A SERCOS-Based Distributed Control System

SERCOS is an international standard for communication in the digital servo system and electrical drives.It is of open structure,compatible and real-time capability.The distributed control system based on SERCOS is designed in this paper.PC with a SERCOS interface serves as the host computer,and the instructions are sent to slave computers through a fiber optic ring.The slave computer,including DSP,the drive and the feedback circuit form a closed loop to control the motor.Experiment results are also given.