CLC IEC/TR 61511-4:2020

Functional safety - Safety instrumented systems for the process industry sector - Part 4: Explanation and rationale for changes in IEC 61511-1 from Edition 1 to Edition 2

This part of IEC 61511, which is a Technical Report, • specifies the rationale behind all clauses and the relationship between them, • raises awareness for the most common misconceptions and misinterpretations of the clauses and the changes related to hem, • explains the differences between Ed. 1 and Ed. 2 of IEC 61511-1 and the reasons behind the changes, • presents high level summaries of how to fulfil the requirements of the clauses, and • explains differences in terminology between IEC 61508-4:2010 and IEC 61511-1 Ed. 2.

Funktionale Sicherheit - PLT-Sicherheitseinrichtungen für die Prozessindustrie - Teil 4: Erläuterung und Gründe der Änderungen in der IEC 61511-1 von Edition 1 zu Edition 2

Sécurité fonctionnelle - Systèmes instrumentés de sécurité pour le secteur des industries de transformation - Partie 4 : Explication et justifications relatives aux modifications apportées entre l’Edition 1 et l’Edition 2 de l’IEC 61511-1

Funkcijska varnost - Sistemi z varnostnimi instrumenti za sektor procesne industrije - 4. del: Pojasnilo in razlogi za spremembe v IEC 61511-1 od 1. do 2. izdaje (IEC/TR 61511-4:2020)

General Information

• Status: Published
• Publication Date: 24-Sep-2020
• ICS: 13.110 - Safety of machinery
• ICS: 25.040.01 - Industrial automation systems in general
• Technical Committee: CLC/TC 65X - Industrial-process measurement, control and automation
• Drafting Committee: CLC/TC 65X - Industrial-process measurement, control and automation
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 25-Sep-2020
• Due Date: 05-Nov-2021
• Completion Date: 25-Sep-2020
• Ref Project: SIST-TP CLC IEC/TR 61511-4:2020 - Functional safety - Safety instrumented systems for the process industry sector - Part 4: Explanation and rationale for changes in IEC 61511-1 from Edition 1 to Edition 2 (IEC/TR 61511-4:2020)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST-TP CLC IEC/TR 61511-4:2020
01-december-2020
Funkcijska varnost - Sistemi z varnostnimi instrumenti za sektor procesne
industrije - 4. del: Pojasnilo in razlogi za spremembe v IEC 61511-1 od 1. do 2.
izdaje (IEC/TR 61511-4:2020)
Functional safety - Safety instrumented systems for the process industry sector - Part 4:
Explanation and rationale for changes in IEC 61511-1 from Edition 1 to Edition 2 (IEC/TR
61511-4:2020)
Funktionale Sicherheit - PLT-Sicherheitseinrichtungen für die Prozessindustrie - Teil 4:
Erläuterung und Gründe der Änderungen in der IEC 61511-1 von Edition 1 zu Edition 2
(IEC/TR 61511-4:2020)
Sécurité fonctionnelle - Systèmes instrumentés de sécurité pour le secteur des industries
de transformation - Partie 4 : Explication et justifications relatives aux modifications
apportées entre l'Edition 1 et l'Edition 2 de l'IEC 61511-1 (IEC/TR 61511-4:2020)
Ta slovenski standard je istoveten z: CLC IEC/TR 61511-4:2020
ICS:
25.040.01 Sistemi za avtomatizacijo v Industrial automation
industriji na splošno systems in general
SIST-TP CLC IEC/TR 61511-4:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TP CLC IEC/TR 61511-4:2020

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SIST-TP CLC IEC/TR 61511-4:2020


TECHNICAL REPORT CLC IEC/TR 61511-4

RAPPORT TECHNIQUE

TECHNISCHER BERICHT
September 2020
ICS 13.110; 25.040.01

English Version
Functional safety - Safety instrumented systems for the process
industry sector - Part 4: Explanation and rationale for changes in
IEC 61511-1 from Edition 1 to Edition 2
(IEC/TR 61511-4:2020)
Sécurité fonctionnelle - Systèmes instrumentés de sécurité Funktionale Sicherheit - PLT-Sicherheitseinrichtungen für
pour le secteur des industries de transformation - Partie 4 : die Prozessindustrie - Teil 4: Erläuterung und Gründe der
Explication et justifications relatives aux modifications Änderungen in der IEC 61511-1 von Edition 1 zu Edition 2
apportées entre l'Edition 1 et l'Edition 2 de l'IEC 61511-1 (IEC/TR 61511-4:2020)
(IEC/TR 61511-4:2020)


This Technical Report was approved by CENELEC on 2020-09-14.

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.



European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. CLC IEC/TR 61511-4:2020 E

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SIST-TP CLC IEC/TR 61511-4:2020
CLC IEC/TR 61511-4:2020 (E)
European foreword
The text of document (65A/911/DTR), future edition 1 of IEC/TR 61511-4, prepared by SC 65A
"System aspects" of IEC/TC 65 "Industrial-process measurement, control and automation" was
submitted to the IEC-CENELEC parallel vote and approved by CENELEC as CLC IEC/TR 61511-
4:2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC/TR 61511-4:2020 was approved by CENELEC as a
European Standard without any modification.
2

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SIST-TP CLC IEC/TR 61511-4:2020
CLC IEC/TR 61511-4:2020 (E)
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-192 - International electrotechnical vocabulary - Part 192: - -
Dependability
IEC 61508-4 2010 Functional safety of EN 61508-4 2010
electrical/electronic/programmable electronic
safety-related systems - Part 4: Definitions and
abbreviations (see <
...