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

• Autor(es): Tovar, Eduardo ; Vasques, Francisco
• Data: 1998
• Identificador Persistente: http://hdl.handle.net/10400.22/3517
• Origem: Repositório Científico do Instituto Politécnico do Porto
• Assunto(s): Fieldbus networks; Real-time communication; Distributed computer control systems
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

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.