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Distributed computing for the factory-floor: a real-time approach using WorldFIP networks

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Název: Distributed computing for the factory-floor: a real-time approach using WorldFIP networks
Autoři: Tovar, Eduardo, Vasques, Francisco
Informace o vydavateli: Elsevier
Rok vydání: 2000
Témata: Factory-floor communications, Hard real-time systems, WorldFIP Networks, Distributed computer-controlled systems, manag, info
Popis: Field communication systems (fieldbuses) are widely used as the communication support for distributed computer-controlled systems (DCCS) within all sort of process control and manufacturing applications. There are several advantages in the use of fieldbuses as a replacement for the traditional point-to-point links between sensors/actuators and computer-based control systems, within which the most relevant is the decentralisation and distribution of the processing power over the field. A widely used fieldbus is the WorldFIP, which is normalised as European standard EN 50170. Using WorldFIP to support DCCS, an important issue is “how to guarantee the timing requirements of the real-time traffic?” WorldFIP has very interesting mechanisms to schedule data transfers, since it explicitly distinguishes periodic and aperiodic traffic. In this paper, we describe how WorldFIP handles these two types of traffic, and more importantly, we provide a comprehensive analysis on how to guarantee the timing requirements of the real-time traffic.
Druh dokumentu: article in journal/newspaper
Jazyk: English
Relation: http://hdl.handle.net/10400.22/3643
Dostupnost: http://hdl.handle.net/10400.22/3643
Rights: undefined
Přístupové číslo: edsbas.FC681BE4
Databáze: BASE
Popis
Abstrakt:Field communication systems (fieldbuses) are widely used as the communication support for distributed computer-controlled systems (DCCS) within all sort of process control and manufacturing applications. There are several advantages in the use of fieldbuses as a replacement for the traditional point-to-point links between sensors/actuators and computer-based control systems, within which the most relevant is the decentralisation and distribution of the processing power over the field. A widely used fieldbus is the WorldFIP, which is normalised as European standard EN 50170. Using WorldFIP to support DCCS, an important issue is “how to guarantee the timing requirements of the real-time traffic?” WorldFIP has very interesting mechanisms to schedule data transfers, since it explicitly distinguishes periodic and aperiodic traffic. In this paper, we describe how WorldFIP handles these two types of traffic, and more importantly, we provide a comprehensive analysis on how to guarantee the timing requirements of the real-time traffic.