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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 CLC IEC/TR 61511-4:2020

Publication date:   Dec 21, 2020

General information

60.60 Standard published   Sep 25, 2020

CENELEC

CLC/TC 65X Industrial-process measurement, control and automation

Technical Report

13.110   Safety of machinery | 25.040.01   Industrial automation systems in general

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Scope

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.

Life cycle

NOW

PUBLISHED
CLC IEC/TR 61511-4:2020
60.60 Standard published
Sep 25, 2020

Relations

Adopted from IEC/TR 61511-4:2020 IDENTICAL