BS EN 61158-5-20:2014 BSl Standards Publication Industrial communication networks Fieldbus specifications Part 5-20: Application layer service definition Type 20 elements bsi. ..making excellence a habit.. BS EN 61158-5-20:2014 BRITISH STANDARD National foreword Licensed copy: University of Manchester Library, The University of Manchester Library, Version correct as of 02/05/2016 This British Standard is the UK implementation of EN 61158-5-20:2014. It is identical to IEC 61158-5-20:2014. It supersedes BS EN 61158-5-20:2012 which is withdrawn. The UK participation in its preparation was entrusted to Technical Com- mitteeAMT/7,Industrialcommunications:processmeasurementand control, including fieldbus. 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 are responsible for its correct application. @The British Standards Institution 2014. Published by BSI Standards Limited 2014 ISBN9780580794629 ICS 25.040.40; 35.100.70; 35.110 Compliancewitha BritishStandard cannot confer immunityfrom legal obligations. ThisBritishStandardwaspublished undertheauthorityofthe Standards Policy and Strategy Committee on31October 2014. Amendments issued since publication Date Text affected BSEN61158-5-20:2014 EUROPEANSTANDARD EN 61158-5-20 NORME EUROPEENNE EUROPAISCHE NORM October2014 ICS 25.040.40;35.100.70; 35.110 Supersedes EN61158-5-20:2012 English Version Industrial communication networks -Fieldbus specifications Part 5-20: Application layer service definition - Type 20 elements (IEC 61158-5-20:2014) Reseaux de communication industriels - Specifications des Industrielle Kommunikationsnetze - Feldbusse- bus de terrain - Partie 5-20: Definition des services de la Teil 5-20: Dienstfestlegungen des Application Layer couche application- Elements de type 20 (Anwendungsschicht) - Typ 20-Elemente (CEI 61158-5-20:2014) (IEC 61158-5-20:2014) This European Standard was approved by CENELEC on 2014-09-22. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Licensed copy: University of Manchester Library, CENELEC European Committee for Electrotechnical Standardization Comite Europeen de Normalisation Electrotechnique Europaisches Komitee fir Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels @ 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref.No.EN 61158-5-20:2014 E