ABB PXAH401 high-performance analog input module

The ABB PXAH401 is a high-performance analog input module from ABB’s S800 I/O series, designed for industrial automation and process control applications. Below are its key technical parameters:

Technical Specifications

1. General Information

• Module Type: Analog Input (AI)
• Series: Part of ABB’s S800 I/O family, compatible with AC 800M and other ABB controllers.
• Isolation: Channel-to-channel and channel-to-system isolation for noise immunity.

2. Input Channels

• Number of Channels: Typically 4 or 8 channels (depends on variant).
• Signal Type:
  • Voltage Input: e.g., ±10V, 0–10V, 1–5V.
  • Current Input: e.g., 0–20mA, 4–20mA (with HART support in some versions).
  • Thermocouple (TC) / RTD: Optional for temperature measurement.

3. Resolution & Accuracy

• Resolution: 16-bit (high precision).
• Accuracy: Typically ±0.1% of full scale (for voltage/current inputs).
• Update Rate: Configurable, typically 10–100 ms per channel.

4. Electrical Characteristics

• Input Impedance:
• • Voltage Input: ≥1 MΩ.
  • Current Input: 250 Ω (for 4–20mA).
• Overload Protection: Up to 30V continuous (voltage) or 50mA (current).

5. Communication & Integration

• Bus Interface: Profibus DP, Foundation Fieldbus, or IEC 61158-2 (depends on variant).
• Compatibility: Works with ABB’s Advant Controller 800xA and Compact Control Builder.

6. Environmental Ratings

• Operating Temperature: -25°C to +60°C.
• Humidity: 5–95% RH (non-condensing).
• Certifications: CE, UL, ATEX (for hazardous areas in some versions).

7. Power Supply

• Supply Voltage: 24V DC (typical for S800 I/O modules).
• Power Consumption: ~2–5W (depends on active channels).

8. Mechanical Details

• Mounting: DIN rail or panel-mounted.
• Dimensions: Approx. 120mm x 30mm x 110mm (varies by model).

Typical Applications

• Process control (e.g., pressure, flow, temperature monitoring).
• Integration with ABB 800xA DCS or AC 800M PLCs.
• Industrial automation in oil/gas, power plants, and chemical industries.