DeviceNet is a network protocol used in the automation industry to interconnect control devices for data exchange. It utilizes the Common Industrial Protocol over a Controller Area Network media layer and defines an application layer to cover a range of device profiles.
Typical applications include information exchange, safety devices, and large I/O control networks.
Technical Overview Define the OSI seven-layer architecture model the physical layer, data link layer and application layer
- Network in addition to the signal, but also including power, self-powered support network function (generally used in small devices, such as photo detectors, limit switches or proximity switches, etc.)
- Allows three bit rates: 125 Kbit / s, 250 Kbit / s and 500 Kbit / s, the main trunk under different bit rates (trunk) is inversely proportional to the length and bitrate
- Flat cable network can be used
- Single network can have up to 64 nodes, node address (called MAC ID in DeviceNet) by 0–63. Usually the default address for a new out of the box device is 63
- Duplicate node address detection function
- Supports master-slave and end-to-end (peer-to-peer) communication architecture, but most of the equipment is operating in the former network architecture
- Multiple network allows a single master function
- Can be used in high-noise environments