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The GE DS200DMCBG1A DS200DMCBG1ADC Speedtronic turbine control board serves as the main processor for Mark V systems. This board executes all turbine control algorithms and logic functions. You will find this control board in the central rack of Speedtronic Mark V cabinets. Its high-performance design ensures deterministic real-time control.
Processor Architecture
This turbine control board uses a 100 MHz 32-bit RISC processor. Consequently, it handles complex control loops with sub-millisecond cycle times. The GE DS200DMCBG1A DS200DMCBG1ADC includes dual redundancy ports for fault-tolerant operation. Moreover, onboard memory stores application code and process data. You can configure this board for simplex or duplex modes.
Technical Specifications
| Parameter | Value |
|---|---|
| Processor Speed | 100 MHz |
| CPU Type | 32-bit RISC |
| RAM Capacity | 16 MB SDRAM |
| Flash Memory | 8 MB (application storage) |
| Non-Volatile RAM | 1 MB (retentive data) |
| Redundancy Ports | 2 (high-speed serial for synchronization) |
| Communication Ports | 3 (RS-232, RS-485, Ethernet) |
| Input Voltage | 5V DC from backplane |
| Power Consumption | 12W typical |
| Dimensions | 260mm x 200mm x 40mm |
| Weight | 0.88 kg (1.94 lbs) |
| PCB Layers | 8 |
| Onboard Components | 1 CPU, 8 memory chips, 2 FPGA, 1 watchdog timer |
| Connector Count | 6 (redundancy, comm, power, backplane, I/O, diagnostic) |
| Status Indicators | 8 LEDs (CPU health, sync, fault, active, standby, comm, power, watchdog) |
| Energy Storage | 3300 µF (power hold-up capacitance) |
| Watchdog Timeout | 100 ms (software configurable) |
| Operating Temperature | 0°C to +50°C |
| Storage Temperature | -20°C to +70°C |
Redundancy and Data Management
The unit includes two dedicated high-speed ports for processor synchronization. Therefore, dual processors can maintain identical states for bumpless transfer. This board replaces the DS200DMCBG1ADC version without any program changes. Simply swap the boards and load the application code. GE designed this control board for hot-standby redundancy. Hence, the system continues running if one processor fails.
Eight PCB layers separate high-speed digital traces from power and analog signals. Six connectors handle all communication, redundancy, and I/O interfaces. The GE DS200DMCBG1A DS200DMCBG1ADC holds 3300 µF of capacitance for power hold-up. Accordingly, it survives brief power interruptions without resetting. Eight status LEDs provide complete health and operational feedback.
Watchdog and Installation Guide
A hardware watchdog timer resets the processor if software stalls. The board logs watchdog events in non-volatile memory for diagnosis. The GE DS200DMCBG1A DS200DMCBG1ADC works with all GE Mark V I/O boards. Always verify firmware revision compatibility before installation. The dual-processor configuration requires matched firmware on both boards.
Proper grounding of the chassis ensures noise-free processor operation. The board includes a real-time clock with battery backup. The GE DS200DMCBG1A DS200DMCBG1ADC delivers reliable Speedtronic turbine control processing. Installation requires careful handling of static-sensitive components. This board operates in non-condensing environments with adequate cooling.