AI625 Analog input module

ABB AI625 is an analog input module. Here is its detailed information:

Basic Parameters
- Module Type: Analog input module
- Series: Typically belongs to ABB's S800 I/O module series.
- Number of Channels: Common versions have 16 channels, and some sources indicate the existence of an 8-channel version.
- Input Signal Types: Supports 4-20mA, 0-20mA current signals, and ±10V to 0-10V voltage signals.
- Resolution: Generally 12 bits, and some information suggests that the 8-channel version is 16 bits.
- Input Impedance: 2.2kΩ.
- Accuracy: ±0.1%.
- Isolation Mode: Isolation between channels and power supply isolation.
- Update Rate: 250 milliseconds.
- Operating Voltage: 24V DC.
- Operating Temperature Range: -20°C to +60°C.
- Storage Temperature Range: -40°C to +80°C.
Functional Features
- Multi-protocol Support: Supports RS-485 communication bus and is usually compatible with communication protocols such as Modbus RTU, facilitating integration into various automation systems.
- High-precision Acquisition: 12-bit or 16-bit resolution combined with high-precision A/D conversion chips can provide accurate analog input acquisition with a measurement accuracy of up to ±0.1%.
- Isolation Design: The electrical isolation between channels and power supply isolation design can enhance the module's anti-interference capability and ensure the stability of signal acquisition.
- Diagnostic Function: Equipped with diagnostic functions, it can monitor communication status in real-time, facilitating fault troubleshooting and system maintenance.
Application Fields
- It is often used in industrial automation control systems to collect and convert analog parameters such as temperature, pressure, and flow in the production process. It is widely applicable to various industries such as chemical engineering, electric power, metallurgy, petrochemicals, and food processing.