Title :
Tool support for evaluating temporal characteristics of industrial protocols
Author :
Pereira, Carlos E. ; Becker, Leandro B. ; Husemann, Ronaldo ; Wild, Rafael ; Gotz, Marcelo
Author_Institution :
Dept. de Engenharia Eletrica, Univ. Fed. do Rio Grande do Sul, Porto Alegre, Brazil
Abstract :
In fieldbus automation systems, the correctness of the real time behavior depends not only on the intra-device processing and process scheduling, but also on the inter-device communication that exchanges process variables information. The article presents a tool to evaluate temporal characteristics of industrial communication protocols. It can monitor runtime timing requirements of proposed communication, according to variable conditions affecting the communication, and present graphically time characteristics of the resulting validation. Two case studies, one evaluating the real time characteristics of the Foundation Fieldbus protocol and another one evaluating timing characteristics of the CSMA medium access protocol used are presented in order to validate the features of the presented tool
Keywords :
field buses; industrial control; protocols; real-time systems; CSMA medium access protocol; Foundation Fieldbus protocol; case studies; fieldbus automation systems; industrial communication protocols; inter-device communication; intra-device processing; process scheduling; process variables information; real time behavior correctness; real time characteristics; runtime timing requirements; temporal characteristic evaluation; time characteristics; timing characteristics; tool support; variable conditions; Access protocols; Automation; Communication industry; Condition monitoring; Field buses; Job shop scheduling; Multiaccess communication; Real time systems; Runtime; Timing;
Conference_Titel :
Factory Communication Systems, 2000. Proceedings. 2000 IEEE International Workshop on
Conference_Location :
Porto
Print_ISBN :
0-7803-6500-3
DOI :
10.1109/WFCS.2000.882550
