以太網(wǎng)應(yīng)用于工業(yè)控制系統(tǒng)的實(shí)時(shí)性研究

從工業(yè)企業(yè)信息網(wǎng)絡(luò)的底層分析以太網(wǎng)應(yīng)用于工業(yè)控制系統(tǒng)的實(shí)時(shí)性，提出在設(shè)備節(jié)點(diǎn)端設(shè)計(jì)嵌人式控制器實(shí)現(xiàn)“傳輸前
等待優(yōu)先權(quán)以太網(wǎng)”(WBTPE)，在數(shù)據(jù)鏈路層采用兼容lEE1E802.1P&Q的工業(yè)交換機(jī)分割控制網(wǎng)絡(luò)的沖突域，實(shí)現(xiàn)對(duì)工業(yè)緊急數(shù)據(jù)的實(shí)
時(shí)傳輸，從而設(shè)計(jì)出符合實(shí)時(shí)應(yīng)用的企業(yè)信息系統(tǒng)工業(yè)以太網(wǎng)架構(gòu)。
關(guān)鍵詞工業(yè)以太網(wǎng)實(shí)時(shí)性傳輸前等待優(yōu)先權(quán)以太網(wǎng)EEE802.1P&Q
Abstrad There al-timep erformanceo fin dustrialE thernetis a nalyzedf romt helo werla yerof th ein dustrialen terprisein fonationn etwork.T hem ethod
of implementing "Wait-Before-Transmit Priority Etheret" (WB1PE)場designing embedded controler at the node of equipment side is proposed. The
real time transmission of industrial emergency data is implemented場break噸up collision domain of control network through industrial switcher compatible
with IEEE8M.lp&q protocol, thus the architecture frame of industrial Etheret for enterprise information system conforming real time application is
designed.
Keywords IndustrialE thernet Realti mep erformance Wait-before-transmitp riorityE theret IEEE802.1P&Q