Foundation Fieldbus; time-critical data; time-available data; token-passing; delay performance; mathematical model
Issue Date
2007-11
Publisher
IFAC
Citation
IFAC Proceedings Volumes (IFAC-PapersOnline), 7th IFAC International Conference on Fieldbuses and Networks in Industrial and Embedded Systems, v. 7, Page. 137-142
Abstract
This paper introduces a mathematical model for analyzing the delay
performance of time-critical and time-available data in the Foundation Fieldbus data link
layer token-passing service. The mathematical model introduces the concept of virtual
token rotation time to account for the dependency of the token rotation times on
prioritized data in analyzing their data latency. The validity of the analytical model was
verified using a simulation experiment.