SILcal

Safety Analysis Tool according to ISO 26262 and IEC 61508


SILcal is a tool for the execution of the risk evaluation analysis (FMEA) and reliability prediction (FMEDA), pertaining both, to the sphere of quality and of that of functional safety. The simple graphic interface increases the usability of the tool also for large dimensions and, thanks to the automated VDA-AIAG FMEA report generation, formal conformity will be guaranteed.

SILcal streamlines the FMEDA analyses, especially for products with functional safety requirements (ISO 26262, IEC 61508…), offering multiple failure model databases with failure mode, failure distribution and failure rate characterization of the electronic components to be analysed.  Components reliability profile, according to the most common industrial standards for reliability prediction  (e.g. SN 29500, IEC 62380…) reconsidered and integrated by the senior functional safety experts of exida, may immediately be added to the analysis, by means of a simple drag-and-drop action.

An additional support is provided by the tool in terms of automatic temperature scaling of the failure rate (at present available only for SN 29500 components), the possibility to create new components or modify the existing ones, to create proprietary libraries, integrate analyses elements for depending failures (DFA). In SILcal methodology, FMEDA is implemented as a natural continuation of FMEA analysis, thus allowing functional traceability from the highest-level requirement to the single electronic component and favoring the reusability of FMEA in an FMEDA context and the consistency between both analyses.

Key Features

  • FMEA

    Compliant with VDA 4.2 and SAE J1739

  • FTA

    Cut-set analysis and PMHF calculation
  • DFA

    Identification of common cause initiators from FTA and exida DFA guideline

  • FMEDA

    SPFM and LFM calculation
    Failure rates and failure mode distribution from industry standards (SN 29500, IEC TR 62380, etc.) and exida hardware component database

  • SW-FMEA

    Keyword based analysis of software failure modes.
    Support from exida SW-FMEA guideline. UML model import

  • Consistency

    Across all safety analyses due to common data structure, harmonized input parameter and aligned analysis methodologies

It includes the SILcal v.8 features guiding through the FMEDA process and calculating classified failure rates and the Safe Failure Fraction (SFF) of an electronic or mechanical device, according to the requirements of EN / IEC 61508-2 or the required safety metrics according to ISO 26262.

* SILcal V9 Demo is subjected to the following restrictions: - Max 50 items editable in project tree (no limit for read only access items) - No HW Temp Change - No users management - Max 50 rows reports.


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We provide consulting, assessment, cybersecurity, alarm management, product testing and certification under a number of Functional Safety, Security and SW Quality standards, such as IEC 61508, IEC 61511, ISO 26262, ISO 13849, IEC 62061, ISA Security Compliance Institute (ISCI), ASPICE


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