The paper firstly discusses the EtherCAT real-time Ethernet technology in detail, including operating principle, communication protocol and superior performance of EtherCAT Ethernet , synchronization, high-speed and so on. To show how to build up a master system based on configuration software TwinCAT and how to design a slave system considering the features of application, the methods of developing systems based on EtherCAT technology are proposed. Finally, a plate loading and unloading system based on EtherCAT technology is designed to obtain a faster response speed and higher synchronization accuracy. The system has realized high-speed remote data transmission and high-precision velocity control for Multi-axis which the traditional fieldbus can’t achieve.
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