EN 61511-1-2004 en Functional safety Safety instrumented systems for the process industry sector Part 1 Framework definitions system hardware and software requirements《功能安全 加工工业部门的.pdf
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1、BRITISH STANDARD BS EN 61511-1:2004 Incorporating Amendment No. 1 (renumbers the BS IEC 61511-1: 2003 as BS EN 61511-1:2004 Functional safety Safety instrumented systems for the process industry sector Part 1: Framework, definitions, system, hardware and software requirements The European Standard E
2、N 61511-1:2004 has the status of a British Standard ICS 25.040.01; 13.110 BS EN 61511-1:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 12 March 2003 BSI 11 April 2005 ISBN 0 580 41386 1 National foreword This British Standard is the off
3、icial English language version of EN 61511-1:2004. It is identical with IEC 61511-1:2003. The UK participation in its preparation was entrusted by Technical Committee GEL/65, Measurement and control, to Subcommittee GEL/65/1, System considerations, which has the responsibility to: A list of organiza
4、tions represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Corresp
5、ondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of
6、 itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments
7、and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 84, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued sinc
8、e publication Amd. No. Date Comments 15776 11 April 2005 Renumbers BS IEC 61511-1:2003 as BS EN 61511-1:2004EUROPEAN STANDARD EN 61511-1 NORME EUROPENNE EUROPISCHE NORM December 2004 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europ
9、isches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61511-1:2004 E ICS 13.110; 25.040.01 English version Functional safety Saf
10、ety instrumented systems for the process industry sector Part 1: Framework, definitions, system, hardware and software requirements (IEC 61511-1:2003 + corrigendum 2004) Scurit fonctionnelle Systmes instruments de scurit pour le secteur des industries de transformation Partie 1: Cadre, dfinitions, e
11、xigences pour le systme, le matriel et le logiciel (CEI 61511-1:2003 + corrigendum 2004) Funktionale Sicherheit - Sicherheitstechnische Systeme fr die Prozessindustrie Teil 1: Allgemeines, Begriffe, Anforderungen an Systeme, Software und Hardware (IEC 61511-1:2003 + Corrigendum 2004) This European S
12、tandard was approved by CENELEC on 2004-10-01. 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 conc
13、erning such national standards may be obtained on application to the Central Secretariat 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
14、 its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latv
15、ia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Foreword The text of the International Standard IEC 61511-1:2003, prepared by SC 65A, System aspects, of IEC TC 65, Industrial-process measurement and control,
16、was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 61511-1 on 2004-10-01 without any modification. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (d
17、op) 2005-10-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2007-10-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61511-1:2003 + corrigendum November 2004 was approved by CENELEC as a European
18、Standard without any modification. _ Page2 EN615111:2004CONTENTS INTRODUCTION6 1 Scope 8 2 Normative references13 3 Abbreviations and definitions 14 3.1 Abbreviations.14 3.2 Definitions .15 4 Conformance to this International Standard 29 5 Management of functional safety.29 5.1 Objective .29 5.2 Req
19、uirements 29 6 Safety life-cycle requirements.34 6.1 Objective .34 6.2 Requirements 34 7 Verification .36 7.1 Objective .36 8 Process hazard and risk analysis37 8.1 Objectives .37 8.2 Requirements 37 9 Allocation of safety functions to protection layers38 9.1 Objective .38 9.2 Requirements of the al
20、location process .38 9.3 Additional requirements for safety integrity level 4.39 9.4 Requirements on the basic process control system as a protection layer .40 9.5 Requirements for preventing common cause, common mode and dependent failures 41 10 SIS safety requirements specification .42 10.1 Object
21、ive .42 10.2 General requirements 42 10.3 SIS safety requirements.42 11 SIS design and engineering 43 11.1 Objective .43 11.2 General requirements 43 11.3 Requirements for system behaviour on detection of a fault 45 11.4 Requirements for hardware fault tolerance.46 11.5 Requirements for selection of
22、 components and subsystems 47 11.6 Field devices .50 11.7 Interfaces 51 11.8 Maintenance or testing design requirements53 11.9 SIF probability of failure.53 Page3 EN615111:200412 Requirements for application software, including selection criteria for utility software .54 12.1 Application software sa
23、fety life-cycle requirements 55 12.2 Application software safety requirements specification.61 12.3 Application software safety validation planning 63 12.4 Application software design and development63 12.5 Integration of the application software with the SIS subsystem 68 12.6 FPL and LVL software m
24、odification procedures .69 12.7 Application software verification.69 13 Factory acceptance testing (FAT) .70 13.1 Objectives .70 13.2 Recommendations.71 14 SIS installation and commissioning.72 14.1 Objectives .72 14.2 Requirements 72 15 SIS safety validation .73 15.1 Objective .73 15.2 Requirements
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