Description
ABB AI625 is a high-precision analog input module designed for industrial automation systems, delivering reliable and accurate signal acquisition for process control and monitoring. As part of ABB’s comprehensive portfolio of PLC spare parts, the
AI625 is engineered to interface with various sensors and transmitters, converting analog signals into digital data for seamless integration with ABB’s AC 800M and other compatible PLC platforms. This module is ideal for applications requiring precise measurement of parameters such as temperature, pressure, and flow rate, ensuring optimal performance in industries ranging from manufacturing to energy and utilities. The
ABB AI625 stands out for its robustness, ease of configuration, and compliance with international standards, making it a trusted choice for critical control systems.
Parameter |
Specification |
Model |
AI625 |
Brand |
ABB |
Type |
Analog Input Module (8 channels) |
Signal Types |
4–20 mA, 0–10 V, thermocouples, RTDs |
Resolution |
16-bit |
Accuracy |
±0.1% of full scale |
Voltage Supply |
24 V DC ±10% |
Communication |
Serial interface (e.g., Profibus DP) |
Operating Temperature |
-40°C to +70°C |
Dimensions |
Compact design (approx. 100 x 100 x 50 mm) |

ABB AI625
The ABB AI625 offers several key advantages, including high precision and flexibility. Its 16-bit resolution ensures accurate signal conversion, while support for multiple signal types (e.g., current, voltage, thermocouples) eliminates the need for external signal conditioners, reducing setup complexity. The module’s hot-swappable design allows for safe replacement during operation, minimizing downtime, and its built-in self-diagnostics provide real-time status updates to identify faults quickly. Additionally, the AI625 is designed for energy efficiency, consuming low power while maintaining robust performance in harsh industrial environments.
The ABB AI625 is widely used in process control systems, power plants, and manufacturing facilities where precise analog signal measurement is critical. Typical applications include monitoring temperature in boiler systems, tracking pressure in hydraulic lines, and managing flow rates in chemical processing.
Case Study: A pharmaceutical company integrated the ABB AI625 into their batch processing system to monitor temperature and pressure in reactors. The module’s high accuracy and reliable data transmission enabled real-time adjustments to process parameters, improving product consistency and reducing waste by 25%.
Compared to similar analog input modules, the ABB AI625 distinguishes itself through its wide signal compatibility and extended temperature range, making it suitable for extreme industrial environments. Its advanced diagnostic features and seamless integration with ABB’s automation ecosystem provide a competitive edge in terms of ease of use and system reliability. The module’s compact form factor also offers space-saving benefits in control cabinets, unlike bulkier alternatives on the market.

ABB AI625
When choosing the ABB AI625, consider:
- Signal Requirements: Ensure compatibility with your sensor types (e.g., RTDs, thermocouples).
- System Integration: Verify compatibility with your PLC or DCS platform (e.g., ABB AC 800M).
- Environmental Demands: Assess if the module’s temperature and humidity ratings suit your operational conditions.
- Scalability: Evaluate the number of channels (8 channels per module) to meet current and future monitoring needs.
- Installation: Follow ABB’s guidelines for proper wiring and grounding to avoid signal interference.
- Calibration: Periodically calibrate the module to maintain measurement accuracy, especially in high-precision applications.
- Safety Compliance: Ensure installation and maintenance are performed by qualified personnel to adhere to safety standards (e.g., IEC 61131-2).
- Environmental Protection: In dusty or humid environments, use appropriate enclosures to protect the module from contaminants.
Shanxi Xinyeda International Trading Co., Ltd. is your trusted partner, we provide and other automation spare parts sales and technical support. Please visit our website www.xydcontrol.com or contact us and we will be happy to serve you.
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