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Real-time fieldbus communications using Profibus networks

dc.contributor.authorTovar, Eduardo
dc.contributor.authorVasques, Francisco
dc.date.accessioned2014-02-03T11:14:20Z
dc.date.available2014-02-03T11:14:20Z
dc.date.issued1998
dc.description.abstractThis paper provides a comprehensive study on how to use Profibus fieldbus networks to support real-time industrial communications, that is, on how to ensure the transmission of real-time messages within a maximum bound time. Profibus is base on a simplified timed token (TT) protocol, which is a well-proved solution for real-time communication systems. However, Profibus differs with respect to the TT protocol, thus preventing the application of the usual TT protocol real-time analysis. In fact, real-time solutions for networks based on the TT protocol rely on the possibility of allocating specific bandwidth for the real-time traffic. This means that a minimum amount of time is always available, at each token visit, to transmit real-time messages, transversely, with the Profibus protocol, in the worst case, only one real-time message is processed per token visit. The authors propose two approaches to guarantee the real-time behavior of the Profibus protocol: (1) an unconstrained low-priority traffic profile; and (2) a constrained low-priority traffic profile. The proposed analysis shows that the first profile is a suitable approach for more responsive systems (tighter deadlines), while the second allows for increased nonreal-time traffic throughputpor
dc.identifier.doi10.1109/41.808018pt_PT
dc.identifier.issn0278-0046
dc.identifier.urihttp://hdl.handle.net/10400.22/3597
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherIEEEpor
dc.relation.ispartofseriesIndustrial Electronics; Vol. 46, Issue 6
dc.relation.publisherversionhttp://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=808018&abstractAccess=no&userType=instpor
dc.subjectField busespor
dc.subjectProtocolspor
dc.subjectReal-Time Systemspor
dc.titleReal-time fieldbus communications using Profibus networkspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1251por
oaire.citation.startPage1241por
oaire.citation.titleIndustrial Electronicspor
oaire.citation.volume46por
person.familyNameTovar
person.givenNameEduardo
person.identifier.ciencia-id6017-8881-11E8
person.identifier.orcid0000-0001-8979-3876
person.identifier.scopus-author-id7006312557
rcaap.rightsclosedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication80b63d8a-2e6d-484e-af3c-55849d0cb65e
relation.isAuthorOfPublication.latestForDiscovery80b63d8a-2e6d-484e-af3c-55849d0cb65e

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