從工業企業信息網絡的底層分析以太網應用于工業控制系統的實時性，提出在設備節點端設計嵌人式控制器實現“傳輸前
等待優先權以太網”(WBTPE)，在數據鏈路層采用兼容lEE1E802.1P&Q的工業交換機分割控制網絡的沖突域，實現對工業緊急數據的實
時傳輸，從而設計出符合實時應用的企業信息系統工業以太網架構。
關鍵詞工業以太網實時性傳輸前等待優先權以太網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