Application of CANopen in Servo Motor Control

摘要

Compared with other buses, CAN bus has low cost, long data transmission distance and high transmission rate, so it is widely used in the field of automation. In this paper, PLC is used as the master node, CANopen - PROFINET gateway is used as the intermediate node, and the motor driver is used as the slave node. The CAN application layer protocol CANopen realizes the remote control of the driver. Through the debugging of the TIA Portal and CANopen configuration software of Siemens automation tool platform, the conversion and communication of the protocol between PLC and motor controller are realized. At the same time, the process of configuring in three kinds of nodes is introduced. Using this scheme, PLC can easily realize the setting of motor controller parameters, the writing of control commands and the reading of related state quantities, that is, control and detection of motor operation.