介紹了一種運用工業以太網技術的過程控制系統及其網絡應用層協議的設計思想?？刂葡到y的網絡架構分為兩層；以太網節點的硬件基于ARM7 內核的處理器；軟件基于uClinux 嵌入式操作系統；網絡的應用層協議自行定義，由C 語言實現。經現場運行調試，控制系統和以太網節點均能穩定運行，且應用層協議的實時性及容錯性是能夠得到保障的。
關鍵詞：工業以太網，控制系統，網絡架構，通信，應用層協議
Abstract: The method of designing an industrial ethernet based process control system and application layer protocal is introduced. The network architechure of control system consists of two layers; The hardware architechure of ethernet node is based on ARM7 core processor; The software architechure is based on uClinux embedded OS; The application layer protocal is customed and is realized by C language. Having been tested for a while, the whole system is reliable.
Key words: Industrial Ethernet , Control System , Network Architechure , Communication , Application Layer Protocal