Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/3522
Título: Cycle time properties of the PROFIBUS timed-token protocol
Autor: Tovar, Eduardo
Vasques, Francisco
Palavras-chave: Real-time communications
Timed-token protocol
Fieldbus networks
PROFIBUS
Data: 1999
Editora: Elsevier
Relatório da Série N.º: Computer Communications; Vol. 22, Issue 13
Resumo: A recent trend in distributed computer-controlled systems (DCCS) is to interconnect the distributed computing elements by means of multi-point broadcast networks. Since the network medium is shared between a number of network nodes, access contention exists and must be solved by a medium access control (MAC) protocol. Usually, DCCS impose real-time constraints. In essence, by real-time constraints we mean that traffic must be sent and received within a bounded interval, otherwise a timing fault is said to occur. This motivates the use of communication networks with a MAC protocol that guarantees bounded access and response times to message requests. PROFIBUS is a communication network in which the MAC protocol is based on a simplified version of the timed-token protocol. In this paper we address the cycle time properties of the PROFIBUS MAC protocol, since the knowledge of these properties is of paramount importance for guaranteeing the real-time behaviour of a distributed computer-controlled system which is supported by this type of network.
Peer review: yes
URI: http://hdl.handle.net/10400.22/3522
Versão do Editor: http://www.sciencedirect.com/science/article/pii/S0140366499001231
Aparece nas colecções:ISEP – CISTER – Artigos

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