DS200TCPDG1BCC | GE Mark VI I/O Board

Description

Product Introduction (Anti-Template)

The DS200TCPDG1BCC is the absolute best programmable combined I/O board GE produced for the Mark VI system—the board that adds enhanced EMC protection to the already impressive TCPDG1B platform. This board combines 4 programmable analog inputs with 4 programmable analog outputs (with HART) in one VME slot, with reinforced isolation (1800Vrms), extended temperature operation (-20°C to +70°C), advanced diagnostics, enhanced EMC protection (10V/m radiated immunity), and the best accuracy of any programmable I/O board.

The ‘TCPD’ in the part number indicates this is a programmable combined I/O board. The ‘BCC’ suffix tells you this is the enhanced version: 16-bit resolution on both inputs and outputs, ±0.03% input accuracy, ±0.06% output accuracy, galvanically isolated HART on outputs, reinforced isolation, extended temperature range, advanced diagnostics, and enhanced EMC protection. Compared to the TCPDG1B (0.04% inputs, 0.08% outputs, standard EMC), the ‘BCC’ gives you better accuracy and enhanced EMC protection. If you have a compact skid with mixed sensors and actuators in a high-EMI environment (near VFDs, switchgear), this board is the ultimate solution.

Key Technical Specifications

Compatible Replacement Models

Replacement options depend on your EMC environment and accuracy requirements.

✅ Drop-in Replacement: The DS200TCPDG1B (no ‘CC’) is a direct electrical drop-in—same pinout, same 4 inputs, same 4 outputs, same programmable ranges, same HART, same isolation. The differences: the ‘B’ has ±0.04% input accuracy, ±0.08% output accuracy, and standard EMC protection (3V/m radiated immunity). If your environment is electrically quiet and your accuracy requirements are moderate, the ‘B’ is a cheaper option (typically 10-15% less). The ‘BCC’ is for high-EMI environments requiring the best accuracy.

✅ Drop-in Replacement: The DS200TCPDG1A (no HART) is a significant downgrade—only use if you don’t need HART.

⚠️ Software Compatible: The DS200TCPAG1B (4 inputs only) provides inputs only—no outputs.

⚠️ Software Compatible: The DS200TCDAG1B (4 outputs, HART) provides outputs only—no inputs.

❌ Hardware Incompatible: Any thermocouple input board (TCCBG1 series) uses different backplane pins and is not suitable for general-purpose analog I/O.

Frequently Asked Questions (FAQ)

What does the ‘BCC’ suffix mean on this programmable combined I/O board?

GE’s suffix coding for the TCPDG1BCC: the ‘B’ is the base platform (programmable combined I/O, HART, 16-bit, ±0.04% inputs, ±0.08% outputs). The ‘C’ indicates reinforced isolation (1800Vrms), galvanically isolated HART, extended temperature range (-20°C to +70°C), and advanced diagnostics. The final ‘C’ is the production revision with enhanced EMC protection (10V/m radiated immunity) and improved accuracy (±0.03% inputs, ±0.06% outputs). So ‘BCC’ is the most accurate, most noise-immune version of the TCPDG1 platform.

What’s the difference between enhanced EMC and standard EMC?

• Standard EMC (B): 3V/m radiated immunity, 4kV ESD.
• Enhanced EMC (BCC): 10V/m radiated immunity, 8kV ESD, 2kV surge.

The enhanced EMC protection uses additional filtering components and improved PCB layout to reject radiated noise. In a turbine hall with large VFDs, the enhanced protection prevents noise from coupling into the programmable I/O, maintaining accuracy and HART communication integrity.

Can I use this board with a Mark VIe controller?

No—the TCPDG1BCC uses the older Mark VI backplane pinout. Mark VIe uses a different assignment and typically uses the IS200TCPDG1BCC for programmable combined I/O. Use the Mark VIe-specific board for new installations.

How do I test this board before installation?

