© exida.com GmbH TURCK 04-07-14 R001 V2R0.doc; February 8, 2013
Stephan Aschenbrenner Page 20 of 25
7 Status of the document
7.1 Liability
exida prepares reports based on methods advocated in International standards. Failure rates
are obtained from a collection of industrial databases. exida accepts no liability whatsoever for
the use of these numbers or for the correctness of the standards on which the general
calculation methods are based.
Due to future potential changes in the standards, best available information and best practices,
the current FMEDA results presented in this report may not be fully consistent with results that
would be presented for the identical product at some future time. As a leader in the functional
safety market place, exida is actively involved in evolving best practices prior to official release
of updated standards so that our reports effectively anticipate any known changes. In addition,
most changes are anticipated to be incremental in nature and results reported within the
previous three year period should be sufficient for current usage without significant question.
Most products also tend to undergo incremental changes over time. If an exida FMEDA has not
been updated within the last three years and the exact results are critical to the SIL verification
you may wish to contact the product vendor to verify the current validity of the results.
7.2 Releases
Version History: V2R0: IM33-11-Hi/24VDC / IM33-22-Hi/24VDC added; February 8, 2013
V1, R1.0: Review comments integrated; November 15, 2004
V0, R1.0: Initial version; October 27, 2004
Authors: Stephan Aschenbrenner
Review: V0, R1.0: Rachel Amkreutz (exida.com); October 29, 2004
Release status: Released to Werner Turck GmbH & Co. KG
7.3 Release Signatures
Dipl.-Ing. (Univ.) Stephan Aschenbrenner, Partner
Dipl.-Ing. (Univ.) Rainer Faller, Principal Partner
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