A communication support for real-time distributed computer controlled systems

• Autor(es): Tovar, Eduardo ; Vasques, Francisco
• Data: 1998
• Identificador Persistente: http://hdl.handle.net/10400.22/3649
• Origem: Repositório Científico do Instituto Politécnico do Porto
• Assunto(s): P-NET; Real-time communications; Fieldbus networks; Scheduling
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

In this paper, we analyse the ability of P-NET [1] fieldbus to cope with the timing requirements of a Distributed Computer Control System (DCCS), where messages associated to discrete events should be made available within a maximum bound time. The main objective of this work is to analyse how the network access and queueing delays, imposed by P-NET’s virtual token Medium Access Control (MAC) mechanism, affect the realtime behaviour of the supported DCCS.