Abstract:

A communication system of CAN multi-point real-time date based on C8051 is designed to meet the needs of real-time monitoring multiple devices in industry.The system has the features of high-speed,low latency,low error rate and high stability.Compared with the traditional RS232 and 485 communications systems,the system has a unique non-destructive CAN-bus arbitration and message filtering.It makes communication between each device easy and fast.The result shows that the CAN system is better in communications quality than the traditional ones.It can be used for industrial real-time monitoring multiple devices.

Key words: CAN bus;CAN open;multi-point real-time date communication;C8051F040