The communication of CAN bus used in synchronization control of multi-motor based on DSP

摘要

As an industrial field-bus, and because of reliable communication, real-time, flexibility, strong anti-jamming capability, long transmission distance etc, CAN bus is widely applied in all kinds of control field. The high-speed printing presses with multiple color as the background, this paper presents the communication of CAN bus used in synchronization control of multi-motor based on DSP, the combination of PC and DSP controllers by a CAN bus communication card, realizes many sets of permanent magnet synchronous motors coordination synchronous control, makes the synchronous control system more accurate and more flexible. This means of communication lay a foundation for better application in a lot of distributed control system.