Based on the CAN-bus line distributional control system, in fact, it is a
network which is composed by the CAN pitch points and the CAN-bus line. The system has very strong extension, the pitch points on the line may increase wilfully, and each pitch point may transmit messages to the can-bus line. This paper takes two pitch points control system as an example, introducs the CAN fieldbus characteristic, CAN controller SJA1000 function and the context of the CAN protocol 2. 0B,elaborates a distributional control system which is based on the CAN-bus line, and its system performance request, the hardware constructs and the software design of the control system and the application result, from above we can know the merit of the CAN-bus line and its general design process. in an industry control system.
Keywords CAN-bus line CAN pitch points Messages
CANprotocol2.0B