Réf. : RE: [sc] SIL on PCB?
Réf. : RE: [sc] SIL on PCB?
SIL applies to a safety function, not to a system (although it could be
discussed when there is only one function in a system).
As you state it, it is a requirement. It is not a property.
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"Mark Coates" <Mark.Coates@xxxxxx>
Envoyé par : safety-critical-request@xxxxxx
Veuillez répondre à safety-critical
Remis le : 30/07/2009 09:36
Pour : <safety-critical@xxxxxx>
cc : (ccc : Bertrand RICQUE/DRD/SAGEM)
Objet : RE: [sc] SIL on PCB?
SIL is a system property.
It is the level of assurance required that the item represents a
justifiable level of risk based on issues including the system context in
which it will be used, the manner it will be installed and maintained, the
procedures it will be used with, the operators' training and so on.
It is not a failure rate of a device.
From: Arne Hansen [mailto:arny.hansen@xxxxxx]
Sent: 29 July 2009 19:47
Subject: [sc] SIL on PCB?
Dear list members,
Do we only talk about SIL for systems, or is it possible to calculate and
certify SIL for stand-alone units like PCB (printed circuit boards) which
has a given safety function?
In other words, can all kind of electronic devices be SIL categorized?
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Received on Thu 30 Jul 2009 - 08:41:14 BST