基于Modbus协议的数控排钻伺服定位系统

Positioning Servo System for Numerical Control Ranges Drill Based on Modbus Protocol

设计了基于交流伺服驱动和Modbus通信协议的数控排钻PLC控制系统。采用一体化PC机作上位机,利用VB编程的人机界面实现基于Modbus协议的PLC通信,完成交流伺服电机的精确定位控制;采用防碰撞算法解决了多台伺服电机定位过程中可能发生碰撞的问题。经现场调试,该系统达到了满意的定位控制效果。

Designed PLC control system for numerical control ranges drill on the basis of AC servo drive and Modbus ：ommunication protocol. With an integration PC as host computer, applied VB programming human- machine interface to achieve the PLC communication based on Modbus protocol and complete the precise positioning control for AC servo aaotor. Used anti-collision algorithm to solve the problem that multiple servo motors may arise collision during positioning. Fhrough on-site testing the position control system achieved satisfactory effects.