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<\/span><\/p>\nFigure 1: SIS safety life-cycle stages and FSA stages<\/p>\n
According to the directive, stages 3 and 5 are compulsory, but often the other stages are included. A combined FSA Stage 1-3 is often carried out prior to commissioning. <\/p>\n
The Functional Safety Assessment<\/span> is carried out on the basis of a checklist.<\/p>\nBefore starting a Functional Safety Assessment<\/span>, the customer must provide documentation (or alternatives) for General Functional Safety Management – Hardware design documents and Software design documents.<\/p>\nThe checklist is a translation of standard IEC 61511. The checklist refers to the paragraphs in the standard. The checklist lists items per FSA Stage that are checked to see if the customer\/project complies with them. A total of 300 items are checked. Respectively per FSA Stage 1-5: 84, 81, 51, 58 and 26 items. <\/p>\n
The outcome of the various items may be:<\/p>\n
Compliant<\/p>\n
Not Compliant<\/p>\n
Partial Compliant<\/p>\n
If an item is not relevant to the project it is classified as Not Considered.<\/p>\n
Functional Safety Assessment<\/span><\/h3>\nAfter the Functional Safety Assessment<\/span>, a report is issued for the Not Compliance and Partial Compliance items with a recommendation with a Due Date. For the items classified as “Not Compliant”, it is recommended that they are resolved before the start-up or that a Risk Assessment is performed to determine whether a safe start-up can be performed. <\/p>\nFor an item classified as Compliant, a recommendation\/remark for future improvement may be proposed. The completed checklist is an appendix to the Functional Safety Assessment<\/span> (FSA) report. <\/p>\nThe FSA report contains the following information:<\/p>\n
\u2022 Summary<\/p>\n
\u2022 Introduction<\/p>\n
\u2022 Purpose of the document<\/p>\n
\u2022 Purpose of the assessment<\/p>\n
\u2022 Attendees and roles<\/p>\n
\u2022 Method of the Functional Safety Assessment (FSA)<\/p>\n
\u2022 References<\/p>\n
\u2022 Definitions<\/p>\n
\u2022 Abbreviations<\/p>\n
\u2022 Results of the assessment<\/p>\n
\u2022 Summary of results<\/p>\n
\u2022 Recommendations for “Not compliant requirements<\/p>\n
\u2022 Recommendations for Partial Compliance Requirements<\/p>\n
\u2022 Recommendation\/remark for future improvement<\/p>\n
\u2022 Conclusion<\/p>\n
\u2022 Attachments<\/p>\n
\u2022 FSA verification checklist<\/p>\n<\/div>\n<\/div><\/div><\/div>
![](\"https:\/\/www.pro6com.nl\/wp-content\/uploads\/2021\/07\/Functional-Safety-Assessment-1.png\" "\\"Functional")
<\/span><\/div>Want to learn more about Functional Safety Assessment and what pro6com can do for your plant in this regard?<\/h3><\/div>