介紹了一種運用工業(yè)以太網(wǎng)技術的過程控制系統(tǒng)及其網(wǎng)絡應用層協(xié)議的設計思想。控制系統(tǒng)的網(wǎng)絡架構分為兩層；以太網(wǎng)節(jié)點的硬件基于ARM7 內(nèi)核的處理器；軟件基于uClinux 嵌入式操作系統(tǒng)；網(wǎng)絡的應用層協(xié)議自行定義，由C 語言實現(xiàn)。經(jīng)現(xiàn)場運行調(diào)試，控制系統(tǒng)和以太網(wǎng)節(jié)點均能穩(wěn)定運行，且應用層協(xié)議的實時性及容錯性是能夠得到保障的。
關鍵詞：工業(yè)以太網(wǎng)，控制系統(tǒng)，網(wǎng)絡架構，通信，應用層協(xié)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