



The ABB AI931 is a high-precision analog input module engineered to provide reliable, real-time data acquisition for industrial automation systems and process control. Designed for seamless integration with ABB's 800xA and Freelance control systems, the AI931 interfaces with a variety of industrial sensors, such as those used for monitoring temperature, pressure, flow, and level. With 16-bit resolution, superior accuracy, and broad compatibility, the AI931 is ideal for industries that demand accurate data for critical monitoring and control applications. Its versatile design makes it suitable for use in energy management, manufacturing, and chemical processing systems, where precise data is key to optimizing performance, ensuring compliance, and improving efficiency.
Technical Specifications
| Feature | Specification |
|---|---|
| Model | ABB AI931 |
| Module Type | Analog Input Module |
| Number of Channels | 8 (Differential Inputs) |
| Input Range | ±10V, 0-20mA, 4-20mA |
| Resolution | 16-bit |
| Accuracy | ±0.05% of full scale |
| Input Impedance | 1 MΩ for voltage inputs, 250 Ω for current inputs |
| Operating Temperature | -20°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Dimensions | 144mm x 130mm x 30mm |
| Weight | 0.2 kg |
| Mounting Type | DIN Rail Mountable |
| Power Consumption | 2.5W |
| Communication Protocol | Modbus RTU, Profibus DP, Ethernet/IP |
Recommended Related Models
For users requiring additional channels or advanced features, consider these ABB models:
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ABB AI832 – Provides additional input channels, ideal for larger systems with more complex data acquisition requirements.
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ABB AI830A – Offers higher input capacity and flexibility, suited for applications requiring simultaneous data acquisition from numerous sensors.
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ABB AI530 – A compact and budget-friendly alternative for simpler systems with basic analog input needs.
Popular Allen Bradley Models
If you are considering other manufacturers, the following Allen Bradley models are similar in function:
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Allen Bradley 1756-IF8 – A high-performance 8-channel analog input module with flexible input ranges, providing precise data acquisition in complex industrial systems.
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Allen Bradley 1734-IE8 – A compact, rugged 8-channel module, ideal for space-constrained applications where reliable analog input is needed.