Integrating Machinery Safety Functions Into Functional Safety for Process Industry

From a Process Industry point of view, the integration of Machinery Safety Functions into Functional Safety for Process Safety has always been a challenge. Generally, concepts of IEC 61511 „Functional safety – Safety instrumented systems for the process industry sector” are the basis for safety func...

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Bibliographic Details
Main Authors: Gregor Schmitt-Pauksztat, Dirk Hablawetz, Marco Knödler, Dominic de-Kerf, Christian Demski, Marc Risser, Ugo Dehner
Format: Article
Language:English
Published: AIDIC Servizi S.r.l. 2025-06-01
Series:Chemical Engineering Transactions
Online Access:https://www.cetjournal.it/index.php/cet/article/view/15118
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Summary:From a Process Industry point of view, the integration of Machinery Safety Functions into Functional Safety for Process Safety has always been a challenge. Generally, concepts of IEC 61511 „Functional safety – Safety instrumented systems for the process industry sector” are the basis for safety functions in Process Industry – however these concepts are somehow incompatible with Functional Safety implementations of machines according to IEC 62061 or ISO 13849. Examples are differences in prior use vs. “well-tried safety principles” and proof test approaches and of course the fundamental question of high and low demand of a safety function. Also, the target measure for the risk associated with the two principles are different. One is focusing mainly on very rare events with a high impact where the other is focusing mainly on frequent scenarios with a moderate to low impact.
ISSN:2283-9216