GE DS200UCIAG2 UC2000 Motherboard

الوصف

The GE DS200UCIAG2 is a UC2000 Motherboard (also known by its functional acronym, UCIA) that is a core component of the General Electric Mark V Speedtronic Turbine Control System.¹

It serves as the main structural and electrical interface for the control lane’s central processing and communication boards within one of the system’s redundant control cores (the R Core).²

⚙️ Primary Function and Components

The DS200UCIAG2 board acts as the foundational backplane for a single control core, enabling the communication and power transfer for its daughter boards.

1. Central Hosting Interface

The motherboard is designed to accommodate and interconnect several critical daughterboards:³

• UCPB (UC2000 Processor Board): This is the main CPU board that mounts directly onto the DS200UCIAG2, executing the turbine control logic program.⁴
• PANA (ARCNET No-LAN Driver Board): This board is typically mounted alongside the UCPB and handles network communications, specifically for the ARCNET peer-to-peer network used for data exchange between the Mark V’s redundant control cores.⁵
• uGENI (Micro Genius I/O): The board provides slots for one or more Genius I/O modules, which manage the interface with field devices and sensors.⁶

2. Signal Translation

The DS200UCIAG2 contains its own onboard microprocessor (often a 196 processor) that performs a vital function: translating raw sensor data before it reaches the main UCPB processor.⁷

• It specifically translates pressure transducer signals received from the TCSA board (Fuel Skid Interface Board) into a format the UCPB can use for control and monitoring.⁸

3. Diagnostics

The board is equipped with a block of 10 LEDs.⁹

• In normal operation, these LEDs flash in sequence from left to right, providing a visual status check.¹⁰
• If an error occurs, the pattern of flashing LEDs represents an error code for diagnostics.¹¹

🏷️ Part Number Details

The full part number, DS200UCIAG2, indicates: