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GE IS200VCMIH1B
Product Name: GE Mark VI VCMI Communication Module / VME Communication Interface Board
Product Introduction: The IS200VCMIH1B is a VCMI (VME Communication Interface) module and bus master controller board used in GE’s Mark VI Speedtronic turbine control system. It serves as the central communication controller within the VME backplane architecture, coordinating data exchange between I/O boards, controllers, and the GE IONet control network.
Detailed content
Technical Specifications:
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Product Series: Mark VI Speedtronic Turbine Control System
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Board Type: 6U VME board
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Processor: Texas Instruments TMS320C32 32-bit digital signal processor
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Memory: 32 KB dual-port SRAM, 128 KB flash memory
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Communication Interfaces: VME bus interface, IONet communication interface
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Ethernet: 3 × 10Base2 Ethernet ports
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Serial: RS-232C serial port
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Additional: Parallel communication interface
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Power Supply: 28V DC nominal (14-32V DC range)
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Frame Rate: 10ms for simplex systems; 40ms for TMR systems
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System Architecture: Supports simplex and Triple Modular Redundant (TMR) configurations
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Operating Temperature: -30°C to +65°C
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Storage Temperature: -40°C to +85°C
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Dimensions: 178mm × 330mm × 200mm
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Weight: Approximately 2 kg
Functional Features:
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VME bus master—coordinates communication within the control rack
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Manages data exchange between connected control modules
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Diagnostic features: Run, Fail, Status monitoring, board identification, cable ID reading, watchdog monitoring
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LED indicators: RUN, FAIL, STATUS, and communication activity
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Compatible with GE Mark VI turbine control platforms
Working Principle: The onboard TMS320C32 DSP manages VME bus communication and identifies connected boards and terminal boards. It acts as a communication bridge between controllers, I/O boards, and the IONet control network, implementing fault-tolerant communication logic for deterministic real-time control data distribution.
Application Scenarios: Gas turbine control systems, steam turbine control systems, industrial power generation control systems.
Installation Requirements: Install in a GE Mark VI VME rack chassis, connecting via VME backplane connectors. Ensure correct slot placement per system design. Proper grounding and system shutdown are required during installation.
Usage Precautions: Before replacing, confirm system compatibility, rack position, communication connections, board revision, power supply requirements, and control configuration. Only trained turbine control engineers should perform replacement.
