Application of CAN bus in data arm communication system

The realistic status of data arm communication system is analysed in this paper. A data arm communication scheme based on CAN bus is proposed. The hardware and software structure of the the data arm communication scheme is introduced. On the basis, the CAN bus protocol is established to coordinate the bus information flows, reduce the time required for bus conflict arbitration. Experiment show that the system meets the accuracy, real-time, reliability and convenience of the data arm.