الوصف
The GE IS200VPROH1A is a VME Processor Board for the Mark VI series of GE’s Speedtronic Gas Turbine Control Systems. It is the central processing unit (CPU) of the control system, responsible for executing control logic, processing data from I/O cards, and communicating with other system components.
Key Features and Functions
The VPROH1A is the brain of the Mark VI control system. Its key features and functions include:
- Processor Core: The board is based on a high-speed processor that executes the control software. It handles all critical control functions, including sequencing, control loop execution, and protection logic.
- Data Processing: It processes data from various I/O cards (like analog input, digital input, and vibration cards), performs calculations, and sends commands to output cards to control the turbine.
- Communication: The VPROH1A manages communication with other controllers, human-machine interface (HMI) workstations, and external systems. It uses dedicated communication ports for these purposes, ensuring a reliable flow of information.
- Memory: The board includes on-board memory to store the control application program, configuration data, and system logs.
- TMR Support: The board is designed to support Triple Modular Redundancy (TMR) systems. In a TMR setup, three separate VPRO boards are installed in different VME racks, each executing the same control logic. A voting mechanism ensures that the system can continue to operate even if one of the boards fails, providing enhanced safety and reliability.
- Diagnostics: The board’s faceplate typically features LED indicators to display its operational status, including power, run status, and fault alerts, making it easier to troubleshoot.
Technical Specifications