Setting target rotation time in PROFIBUS based real-time distributed applications

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Tovar, Eduardo ; Vasques, Francisco (1998)
  • Publisher: Instituto Politécnico do Porto. Instituto Superior de Engenharia do Porto. FEUP.
  • Subject: Fieldbus networks | Distributed computer control systems | Real-time communication

In this paper, we analyse the ability of Profibus fieldbus to cope with the real-time requirements of a Distributed Computer Control System (DCCS), where messages associated to discrete events must be made available within a maximum bound time. Our methodology is based on the knowledge of real-time traffic characteristics, setting the network parameters in order to cope with timing requirements. Since non-real-time traffic characteristics are usually unknown at the design stage, we consider an operational profile where, constraining non-real-time traffic at the application level, we assure that realtime requirements are met. FLAD; ISEP
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