GE DS200TCDAG2BBA Digital I/O Board – Product Description

Product Overview

The GE DS200TCDAG2BBA board supports real-time turbine control applications where stable signal acquisition is essential. It manages data flow between sensors, actuators, and the Mark V or Mark VI control processors with dependable performance. Moreover, the module handles demanding turbine conditions confidently due to its rugged VME-based design. Its fast processing cycle keeps control loops stable, and its diagnostic features simplify on-site troubleshooting during critical operations.

Technical Specifications

General Functionality

• Turbine control data acquisition and I/O processing

• Executes logic, manages redundancy voting, and communicates with control processors

System Platform

• GE Speedtronic Mark V / Mark VI / Mark VIe

Processor & Performance

• Embedded PowerPC architecture

• Typical control cycle: 2–3 ms (≤5 ms maximum)

Redundancy

• Supports TMR (2oo3 voting) and dual systems

I/O Capabilities

• Digital input processing from DTBA / DTBB boards

• Output control to TCRA actuator boards

• Analog support: 16-bit ADC, thermocouples, RTDs, 4–20 mA, 0–10 V

Diagnostics & Data Recording

• Detects T/C and RTD faults, loop breaks, and wiring issues

• 32 MB memory for SOE logs and waveform capture

Communication

• VME bus and IONET fiber/ethernet links

Environmental Ratings

• Operating temperature: 0 °C to +60 °C

• Conformal coating for harsh industrial conditions

• MTBF > 100,000 hours

Physical

• Dimensions: 168 × 150 × 55 mm

• Weight: 1.0 lb (0.45 kg)

FAQ

Q1: Is the DS200TCDAG2BBA compatible with all Mark V systems?
Yes, the board works with standard Mark V configurations, although some sites may require matching terminal boards for full functionality.

Q2: Can the module be replaced while the turbine remains online?
Yes, the board supports controlled hot-swap procedures when system redundancy is enabled.

Q3: What diagnostics are available for maintenance teams?
It reports sensor faults, wiring errors, loop breaks, and module health status through front-panel LEDs and system logs.

Q4: Does it support mixed analog and digital signals?
Yes, it processes digital signals natively and also supports analog measurements through its high-resolution ADC.

Q5: How long is the operating lifespan?
Most installations run the board for many years, and its MTBF rating above 100,000 hours supports long-term reliability.