How to be sure that switched Ethernet networks satisfy the real-time requirements of an industrial application

摘要

The Ethernet network is more and more used to interconnect industrial devices. The objective of this paper is to study the performances of such a network to support real-time communications. For this, we firstly propose a general representation to model a switched Ethernet network by using a sequence of elementary components such as buffers, multiplexers, etc. Secondly, we aggregate the individual temporal properties of each component given in the Crux' survey to obtain a global formula enabling to calculate the maximum end-to-end delay for any industrial communication scenarios.