The core function of the analog signal conversion and processing module is to receive analog signals output by various sensors such as temperature sensors and pressure sensors, and precisely convert these continuously changing analog signals into digital signals, so that other units of the frequency converter or industrial control system can perform subsequent data processing and logical control. Multi-channel signal acquisition, based on the characteristics and product descriptions of similar industrial modules, can support multiple analog input channels and simultaneously collect signals from multiple sensors, making it suitable for industrial scenarios requiring multi-parameter synchronous monitoring. The isolation protection guarantee is equipped with an internal isolation protection mechanism, which can effectively prevent electromagnetic interference, voltage fluctuations and other issues in industrial sites from causing damage to the module itself and the connected control equipment, and enhance the operational stability and reliability of the entire control system in complex industrial environments. As a dedicated module for industrial automation, industrial system compatibility can be seamlessly integrated with ABB's related distributed control systems or programmable logic controllers and other devices, enhancing the signal acquisition efficiency of industrial processes and ensuring the accuracy of the automation control links. It is often used in fields such as petrochemicals and intelligent manufacturing that have high requirements for control accuracy and stability.