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Article | REF: SE4059 V1

New IEC 61511 requirements

Author: Olivier IDDIR

Publication date: May 10, 2019

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1. Functional safety

1.1 Defining functional safety

In its standards interpretation guide IEC 61508 and 61511   The ISA France section defines functional safety as: "The subset of overall safety that depends on the correct operation of a system or piece of equipment in response to its inputs".

L' IEC 61511 :2016 defines functional safety as: "A subset of overall safety relating to the process and the...

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