الوصف
The GE DS215UCLAG1B is a Firmware Circuit Board, specifically designated as the UCLA (Unit Controller Logic A) Board, used in the General Electric Speedtronic Mark V Gas and Steam Turbine Control Systems.
This board is a key component within the control core, serving primarily as a logic or interface card that supports the main processing functions of the Unit Controller (UC2000) assembly.
⚙️ Primary Role and Function
As a “Firmware Circuit Board,” the DS215UCLAG1B is a microprocessor-based card that contains its own EPROM (Erasable Programmable Read-Only Memory) modules. Its functions within the Mark V control core include:
- Logic Processing: It performs specific, dedicated logic and interfacing tasks, likely handling communication protocols, data conditioning, or auxiliary control functions.
- Unit Controller Support: It works in conjunction with the main CPU and other boards (like the UCIB and UCPB) that form the Unit Controller assembly.
- Signal Interface: It serves as a necessary interface between the primary control processors (R, S, T) and other specialized I/O or communication networks within the turbine control system.
🏭 System Context
- Series: GE Speedtronic Mark V Turbine Control System.
- Designation: The UC prefix points to its role in the Unit Controller (UC2000) section of the Mark V panel.
- Version: The G1B indicates its generation and functional revision within the DS215 series of Mark V boards.
When dealing with this component, replacement often requires the EPROM chips from the original board to be transferred to the new board to ensure the correct turbine-specific firmware and configuration are retained.




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