IS200VCMIH1BCD | General Electric | Mark VI VME Bus Master Control Board

Product Overview

The IS200VCMIH1BCD functions as the primary VME Bus Master Control Board within the General Electric Mark VI Speedtronic control system. This 100% Brand New original VCMI (Virtual Communication Machine Interface) module serves as the central communication hub between the controller's internal VME backplane and the external IONet network. It coordinates high-speed data exchange, synchronization, and diagnostic reporting across the turbine control suite. By utilizing SIFT (Software Implemented Fault Tolerance) protocols, the IS200VCMIH1BCD ensures that the voting logic between redundant controllers remains synchronized and error-free.

Technical Specifications

The IS200VCMIH1BCD integrates advanced communication management with rigid VME bus mastership capabilities.

Engineering Advantages

• Advanced SIFT Fault Tolerance: The VCMI board executes Software Implemented Fault Tolerance (SIFT). This protocol identifies and masks data discrepancies between redundant controllers, allowing the Mark VI system to maintain turbine stability even if a specific communication path encounters a fault.

• Deterministic VME Mastership: This board assumes the role of VME Bus Master, controlling the timing and prioritization of data traffic across the backplane. This centralized authority prevents bus contention and ensures that high-priority trip signals and fuel commands reach their destination with zero jitter.

• Extreme Thermal Resilience: The hardware maintains full operational integrity across an expansive temperature range of -40°C to +85°C. This solves the industry-wide challenge of controller instability in unconditioned turbine enclosures, ensuring consistent performance in both arctic and desert environments.

• Integrated Power Conversion: The IS200VCMIH1BCD accepts a standard 24 VDC input and internally regulates it to the 5 VDC required for VME bus logic. This eliminates the need for separate low-voltage power supplies within the controller rack, reducing cabinet complexity and heat generation.

FAQs

• Is this IS200VCMIH1BCD unit a factory-new original?

  Yes. We supply this module as 100% Brand New original GE factory stock. Each unit arrives in its original anti-static shielding with all manufacturer-applied identification marks to guarantee authenticity and long-term field reliability.

• What is the function of the "BCD" revision suffix?

  The "BCD" suffix indicates the specific hardware revision level. This revision incorporates updated communication chipsets and improved thermal dissipation compared to earlier models. Always verify that your Mark VI configuration files support this revision level before installation.

• Does this board require manual configuration of the VME addresses?

  The Mark VI system typically assigns VME addresses automatically via the system's software. However, you must ensure the board is seated firmly in the master slot of the VME rack to enable it to take control of the bus and begin the SIFT synchronization process.

• How does the board handle high-humidity environments?

  The IS200VCMIH1BCD utilizes industrial-grade coatings to protect sensitive PCB traces. It operates effectively in up to 95% non-condensing humidity, making it suitable for coastal power plants or facilities with high ambient moisture levels.