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3. Communication problems
3.1 Fieldbus
The late 1980s saw the development of a substantial range of communication networks for use in automated systems, designed to replace analog wire-to-wire links between sensors/actuators and processing units (PLC (programmable logic controller), DCS (digital control system – command)...). These include field networks, equipment networks and sensor/actuator networks
Field or cell networks such as WorldFip and Profibus-FMS have sophisticated protocols and enable different types of exchange (producer/consumer (WorldFip) or client/server (Profibus)), which can be cyclical (periodic) or acyclical (aperiodic). Messaging services can...
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Communication problems
Operational safety aspects
Bibliography
References
Theses
- - http://sudoc.abes.fr
- GEHIN (A.L.) - Analyse fonctionnelle et modèle générique des capteurs intelligents : application à la surveillance de l'anesthésie. - Thèse de doctorat de l'Université de Lille 1, 1994....
Standardization
International Electrotechnical Commission IEC
IEC 61508 (2004) Functional Safety of electrical/electronics/programmable electronic safety-related-systems, Part – 1 to 7.
IEC 61131 (2004) Programmable controllers, Part 1 to 8.
IEC 61131-3 (2003) Programmable controllers – Part...
Organizations
Discussions are continuing on safety and communication aspects within the framework of the SEE's GT 18-4 CIAME (Intelligent Components for Automation and Measurement) technical group.
Société de l'Électricité, de l'Électronique et des Technologies de l'Information et de la Communication, SEE.
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