Exploiting FDDI communication features to connect FieldBuses in process control environment
Salvatore Cavalieri, Antonella Di Stefano, Orazio Mirabella · 2002
The authors deal with the problem of the information exchange between processes in extended fieldbus systems. As is known, although most of the traffic in these systems is within a single bus, there is always a certain amount transiting from one fieldbus to another, often covering a certain distance. There is therefore the problem of finding ways to interconnect the various fieldbuses in such a way as to meet the time constraints imposed by the applications. The paper proposes and then assesses a way of interconnecting even a large number of fieldbuses, introducing delays which are compatible with process control requirements.>