BS EN IEC 61158-4-25:2019 BSl Standards Publication Industrial communication networks - Fieldbus specifications Part 4-25: Data-link layer protocol specification - Type 25 elements bsi. BSENIEC61158-4-25:2019 BRITISH STANDARD Nationalforeword This British Standard is the UK implementation of EN IEC 61158-4- 25:2019.ItisidenticaltoIEC61158-4-25:2019 The UK participation in its preparation was entrusted to Technical CommitteeGEL/65,Measurementand control. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract.Users areresponsiblefor its correct application. @TheBritishStandardsInstitution2019 PublishedbyBSIStandardsLimited2019 ISBN9780580992100 ICS35.100.20;25.040.40;35.110 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the StandardsPolicyandStrategyCommitteeon31July2019. Amendments/corrigendaissuedsincepublication Date Textaffected BSENIEC61158-4-25:2019 ENIEC 61158-4-25 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHENORM June 2019 ICS25.040.40:35.100.20;35.110 English Version Industrial communication networks - Fieldbus specifications - Part 4-25: Data-link layer protocol specification - Type 25 elements (IEC61158-4-25:2019) Reseaux de communication industriels - Specifications des Industrielle Kommunikationsnetze - Feldbusse - Teil 4-25: bus de terrain - Partie 4-25: Specification du protocole de la Protokollspezifikation des Data Link Layer couche liaison de donnees - Elements de type 25 (Sicherungsschicht) - Typ 25-Elemente (IEC 61158-4-25:2019) (IEC 61158-4-25:2019) This European Standard was approved by CENELEC on 2019-05-15. 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 or to 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 EuropeanCommitteeforElectrotechnical 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 61158-4-25:2019 E