介绍一种EtherCAT实时工业以太网现场总线技术,研究EtherCAT工作原理,通信协议及主、从站实现方法;针对一般工业现场测控需求,利用EtherCAT总线技术,设计基于工控机的主站管理软件和基于FPGA的嵌人式从站软硬件；应用结果表明,该分布式测控系统运行稳定可靠,数据丢失率低,实时性好.%A more reliable distributed measurement and control system is introduced. Based on EtherCAT bus-, in this thesis. And They are introduced, the principle, technical characteristic and capability of EtherCAT. According to the most tasks demand of measuring and controU the design method was presented, the process of how to configuring the master node based on IPC and Slave node based on FPGA. And how to managing the system. The application results show that there are low data loss rate and more real-time, and the performance is stable and reliable in this system.
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