EtherNet is an Ethernet-based industrial control protocol developed by Rockwell Automation. It is mainly used in the field of industrial automation and control, supports CIP (Common Industrial Protocol) and TCP/IP protocols, and can achieve high-speed data transmission and real-time communication. The EtherNet protocol has the characteristics of high reliability, easy expansion and security, and is widely used in the interconnection of various industrial equipment and systems, including automated production lines, robots, sensors, etc.