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GE VCMI-H2B | VME Bus Master Controller

Brand: GE

Model: GE VCMI-H2B | VME Bus Master Controller

Origin: Switzerland

Warranty: 365 days

Quality: new/second-hand

Delivery method: express delivery

Telephone :+86 18020721390

WeChat:+86 18020721390Email:sakyzeng@foxmail.com

product details

GE VCMI-H2B: VME Bus Master Controller Module

1. Core Function and Positioning

The GE VCMI-H2B (VME Bus Master Controller) is a critical component in GE’s Mark VI gas turbine control systems. As a 6U VME bus board, it serves as a communication and control hub, facilitating data exchange between the main controller, I/O boards, and the IONet system network. It manages board identification (ID) for all circuit boards and terminal blocks in the rack, ensuring seamless coordination and real-time signal transmission in industrial turbine control applications.


2. Key Specifications from Product Documentation

Parameter CategoryTechnical Details
Form Factor6U VME board; width: 0.787 inches (20 mm).
ProcessorTexas Instruments (TI) TMS320C32 32-bit digital signal processor (DSP).
Memory Configuration- 32KB dual-port memory (32-bit transfer).
- 256k x 32 SRAM.
- 512k x 8 flash memory (VCMIH B) or 4096K x 8 flash (VCMIH C).
Communication Interfaces- 3 IONet 10Base2 Ethernet ports (BNC connectors, 10 Mbits/sec).
- 1 RS-232C serial port (D-sub connector, fixed 9600 baud rate).
- Supports VME bus block transfers.
Frame Rate10 ms (100 Hz) in simplex mode; 40 ms (25 Hz) in Triple Modular Redundancy (TMR) mode (application-dependent).
Power MonitoringMonitors internal power buses: +5V, ±12V, ±15V, and 28V. Alarm thresholds are customizable (typically 3.5% for most, 5.5% for 28V).
Front Panel & Indicators- 4 ports: 3 IONet connectors, 1 serial port.
- LEDs per IONet port: "TX" (transmit), "RX" (receive), "CD" (carrier detect).
- Additional LEDs: 1, 2, 4, 8 (status codes); "Run/Fail/Status" LED (operation status).
- Reset button for system restart.
Environmental RatingsDesigned for industrial environments; operating temperature range typically -40°C to +70°C (varies by application).


3. Functional Role

  • Communication Hub: Bridges the controller, I/O modules, and IONet network, enabling real-time data transmission for turbine control.
  • ID Management: Assigns and tracks IDs for all boards and terminal blocks in the rack, ensuring system integrity.
  • Signal Processing: Uses the TMS320C32 DSP for high-speed data processing, critical for maintaining turbine operational stability.
  • Redundancy Support: Compatible with TMR configurations for fault tolerance in mission-critical applications (e.g., power generation).


4. Application Scenarios

  • Gas Turbine Control: Integral to GE Mark VI systems, controlling and monitoring gas turbine operations in power plants, refineries, and industrial facilities.
  • Industrial Automation: Supports distributed control systems (DCS) requiring reliable VME bus communication and real-time data handling.

  • DS200SLCCG1AEF (2).jpg


label: VCMI-H2B

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