以太网应用于工业控制系统的实时性研究

从工业企业信息网络的底层分析以太网应用于工业控制系统的实时性，提出在设备节点端设计嵌人式控制器实现“传输前
等待优先权以太网”(WBTPE)，在数据链路层采用兼容lEE1E802.1P&Q的工业交换机分割控制网络的冲突域，实现对工业紧急数据的实
时传输，从而设计出符合实时应用的企业信息系统工业以太网架构。
关键词工业以太网实时性传输前等待优先权以太网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)场designing embedded controler at the node of equipment side is proposed. The
real time transmission of industrial emergency data is implemented场break吨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