CANopen protocol

CANopen provides several communication objects, which enable device designers to implement desired network behavior into a device. With these communication objects, device designers can offer devices that can communicate process data, indicate device-internal error conditions or influence and control the network behavior. In their devices , device designers may also support CANopen functions that enable the devices to participate in point-to-point communication coherences in the network. As CANopen defines the internal device structure, the manufacturer of a device knows exactly where to access information that is communicated via the bus.

The webpages sub-layered to "Protocol" on the right hand side provide a brief overview about the services offered by CANopen.