EtherNet/IP is a high-level industrial networking protocol that adapts the Common Industrial Protocol (CIP) for use over standard Ethernet. The "IP" in its name stands for "Industrial Protocol," distinct from "Internet Protocol." It is one of the leading industrial Ethernet standards and is managed by the ODVA (Open DeviceNet Vendors Association).
EtherNet/IP utilizes standard Ethernet hardware, including the same cables, switches, and network interface cards found in office environments. This allows industrial automation systems to leverage the cost-effectiveness, high speed (e.g., 100 Mbps or 1 Gbps), and widespread availability of commercial off-the-shelf technology.
Beyond hardware, EtherNet/IP defines how control data is structured using the object-oriented CIP. This system presents devices as collections of objects with attributes (data), services (commands), and behaviors. This structure ensures seamless interoperability between devices from different manufacturers, such as PLCs, robots, sensors, and programmable power supplies. The protocol supports both explicit messaging for configuration and data collection, as well as implicit I/O messaging for real-time control.
For programmable power supplies, an EtherNet/IP interface enables tight integration into PLC-controlled automation systems, making it an ideal choice for manufacturing, robotics, and process control applications.