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Merging Bottom-up and Top-down Availability for realistic Analysis of Safety-related Loops

Verzahnung von Bottom-Up- und Top-Down-Verfügbarkeit zur Abbildung realen Verhaltens von PLT-Schutzeinrichtungen

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Kurzbeschreibung

This thesis shall examine whether realistic values for the availability of safety-related loops can be mapped for the environment of NAMUR. Therefore, the standard bottom-up methodology is applied on typical safety-related loops installed within NAMUR member companies. The resulting bottom-up benchmark has more theoretical character and thus requires a plausibility check towards reality. For this purpose reliability data of safety-related loops operating in NAMUR member companies are collected. In the subsequent step they serve as input for a top-down benchmark based on field data. Evaluating the bottom-up benchmark by its top-down pendant mirrors large discrepancies. In order to gain more realistic bottom-up results the bottom-up approach is mixed up with the top-down methodology in a kind of hybrid approach. The resulting review for the bottom-up benchmark shows good congruency with the real performance of operating safety-related loops in the NAMUR environment.

Details
Schlagworte

Titel: Merging Bottom-up and Top-down Availability for realistic Analysis of Safety-related Loops
Autoren/Herausgeber: Daniel Düpont
Aus der Reihe: Berichte aus der Automatisierungstechnik
Ausgabe: 1., Aufl.

ISBN/EAN: 9783832295929

Seitenzahl: 194
Format: 21 x 14,8 cm
Produktform: Buch
Gewicht: 291 g
Sprache: Englisch

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