Abstract (EN):
This paper proposes a virtual token-passing mechanism, which allows the coexistence of legacy industrial Ethernet devices with enhanced (real-time) devices in the same bus network. The VTPE mechanism allows the implementation of real-time (RT) applications upon legacy bus-based industrial networks, enforcing the adequate timing behavior of the supported applications. It enables the traffic separation between legacy Ethernet stations and enhanced (RT) stations. A set of experiments has been performed, which allowed to measure the message access delay and the token rotation time. The achieved results clearly demonstrate that the VTPE architecture enables the support of RT communication upon legacy bus-based industrial Ethernet networks, even when the communication medium is shared with uncontrolled traffic sources.
Language:
English
Type (Professor's evaluation):
Scientific
Notes:
Enforcing the timing behavior of real-time stations in legacy bus-based industrial Ethernet networks
Authors: Ricardo Moraes, Francisco Borges Carreiro, Paulo Bartolomeu, Valter Silva, José Alberto Fonseca, Francisco Vasques
Enforcing the timing behavior of real-time stations in legacy bus-based industrial Ethernet networks 2011 Article
Published in:
· Journal
Computer Standards & Interfaces archive
Volume 33 Issue 3, March, 2011
Pages 249-261
Elsevier Science Publishers B. V. Amsterdam, The Netherlands, The Netherlands
table of contents doi>10.1016/j.csi.2010.05.002
No. of pages:
13