CLC IEC/TR 61511-4:2020
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The latest, up-to-date edition.
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
25-09-2020
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.
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