Effect of Hierarchical Topology on Industrial Ethernet
Guilan Luo · Journal of Northeastern University · 2008
In order to analyze the rationality of hierarchical topology in Industrial Ethernet,the parameters of complicated fieldbus networks are abstracted so as to develop a network model at levels.The hierarchical topology network is compared with single bus network in respect to such performance indices as time delay,transmission speed,packet loss rate and how to deal with emergencies.The hierarchical topology network has not solved essentially the problem of uncertainty,but with the help of it,the performance of Industrial Ethernet has been optimized. The two topological networks in comparison are exactly evaluated,and in what case each of them is applicable is discussed separately.