Description

ABB AI820 S800 I/O series differential analog input module

Technical Specification
Number of channels: 4.
Input type: Bipolar differential, supporting current and voltage input.
Measurement range: Current input is -20mA to + 20mA, 0mA to 20mA, 4mA to 20mA; The voltage input ranges from -10V to + 10V, 0V to 10V, 2V to 10V, -5V to + 5V, 0V to 5V, and 1V to 5V.
Resolution: 14 bits plus signs.
Input impedance: The voltage input terminal is 200kΩ±25%, and the current input is 250Ω.
Maximum on-site cable length: 600 meters.
Overvoltage/undervoltage range: ±15%.
Common-mode voltage input: 50V DC.
Temperature drift: Maximum current 50ppm/°C, maximum voltage 70ppm/°C.
Update cycle time: All four channels < 26ms.
Power supply: 24V (module bus) current consumption 70mA, 5V (module bus) current consumption 80mA, power dissipation 1.7W.

Functional characteristics
High precision: 14-bit resolution ensures the accuracy of measurement results.
Multi-channel: Supports 4 differential bipolar current/voltage input terminals, which can meet the requirements of various application scenarios.
Overvoltage protection: The input end is equipped with an overvoltage protection function, which can protect the module from damage caused by unexpected voltage surges.
Low power consumption: The module is designed for low power consumption, which helps to reduce the overall energy consumption of the system.
Compatibility: It can be used in conjunction with MTU (Module Terminal Unit) to achieve more flexible connection and configuration.
Good isolation performance: All four channels are isolated from a set of module buses, which can enhance the stability and security of the system.
Excellent temperature stability: It has outstanding temperature stability, ensuring the accuracy of measurement results in different temperature environments.