Description
Parameters
| Parameter | Specification |
|---|---|
| Input Channels | 8, differential (isolated) |
| Input Ranges | ±10V, 0–20mA, 4–20mA (software selectable per channel) |
| Overload Protection | ±30V continuous (voltage); ±50mA (current) |
| ADC Resolution | 16-bit SAR |
| Accuracy | ±0.1% FS at 25°C; ±0.2% over -40°C to +70°C |
| Input Impedance | >1MΩ (voltage); 250Ω (current) |
| HART Communication | Yes (built-in, per channel) |
| Filtering | Programmable: 10Hz, 50Hz, 100Hz, 500Hz |
| Sample Rate | 10Hz–500Hz |
| CMRR | >90dB at 50/60Hz |
| Diagnostics | Over/under-range, open-wire detection, reference monitor |
| Isolation | 1500Vrms (input-to-backplane); 500VDC (channel-to-channel) |
| Power Supply | 24VDC, 200mA |
| Operating Temp | -40°C to +70°C |
| Mounting | Eurocard (6U, 160mm) |
| Certifications | UL, CSA, ATEX Zone 2, SIL 2 capable |
Advantages & Features
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HART Communication – The ABB 3BHE003604R0102 UFC765AE102 includes built-in HART modems per channel, enabling communication with smart transmitters for configuration, diagnostics, and digital process variable access without additional hardware.
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High Accuracy – 16-bit resolution and ±0.1% accuracy ensure reliable measurements for critical control loops.
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Versatile Input Ranges – Per-channel configurable for voltage or current signals, accommodating mixed sensor types.
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Comprehensive Diagnostics – Continuous open-wire, over-range, and under-range detection with fault reporting to the controller.
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SIL 2 Capable – Suitable for safety-critical applications with appropriate proof-testing.
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ABB System Integration – Native support for System 800xA and Procontrol P14, ensuring seamless integration.
Application Cases
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Gas Turbine Control – Monitors pressure, temperature (via transmitters), and flow signals with HART communication for smart transmitter configuration.
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Generator Excitation – Measures field voltage and current signals for excitation control.
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Steam Turbine Monitoring – Monitors bearing temperature, steam pressure, and valve position feedback.
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Process Industries – General-purpose analog input for chemical, oil & gas, and water treatment applications.
Competitor Comparison
| Feature | ABB 3BHE003604R0102 | Siemens 6ES7331-7KF02 | GE DS4820A1SA | Rockwell 1756-IF8 |
|---|---|---|---|---|
| Channels | 8 | 8 | 16 | 8 |
| HART Support | Yes (built-in) | No | No | No |
| Resolution | 16-bit | 16-bit | 16-bit | 16-bit |
| Accuracy | ±0.1% | ±0.1% | ±0.1% | ±0.1% |
| SIL Rating | SIL 2 | SIL 1 | SIL 1 | SIL 1 |
| Integration | ABB System 800xA | Siemens TIA | GE Mark VIe | Rockwell Logix |
The ABB 3BHE003604R0102 UFC765AE102 is distinguished by its built-in HART communication capability, which is not offered by GE, Siemens, or Rockwell in their standard analog input modules.
Selection Suggestions
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Choose for ABB System 800xA or Procontrol P14 applications requiring analog input with HART communication for smart transmitters.
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If HART is not required, the lower-cost UFC765AE101 (non-HART variant) may be sufficient.
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For SIL 2 applications, use with external voting logic and periodic proof-testing (every 24 months).
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Verify field device compatibility for HART communication (requires HART-enabled transmitters).
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Pair with matching ABB TU810 or TU830 termination unit.
Precautions
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HART Wiring – HART communication requires a minimum loop resistance of 250Ω. The ABB 3BHE003604R0102 UFC765AE102 includes the required resistor; ensure the loop power supply provides adequate voltage (typically 24VDC).
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Input Selection – Configure each channel for voltage or current via software. HART is only supported in current mode (4–20mA).
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Grounding – Use differential inputs to reject ground loops. Connect shields at module end only.
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Filter Selection – For HART communication, avoid filters below 50Hz, as they may attenuate HART signals (frequencies >1kHz).
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Calibration – Factory calibration valid for 24 months. Recalibrate using precision source (0.01% accuracy).
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Power Supply – Ensure 24VDC supply can provide 200mA plus loop power for transmitters (typically 4–20mA each).
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ESD Handling – Use ESD-safe practices when handling the module.
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