Synchronization in a PLC/VAX based control and data acquisition system of a nuclear fusion experiment (Articolo in rivista)

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  • Synchronization in a PLC/VAX based control and data acquisition system of a nuclear fusion experiment (Articolo in rivista) (literal)
Anno
  • 1990-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/0168-9002(90)91418-B (literal)
Alternative label
  • V. Schmidt; G. Flor; O. N. Hemming; A. Luchetta; G. Manduchi; S. Vitturi (1990)
    Synchronization in a PLC/VAX based control and data acquisition system of a nuclear fusion experiment
    in NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT; ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, AMSTERDAM (Paesi Bassi)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • V. Schmidt; G. Flor; O. N. Hemming; A. Luchetta; G. Manduchi; S. Vitturi (literal)
Pagina inizio
  • 154 (literal)
Pagina fine
  • 160 (literal)
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  • E-ISSN: 1872-9576 (literal)
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  • http://www.sciencedirect.com/science/article/pii/016890029091418B (literal)
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  • 293 (literal)
Rivista
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  • 7 (literal)
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  • 1-2 (literal)
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  • Google Scholar (literal)
  • ISI Web of Science (WOS) (literal)
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  • 1 : Hahn-Meitner-Institut Berlin GmbH, Berlin, Germany; / 2,4,5,6 : Istituto Gas Ionizzati, Associazione EURATOM-ENEA-CNR, Corso Stati Uniti 4, 35020 Padova, Italy; / 3 : SCICON s.r.l.,Milano, Italy. (literal)
Titolo
  • Synchronization in a PLC/VAX based control and data acquisition system of a nuclear fusion experiment (literal)
Abstract
  • This paper describes the concept and implementation details of the synchronization mechanisms used in the control and data-acquisitionsystem of the RFX (Reversed-Field Experiment) nuclear-fusion experimental device, at present under construction in Padova, Italy, within the framework of the co-ordinated nuclear-fusion research programme of the European Communities. The system employs industrial PLCs for the \"slow\" control and monitoring functions, and aVAX-based CAMAC for the \"fast\" functions of trigger-signal generation and dataacquisition during the experiment pulses. All subsystems communicative via Ethernet, using compatible software protocols. The operational sequence of the complete system is governed by a single state machine implemented on aPLC-based supervisor system. Equivalent \"slave\" state machines are implemented on all other subsystems (PLC-and VAX-based). These state machines are synchronized by means of the exchange of messages via Ethernet. This paper deals in detail with the following components which are involved in systemsynchronization: - the Message Exchange System which implements the system-wide exchange of short messages; - the Scheduler programs which implement the state machine on the various computing nodes, and which make use of the Message Exchange System. (literal)
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