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

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Abstract

IEC TR 61511-4:2020(E), Functional safety - safety instrumented systems for the process industry sector, 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 them,
• 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.

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Additional information

Publication typeTechnical Report
Publication date2020-02-19
Edition1.0
Available language(s)English
TC/SCTC 65/SC 65A - System aspectsrss
ICS13.110 - Safety of machinery
25.040.01 - Industrial automation systems in general
Stability date  2022
Pages39
File size1294 KB

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