmware Upgradeable: Supports updates for performance optimization.

• Diagnostic LEDs: Indicate operational status, network activity, and fault conditions.

• Robust Build Quality: Designed to withstand industrial environments and extended operation cycles.

• Backward Compatibility: Seamless replacement for earlier VCMI modules within GE control systems.

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Structure & Composition

The module’s structure consists of:

• A multilayer PCB built with high-speed signal routing and electromagnetic shielding.

• Two communication ports for redundant network connections.

• Edge connectors for power and signal integration into the VME backplane.

• LED indicators along the front edge for monitoring link status and module activity.

• A firmware storage unit (EPROM/Flash) allowing software updates via GE diagnostic tools.

The hardware layout is optimized to maintain signal integrity and reduce cross-talk between high-frequency communication lines.

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Installation & Maintenance

Installation Procedure:

1. Power off the system and observe ESD protection protocols.

2. Insert the module carefully into the assigned VME slot.

3. Verify the alignment with the backplane connectors and secure the module using retaining screws.

4. Reconnect system power and check LED indicators for normal operation.

   
   

Maintenance Notes:

• Keep the board free from dust and moisture.

• Handle only in ESD-safe environments.

• Periodically verify firmware version and update if recommended by GE.

• If the board shows communication errors, use GE diagnostic tools to isolate network faults.

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Additional Information

Both the IS215VCMIH2CA and IS200VCMIH2CAA are integral parts of the GE Mark VI turbine control ecosystem, ensuring reliable communication and synchronization across distributed control modules. Their modular design, ease of replacement, and proven performance make them essential components in maintaining efficient and continuous industrial operation.

Each module undergoes comprehensive factory testing to meet GE’s strict quality standards, including vibration, thermal, and communication performance tests.