Design of CANopen Communication Interface for Servo Driver

With the rapid development of various types of automated production lines,robots and other distributed control system,the servo drivers which receive position commands by means of buttons and digital pulses can not meet the intelligent and network trends,the network interface of the servo driver arises at the historic moment.CANopen protocol and its drive and motion control sub-protocol DS402 were analyzed. CANopen slave station and the software implementation of the CANopen protocol stack were proposed. The hardware and software implementation process of CANopen interface was also given. The experimental results show that the servo driver executes the commands perfectly and returns the status,and the hardware and software design of CANopen interface are feasible.