IEC IEC 61784-3 Edition 4.02021-02 INTERNATIONAL STANDARD NORME NTERNATIONALE colour nside Industrial communication networks - Profiles - Part 3: Functional safety fieldbuses - General rules and profile definitions Réseaux de communication industriels - Profils - Partie 3: Bus de terrain de sécurité fonctionnelle - Regles générales et définitions de profils IEC 61784-3:2021-02(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright @ 2021 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC your local IEC member National Committee for further information. Droits de reproduction reservés. Sauf indication contraire, aucune partie de cette publication ne peut etre reproduite ni utilisée sous quelque forme que ce soit et par aucun procéde, éelectronique ou mécanique, y compris la photocopie et les microfilms, sans I'accord écrit de I'lEC ou du Comite national de I'IEC du pays du demandeur. Si vous avez des questions sur le copyright de I'lEC ou si vous desirez obtenir des droits supplementaires sur cette publication, utilisez les coordonnées ci-apres ou contactez le Comité national de I'lEC de votre pays de résidence. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varembé [email protected] CH-1211 Geneva 20 www.iec.ch Switzerland About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigendum or an amendment might have been published. IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the publications previews. With a subscription you will always variety of criteria (reference number, text, technical committee, ...). It also gives information on projects, replaced have access to up to date content tailored to your needs. and withdrawn publications. Electropedia - www.electropedia.org IEc Just Published - webstore.iec.ch/justpublished The world's leading online dictionary on electrotechnology, Stay up to date on all new IEC publications. Just Published containing more than 22 000 terminological entries in English details all new publications released. Available online and and French, with equivalent terms in 18 additional languages. once a month by email. Also known as the international Electrotechnical Vocabulary (IEV) online. IE Customer Service Centre - webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: [email protected]. A propos de I'IEc Normes internationales pour tout ce qui a trait a I'eélectricite, a I'éelectronique et aux technologies apparentées. A propos des publications IEc Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez I'édition la plus recente, un corrigendum ou amendement peut avoir éte publie. Recherche de publications IEC - IEC online collection - oc.iec.ch Découvrez notre puissant moteur de recherche et consultez webstore.iec.ch/advsearchform La recherche avancée permet de trouver des publications IEC gratuitement tous les apercus des publications. Avec un en utilisant differents criteres (numéro de reference, texte, abonnement, vous aurez toujours acces a un contenu a jour comité d'études, ...). Elle donne aussi des informations sur adapté a vos besoins. les projets et les publications