Introduction - If you have any usage issues, please Google them yourself
Fieldbus automation technology is currently one of the hotspots, known as the automation of computer local area network. It was a distributed control system between the nodes achieving real-time, reliable data communications to provide a strong technical support. CAN (Controller Area Network) field bus belonging to the scope of a multi-master mode serial communication bus, data communications and real time. Comparison with other field bus, CAN bus has a communication rate is high, easy, reliable, many features of higher cost.
An introduction to the CAN protocol that discusses the basics and key features.pdf