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The GE IS200SDIIH2A is an Isolated Digital Input Terminal Board for the GE Mark VI (MKVI) turbine control system. Its main function is to provide a physical connection and a layer of electrical isolation for digital signals from field devices, ensuring the integrity and safety of the control system.
Function and Purpose ⚙️
The IS200SDIIH2A serves as the crucial interface between the turbine’s digital sensors (like limit switches and pressure switches) and the main control processor. It receives on/off signals and routes them to the system’s I/O packs. The “isolated” part of its name is vital, as it means the board is designed to prevent electrical noise, surges, and ground loops from affecting the sensitive electronics of the control system. This isolation is critical in harsh industrial environments for ensuring signal accuracy and system protection.
Related Components
The IS200SDIIH2A works in conjunction with other components of the Mark VI system, including:
- Processor Cards: The main CPU of the system, which reads the digitized data from the IS200SDIIH2A.
- I/O Packs: These electronic modules mount directly on the terminal board and contain the active electronics for signal processing and conversion.
- Field Devices: The board connects to a variety of digital sensors, such as limit switches and solenoids, to acquire the necessary status information.
