Development and Application of Backplane-type EtherCAT Slave Controller

摘要

The EtherCAT real-time Ethernet technology that proposed by Beckhoff Company,is now widely used in industrial automation and in motion control fields.In this paper,a slave module design adopted the backplane type is carded out,based on in-depth study of the ET1200 chip and the Ebus protocol,including a communication board EKM which regards PIC microcontroller as microprocessor,a board EKS-IO which is used for digital IO expansion,and a stepping motor control board EKS-S.Then the overall debugging and application on a warehouse device show that the EtherCAT slave controller meets the performance requirements of EtherCAT bus communication,with better reliability and a certain practical value.