The Instek ASR-004 Device Net Interface Card is an optional accessory for use with the ASR-6000 Series High Performance AC/DC Power Source. The interface card allows the user to control the ASR-6000 remotely. The digital, multi-drop network connects and serves as a communication network between industrial controllers and I/O devices. Insert the DeviceNet card into the slot of rear panel, click it all the way into place, and fasten the screws to fix it into place. Its data link layer utilizes CAN (Controller Area Network) for communication between smart devices.

DeviceNet is one of the kind of the network protocol base on the CAN bus. It allows direct peer to peer data exchange between nodes in organized and deterministic manner. The network managment function specified in DeviceNet simplifies project design, implementation and diagnosis by providing standard mechanism for network start-up and error management. DeviceNet commnuciation protocol is base on the concept of connection. Must establish a connection with a device in order to exclude information with device. Each getway implement predefined master or slave connection setting through the DeviceNet network.