【摘要】 首先介绍了E thernet,Con tro lN et,CAN三种典型的控制总线,讲述了其性能和规范,根据控制系统实时性要求高的特点,重点比较分析了其M AC子层的性能特点,分析给出了三种控制总线传输时延的估算方法,并通过一个实例介绍了如何根据系统要求进行控制总线的选择。为控制系统设计中总线选择问题提供理论指导。更多还原

【Abstract】 Ethernet,ControlNet and CAN,the three typical control bus are described and their characteristics of function of the MAC sub-layer are analyzed.The delay of the three typical control bus has been estimated and it is pointed out how to choose a kind of control bus by introducing an aexample.It is theorically significant for us to choose control bus in the design of a control system.更多还原