Real-time performance analysis of a fieldbus-based network

Author

Chen Xiaoming

Author_Institution

Dept. of Mech. Eng., Nat. Univ. of Singapore, Singapore

fYear

2002

fDate

11-13 Feb. 2002

Firstpage

113

Lastpage

118

Abstract

Message delay is one of the main issues in a real-time fieldbus-based distributed control system (DCS). Serious delay will degrade the performance of a control system and even invalidate it. Industry-used fieldbuses try to improve their real-time capacity using different algorithms. In this paper, we investigate the real-time performance of the fieldbus-based network. We take LonWork as our model. The media access control (MAC) algorithm, which mainly determines the performance of a network, is described. On the basis of a mathematical model, we analyze the throughput of the system. Finally, the message delay is presented.

Keywords

access protocols; carrier sense multiple access; computer networks; delays; field buses; message passing; real-time systems; CSMA protocol; LonWork; carrier sense multi access; distributed control system; field buses; fieldbus-based network; media access control; message delay; real-time system; throughput analysis; Control systems; Degradation; Delay; Distributed control; Electrical equipment industry; Mathematical model; Media Access Protocol; Performance analysis; Real time systems; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Decision and Control, 2002. Final Program and Abstracts

Conference_Location

Adelaide, SA, Australia

Print_ISBN

0-7803-7270-0

Type

conf

DOI

10.1109/IDC.2002.995375

Filename

995375