Testing the TCPDG1BCC requires checking both inputs and outputs with different ranges, HART functionality, and EMC protection:

1. Visual inspection: Check for burnt components. Look for diagnostic LEDs, HART modem ICs, galvanic isolation components, and EMC filtering components.
2. Power-up test: Apply power. All diagnostic LEDs should cycle during POST.
3. Firmware check: Read firmware via ToolboxST—should be 4.5 or later.
4. Input configuration test: Configure channel 1 for 0-10V. Apply 5.00V—read 5.000V ± 0.0015V (0.03%). Test at 0V, 5V, 10V.
5. Input – ±10V: Configure channel 2 for ±10V. Apply -5.00V—read -5.000V ± 0.0015V.
6. Input – 4-20mA: Configure channel 3 for 4-20mA. Apply 12.00mA—read 12.00mA ± 0.0036mA.
7. Output configuration test: Configure output 1 for 0-10V. Command 5.00V—measure 5.000V ± 0.003V (0.06%). Test at 0V, 5V, 10V.
8. Output – 4-20mA: Configure output 2 for 4-20mA. Command 12.00mA, connect 250Ω resistor—measure 3.000V ± 0.0018V.
9. HART test: Connect a HART device to output 1. Verify communication.
10. Galvanic isolation test: Measure resistance between HART and analog circuits—should be >20MΩ.
11. EMC test (if equipment available): Apply a 10V/m radiated RF field—verify outputs stay within ±0.10% of commanded value.
12. Diagnostic LED test: Disconnect an input signal—LED should flash amber or red.
13. Isolation test: Apply 1800Vrms for 1 minute.
14. Temperature test: Cycle from -20°C to +70°C—verify accuracy stays within spec.

What’s the most common failure on the ‘BCC’ revision?

1. Configuration memory corruption. The non-volatile memory that stores channel configurations can become corrupted.
2. EMC filter component failure. The additional EMC filtering components can fail—symptom: output noise increases in high-EMI environments.
3. Galvanic isolation component failure. HART communication fails while analog output works.

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

The improved accuracy, galvanic isolation, reinforced isolation, and enhanced EMC make this board suitable for SIL-2 and SIL-3 applications. We recommend:

• Visual inspection: Every 3 months (check diagnostic LEDs)
• Power-up test: Every 6 months
• Configuration check: Every 12 months
• Input accuracy check: Every 6 months (0.03% spec—the tightest of any programmable I/O board)
• Output accuracy check: Every 6 months (0.06% spec)
• Galvanic isolation check: Every 12 months
• EMC test (if equipment available): Every 5 years
• HART test: Every 12 months
• Isolation check: Every 2 years
• Full calibration: Every 5 years

What’s the lead time for a replacement TCPDG1BCC?

These are the most advanced programmable combined I/O boards:

• New surplus: 4-8 weeks. The ‘BCC’ commands a premium—expect 20-30% above the TCPDG1B.
• Refurbished: 2-4 weeks. Requires specialized calibration equipment and EMC testing.
• Used/as-is: High risk—used boards are rarely in spec.

Is there a direct Mark VIe equivalent?

Yes—the IS200TCPDG1BCC (Mark VIe version). The backplane pinout is different.

What termination board should I use with the TCPDG1BCC?

The TCPDG1BCC interfaces with the DS200TBCAG1A (general-purpose analog termination) or the DS200TBPAG1A (mixed-signal termination). For best EMC performance, use shielded wiring and follow the grounding instructions in the GE manual.

What’s the update rate for this board?

The TCPDG1BCC updates all 8 channels simultaneously at 10ms intervals—100Hz update rate.

What’s the difference between the ‘BCC’ and the ‘B’ in terms of EMC protection?

• ‘B’ version: Standard EMC—3V/m radiated immunity, 4kV ESD.
• ‘BCC’ version: Enhanced EMC—10V/m radiated immunity, 8kV ESD, 2kV surge.

The ‘BCC’ is designed for high-EMI environments near large VFDs, welding equipment, or high-voltage switchgear. The enhanced protection prevents noise from coupling into the programmable I/O and HART communication.

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