Publication
Real-time fieldbus communications using Profibus networks
| dc.contributor.author | Tovar, Eduardo | |
| dc.contributor.author | Vasques, Francisco | |
| dc.date.accessioned | 2014-02-03T11:14:20Z | |
| dc.date.available | 2014-02-03T11:14:20Z | |
| dc.date.issued | 1998 | |
| dc.description.abstract | This 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 throughput | por |
| dc.identifier.doi | 10.1109/41.808018 | pt_PT |
| dc.identifier.issn | 0278-0046 | |
| dc.identifier.uri | http://hdl.handle.net/10400.22/3597 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | IEEE | por |
| dc.relation.ispartofseries | Industrial Electronics; Vol. 46, Issue 6 | |
| dc.relation.publisherversion | http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=808018&abstractAccess=no&userType=inst | por |
| dc.subject | Field buses | por |
| dc.subject | Protocols | por |
| dc.subject | Real-Time Systems | por |
| dc.title | Real-time fieldbus communications using Profibus networks | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 1251 | por |
| oaire.citation.startPage | 1241 | por |
| oaire.citation.title | Industrial Electronics | por |
| oaire.citation.volume | 46 | por |
| person.familyName | Tovar | |
| person.givenName | Eduardo | |
| person.identifier.ciencia-id | 6017-8881-11E8 | |
| person.identifier.orcid | 0000-0001-8979-3876 | |
| person.identifier.scopus-author-id | 7006312557 | |
| rcaap.rights | closedAccess | por |
| rcaap.type | article | por |
| relation.isAuthorOfPublication | 80b63d8a-2e6d-484e-af3c-55849d0cb65e | |
| relation.isAuthorOfPublication.latestForDiscovery | 80b63d8a-2e6d-484e-af3c-55849d0cb65e |