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Percorrer por autor "Kalogeras, A."

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  • Integration of TCP/IP and PROFIBUS protocols
    Publication . Pereira, Nuno; Pacheco, Filipe; Pinho, Luís Miguel; Prayati, A.; Nikoloutsos, E.; Kalogeras, A.; Hintze, E.; Adamczyk, H.; Rauchhaupt, L.
    Recent technological developments are pulling fieldbus networks to support a new wide class of applications, such as industrial multimedia applications. These applications are usually supported by the widely used TCP/IP stack. It is thus essential to provide support to TCP/IP based applications, in fieldbus networks. This paper presents an effort that is being carried out to integrate the TCP/IP and PROFIBUS stacks, in order to support industrial multimedia applications, whilst guarantying the timing requirements of control-related traffic.
    2002Documento de conferência Acesso aberto Ver mais
  • Supporting internet protocols in master-slave fieldbus networks
    Publication . Pacheco, Filipe; Tovar, Eduardo; Kalogeras, A.; Pereira, Nuno
    In this paper we describe how to integrate Internet Protocols (IP) into a typical hierarchical master-slave fieldbus network, supporting a logical ring token passing mechanism between master stations. The integration of the TCP/IP protocols in the fieldbus protocol rises a number of issues that must be addressed properly. In this paper we particularly address the issues related to the conveyance of IP fragments in fieldbus frames (fragmentation/de-fragmentation) and on how to support the symmetry inherent to the TCP/IP protocols in fieldbus slaves, which lack communication initiative.
    2001Documento de conferência Acesso aberto Ver mais