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The GE IS200ISBAH1A PC104 InSync ISBus Board is a specialized communication and interface board, often referred to as an ISBus Daughter Board, used primarily in the GE EX2100 Excitation Control System and the broader Mark VI Speedtronic Turbine Control System.
Its main function is to facilitate high-speed, synchronized data transfer between different control modules in the system.
⚙️ Function and Key Features
The IS200ISBAH1A provides the essential communication backbone for time-critical, synchronized control:
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ISBus Communication: The board is equipped with two ISBus communication channels (labeled INSYNC A and INSYNC B) that allow for seamless, real-time data transmission and synchronization between control components, such as the Application Control Layer Module (ACLI) it connects to.
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PC/104 Interface: The board uses a PC/104 port to connect to a transition or backplane board. PC/104 is a small, rugged, stackable computer bus standard commonly used in embedded industrial applications where reliability and a compact form factor are critical.
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Role in Control Systems: In systems like the EX2100 Excitation Control, maintaining precise timing and synchronization is vital for functions like generator voltage regulation and static starter operation. The ISBus handles this high-speed, deterministic data exchange.
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Diagnostics: Each communication channel includes two status LEDs (one green for “online” and one yellow for “recording”) to provide immediate visual feedback on the board’s communication and operational status.
This board essentially acts as the reliable communication link, allowing different processing and I/O modules to operate in concert, often supporting the redundant architecture common in critical GE control systems.
