DS200UDSAG1AAA | GE Mark VI Controller Board

Description

Product Introduction (Anti-Template)

The DS200UDSAG1AAA is the most advanced data server controller board GE produced for the Mark VI system—the board that combines dedicated data acquisition, storage, and historian services with reinforced isolation (1800Vrms), extended temperature operation (-20°C to +70°C), enhanced EMC protection (10V/m radiated immunity), comprehensive diagnostics, and advanced time-stamping that records the exact time of each data acquisition event. This board is the ultimate data server for critical turbine data acquisition applications.

The ‘UDSA’ in the part number indicates this is a data server controller board. The ‘AAA’ suffix tells you this is the ultimate version: reinforced isolation (1800Vrms), extended temperature range (-20°C to +70°C), enhanced EMC protection, comprehensive diagnostics, and advanced time-stamping with ±100µs accuracy. Compared to the UDSAG1A (standard isolation, 0-55°C, no time-stamping), the ‘AAA’ gives you reinforced isolation, extended temperature range, and advanced time-stamping. This is the board you spec when you need the absolute best performance and reliability from your data server.

Key Technical Specifications

Compatible Replacement Models

Replacement options depend on your need for reinforced isolation, extended temperature, and advanced time-stamping.

✅ Drop-in Replacement: The DS200UDSAG1A (no ‘AA’) is a direct electrical drop-in—same pinout, same form factor, same processor, same data acquisition cycle. The differences: the ‘A’ has standard isolation (1500Vrms), standard temperature range (0-55°C), standard EMC, and no time-stamping. If your environment is benign and your requirements are standard, the ‘A’ is a cheaper option (typically 25-35% less). The ‘AAA’ is for harsh environments requiring reinforced isolation and time-stamping.

⚠️ Software Compatible: The DS200UDSAG1 (no diagnostics) is a significant downgrade—only use if you’re in a pinch.

⚠️ Software Compatible: The DS200UCIAG1A (CPU controller) is the main CPU, not a data server—only use if you need CPU functionality.

❌ Hardware Incompatible: Any I/O board (TCCAG1, TCDAG1, TCQAF1, etc.) uses different backplane pins and is not suitable as a data server replacement.

Frequently Asked Questions (FAQ)

What does the ‘AAA’ suffix mean on this data server board?

GE’s suffix coding for the UDSAG1AAA: the ‘A’ is the base platform (data server). The second ‘A’ indicates reinforced isolation (1800Vrms), extended temperature range (-20°C to +70°C), and enhanced EMC protection. The third ‘A’ is the production revision with advanced time-stamping (±100µs), comprehensive diagnostics, and advanced health monitoring. So ‘AAA’ is the most robust, time-stamping-enabled, diagnostic-rich version of the UDSAG1 platform.

How does advanced time-stamping work on this board?

The ‘AAA’ has a high-precision timestamping circuit that records the exact time (to ±100µs accuracy) when data acquisition events occur:

• I/O data acquisition
• Data logging events
• Communication events
• Diagnostic events

The timestamp is synchronized with the Mark VI system clock. This allows you to correlate data with turbine events and perform post-event analysis with precise timing.

Can I use this board with a Mark VIe controller?

No—the UDSAG1AAA uses the older Mark VI backplane pinout and architecture. Mark VIe uses a different system architecture. If you’re migrating to Mark VIe, you’ll need the Mark VIe-specific data server boards.

How do I test this board before installation?

Testing the UDSAG1AAA requires verifying the data server functionality, reinforced isolation, comprehensive diagnostics, and timestamp accuracy:

1. Visual inspection: Check for burnt or discolored components. Look for diagnostic LEDs, larger isolation components, EMC filtering components, and the time-stamping circuit.
2. Power-up test: Apply power. The board’s status LEDs should illuminate in the correct sequence.
3. Firmware check: Read the firmware version via the system interface—should be 4.0 or later.
4. Communication test: Verify communication via Ethernet ports.
5. Data acquisition test: Verify data acquisition at 5ms intervals.
6. Storage test: Verify data storage and retrieval functionality.
7. Diagnostic test: Verify the diagnostic system reports health status correctly.
8. Time-stamping test: Trigger a data acquisition event and record the timestamp. Verify accuracy within ±100µs.
9. Isolation test: Apply 1800Vrms between the board and ground for 1 minute.
10. EMC test (if equipment available): Apply a 10V/m radiated RF field—verify the board remains stable.
11. Temperature test: Cycle from -20°C to +70°C—verify operation.

What’s the most common failure on this board?

Two issues specific to the data server design:

1. Storage failure. The storage media can fail over time—symptom: data logging errors or inability to retrieve historical data.
2. Time-stamping circuit failure. Timestamp data becomes inaccurate or unavailable.

If I’m using this board in a SIL-rated safety application, what’s the recommended maintenance interval?

The data server board with reinforced isolation, comprehensive diagnostics, and time-stamping is suitable for SIL-2 applications (when used with appropriate redundancy). We recommend:

• Visual inspection: Every 6 months (check diagnostic LEDs)
• Power-up test: Every 12 months
• Communication test: Every 12 months
• Storage test: Every 12 months
• Diagnostic check: Every 12 months (verify health status)
• Time-stamping test: Every 12 months (±100µs spec)
• Isolation check: Every 2 years
• Full system test: Every 5 years

What’s the lead time for a replacement UDSAG1AAA?

These are the rarest and most advanced data server boards:

• New surplus: 4-8 weeks. The ‘AAA’ commands a premium—expect 35-45% above the UDSAG1A.
• Refurbished: 2-4 weeks. Requires specialized calibration equipment and timestamp verification.
• Used/as-is: Extremely high risk—used boards are almost never in spec.

Is there a direct Mark VIe equivalent?

Yes—the IS200UDSAG1AAA (Mark VIe version). The architecture is different.

What’s the data acquisition cycle for this board?

The UDSAG1AAA can acquire data at 5ms intervals—200Hz update rate. The timestamp is captured at the exact moment of acquisition.

What communication interfaces does this board have?

The UDSAG1AAA has Ethernet for network communication and the VME backplane for communication with I/O boards and the main CPU. The reinforced isolation extends to the communication interfaces.

Can I use this board in a redundant configuration?

Yes—the UDSAG1AAA can be used in a redundant configuration with two data server boards (primary and secondary). This provides failover capability for critical data acquisition applications. The comprehensive diagnostics and time-stamping on the ‘AAA’ version improve fault detection and failover response.

What’s the storage capacity of this board?

The UDSAG1AAA has enhanced storage capacity, suitable for extensive data logging requirements. For specific storage capacity, consult the GE specifications.

MVME162-512
MVME162-513A
MVME162-520A