DeviceNet is a communication protocol used in industrial automation to connect various devices like sensors, actuators, and controllers. It operates on the CAN (Controller Area Network) bus, allowing devices to communicate with each other in real-time. This helps streamline processes and improve efficiency in manufacturing environments. The protocol supports a wide range of devices and is designed for easy integration and scalability. DeviceNet uses a master-slave architecture, where a master device controls the communication with multiple slave devices. This structure simplifies wiring and reduces installation costs, making it a popular choice in industrial settings.