DeviceNet based on the CAN bus is one of the world's leading device-level networks for industrial automation. In fact, more than 40% of end users surveyed by independent industry analysis report choosing DeviceNet over other networks. It offers robust, efficient data handling because it is based on Producer/Consumer technology. This modern communications model offers key capabilities that allow the user to effectively determine what information is needed and when.

The Components in DeviceNet

A device within a DeviceNet network is represented by an object model. The object model provides a template for organization and implementing the attributes (data). Services (methods or procedures) and behaviors of the components within a DeviceNet product. The following figure depicts the object model of DeviceNet Gateway (Group 2 Only).

Features

• A cost effective solution to lowlevel device networking
• Access to intelligence present in lowlevel devices
• Master/Slave and PeertoPeer capabilities
• Trunkline/dropline configurations
• Support for up to 64 nodes
• Selectable data rates of 125k baud, 250k baud, and 500k baud
• Use of Controller Area Network (CAN) technology for Media Access Control and Physical Signaling
• Connectionbased model to facilitate application to application communications
• Provisions for the efficient movement of I/O data
• Fragmentation for moving larger bodies of information
• Duplicate MAC ID detection