The ABB PPD113 – B03 – 10 – 150000 is a controller module designed for industrial automation control systems2. It is mainly used for signal acquisition and control, capable of converting analog and digital signals of field equipment into electrical signals and transmitting them to the control system, while also receiving electrical signals from the control system to control the field equipment2. It features high precision, high reliability, and ease of use, and is widely used in various automation applications such as industrial automation, power system monitoring, petrochemical, and energy management2. It adopts advanced control algorithms and intelligent technologies to provide efficient and accurate process control and management2. In addition, it can be used in excitation control systems to control DC motor excitation systems, offering various excitation control modes such as constant current, constant voltage, and constant power, and is equipped with perfect protection functions2.