The Characteristics Analysis about Transmission Time Delay of Industrial Ethernet

The Ethernet has gotten extensive application in industrial networked control system at present. In the NCS, the main factor which affects the performance and stability of the system is the introduce of the conflict among the network nodes. We use the queuing theory to analyze this problem, which deduces the sending delay and queuing delay which caused by the conflict among the network nodes. Then we can obtain the main factors which affects the utilization rate of channel. What's more, we deduce some instructive formulations which are useful for the analysis and design of the NCS. Moreover, we give the simulation of these.