EtherNet/IP (Ethernet Industrial Protocol) is an open industrial network protocol that enables communication between industrial automation devices, such as PLCs, sensors, and actuators, over standard Ethernet networks. Developed by Rockwell Automation and managed by ODVA, EtherNet/IP uses the Common Industrial Protocol (CIP) for real-time control and information exchange. It supports both real-time I/O messaging and standard TCP/IP communication, making it suitable for industrial environments requiring high reliability and interoperability. EtherNet/IP is widely adopted in manufacturing, process automation, and other industrial sectors due to its scalability, flexibility, and compatibility with existing Ethernet infrastructure.