BS EN IEC 61158-4-3:2019 BSl Standards Publication Industrial communication networks - Fieldbus specifications Part 4-3: Data-linklayer protocol specification - Type 3 elements bsi. BSENIEC61158-4-3:2019 BRITISH STANDARD Nationalforeword This British Standard is theUK implementation of ENIEC 61158-4- 3:2019.It isidentical toIEC 61158-4-3:2019.It supersedes BSEN 61158- 4-3:2014,whichwillbewithdrawnon23May2022. The UK participation in its preparation was entrusted to Technical CommitteeGEL/65/3,Industrialcommunications:processmeasurement and control, including fieldbus. request to its secretary. This publication does not purport to include all the necessary provisions ofa contract.Users are responsible for its correctapplication. @TheBritishStandards Institution2019 Published byBSI Standards Limited 2019 ISBN9780539048551 ICS35.110;35.100.20;25.040.40 Compliancewith aBritish Standard cannot confer immunityfrom legal obligations. This British Standard was published under the authority of the Standards Policyand Strategy Committee on31 July2019. Amendments/corrigenda issuedsincepublication Date Text affected BSENIEC61158-4-3:2019 EUROPEANSTANDARD EN IEC 61158-4-3 NORME EUROPEENNE EUROPAISCHENORM June 2019 ICS 25.040.40;35.100.20; 35.110 Supersedes EN 61158-4-3:2014 English Version Industrial communication networks - Fieldbus specifications - Part 4-3: Data-link layer protocol specification - Type 3 elements (IEC 61158-4-3:2019) Réseaux de communication industriels - Specifications des Industrielle Kommunikationsnetze - Feldbusse - Teil 4-3: Protokollspezifikation des Data Link Layer bus de terrain - Partie 4-3 : Spécification du protocole de la couche liaison de donnees - Elements de Type 3 (Sicherungsschicht) - Typ 3-Elemente (IEC 61158-4-3:2019) (IEC 61158-4-3:2019) This European Standard was approved by CENELEC on 2019-05-23. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre orto any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comite Europeen de Normalisation Electrotechnique Europaisches Komitee fur Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels @ 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN IEC 61158-4-3:2019 E