2.0. Failure Modes, Effects, and Diagnostic Analysis and System Integration Issues

2.1. Failure Modes, Effects, and Diagnostic Analysis

Failure Modes, Effects and Diagnostic Analysis (FMEDA) is an extension of FMEA (Chapter IV) to identify online diagnostics techniques and the failure modes relevant to SIS design. Exida developed FMEDA in the 1990s. Using the component database that has failure rates, failure modes, and useful life, the FMEDA product generates a product failure rate as well as product failure modes, diagnostic coverage, and even useful life. This is a useful design verification tool and means to provide more precise input to reliability and safety modeling. Also this is extensively used by the user and in projects for safe instruments ...

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