1、IEC 61511-1:2016/COR1:2016 1 IEC 2016 INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION LECTROTECHNIQUE INTERNATIONALE _ IEC 61511-1 Edition 2.0 2016-02 FUNCTIONAL SAFETY SAFETY INSTRUMENTED SYSTEMS FOR THE PROCESS INDUSTRY SECTOR Part 1:Framework,definitions,system,hardware and application progr
2、amming requirements IEC 61511-1 dition 2.0 2016-02 SECURITE FONCTIONNELLE SYSTEMES INSTRUMENTES DE SECURITE POUR LE SECTEUR DES INDUSTRIES DE TRANSFORMATION Partie 1:Cadre,dfinitions,exigences pour le systme,le matriel et la programmation dapplication C O R R I G E N D U M 1 Corrections to the Frenc
3、h version appear after the English text.Les corrections la version franaise sont donnes aprs le texte anglais.3.2.39.1 demand mode SIF Replace 3.2.39.1 notes to entry with the following:Note 1 to entry:In the event of a dangerous failure of the SIF,a hazardous event can only occur if the failure is
4、undetected and a demand occurs before the next proof test;if the failure is detected by the diagnostic tests but the related process and its associated equipment has not been moved to a safe state before a demand occurs.Note 2 to entry:In high demand mode,it will normally be appropriate to use the c
5、ontinuous mode criteria.Note 3 to entry:The safety integrity levels for SIF operating in demand mode are defined in Tables 4 and 5.3.2.75.2 limited variability language LVL Replace definition 3.2.75.2 with the following:programming language for commercial and industrial programmable electronic contr
6、ollers with a range of capabilities limited to their application as defined by the associated safety manual.The notation of this language may be textual or graphical or have characteristics of both.Note 1 to entry:This type of language is designed to be easily understood by process sector users,and
7、provides the capability to combine predefined,application specific,library functions to implement the SRS.LVL provides a close functional correspondence with the functions required to achieve the application.IEC 61511-1:2016-02/COR1:2016-09(en-fr)2 IEC 61511-1:2016/COR1:2016 IEC 2016 Note 2 to entry
8、:IEC 61511 assumes that the constraints necessary to achieve the safety properties are achieved by the combination of the safety manual,the closeness of the language notations to the functions the application programmer needs to define the process control algorithms,and the compile time and run time
9、 checks which the logic solver provider embeds into the logic solver system program and the logic solver development environment.The constraints identified in the certification report and safety manual can ensure the relevant requirements of IEC 61508-3:2010 are satisfied.Note 3 to entry:LVL is the
10、most commonly used language when the IEC 61511 series refers to“application program”.9.2.5 Replace Subclause 9.2.5 with the following:9.2.5 In cases where the allocation process results in a risk reduction requirement of 10 000 or average frequency of dangerous failures 10 000 or average frequency o
11、f dangerous failures 10 000 or average frequency of dangerous failures 10 000 or average frequency of dangerous failures 10 000 or average frequency of dangerous failures 10 000 or average frequency of dangerous failures 10 000 ou une frquence moyenne de dfaillance dangereuse 10 000 ou de frquence m
12、oyenne de dfaillance dangereuse 10 000 ou une frquence moyenne de dfaillance dangereuse 10 000 ou la frquence moyenne de dfaillance dangereuse 10 000 ou que la frquence moyenne de dfaillance dangereuse 10 000 ou si la frquence moyenne de dfaillance dangereuse 10-8 par heure doit tre mise en uvre,que
13、lle soit alloue un ou plusieurs SIS ou un SIS associ une couche de protection BPCS,une autre valuation du risque doit tre ralise par une mthodologie quantitative visant confirmer que les exigences concernant lintgrit de scurit sont satisfaites.La mthodologie doit prendre en compte les dfaillances dp
14、endantes et les dfaillances de cause commune entre le SIS et:une autre ou dautres couches de protection dont la dfaillance entranerait une sollicitation de celle-ci;un autre ou dautres SIS rduisant la probabilit doccurrence de lvnement dangereux;un autre ou dautres moyens de rduction de risque rduis
15、ant la probabilit doccurrence de lvnement dangereux(p.ex.:alarmes de scurit).Tableau 6 Exigences de HFT minimale en fonction du SIL Remplacer le Tableau 6 par le suivant:Tableau 6 Exigences de HFT minimale en fonction du SIL SIL HFT minimale exige 1(nimporte quel mode)0 2(mode faible sollicitation)0
16、 2(mode solicitation lve ou continu)1 3(nimporte quel mode)1 4(nimporte quel mode)2 15.2.2 Remplacer la troisime puce du Paragraphe 15.2.2 par la suivante:conformment au point ci-dessus,les mesures(techniques)et les procdures qui seront utilises pour confirmer que chaque SIF est conforme aux exigences de scurit spcifies et au SIL spcifi;
