SIS functional safety information

FSMP shall be established addressing all activities of the SIS lifecycle and detailing each phase due to be performed (e.g. project development or operation phase). This shall include a plan for when the activities shall be performed and responsibilities for the different activities. The document shall be made available by the overall SIS compliance responsible, i.e., integrator.

SIL Allocation Report.

With references in analysis of hazards, risks and risks reduction, the determined Safety Instrumented Functions (SIF), allocated Safety Integrity Levels and identified SIS respectively shall be documented in a "SIL allocation report" file including an index of all SIF/SIS.

LOPA Report.

Layer Of Protection Analysis (LOPA) is a simplified risk-based method that can be applied to allocate SIL requirement to the Safety Instrumented Functions (SIF). LOPA is the preferred method for the SIL allocation of preventive Safety Instrumented Functions. LOPA analysis shall be documented in a report.

Safety Requirements Specification (SRS).

Safety Instrumented System (SIS) is developed throughout different lifecycle phases providing an extract of relevant information. The SRS shall focus on main requirements and performance parameters of the SIS while references are made to other documents in order to accomplish a complete overview of all SIS properties.

SIL Compliance Report.

This report including Calculation and Data Dossier (CDD), shall describe methodologies, all data sources applied, calculations and reporting the status of each SIS conformance with main requirements.

Functional Safety Assessment reports.

FSA shall be planned, performed and reported at the relevant project stages as indicated by IEC 61511.

Miscellaneous SIS specific information, examples:

• Premises for SIS operating and maintenance activities.
• Identify particular prerequisites and assumptions made as part of SIS design which has to be complied with during the phase of operating the SIS. This shall also include description and procedures of required proof testing (to be prepared prior to and verified during commissioning, readily available to incorporate in plant maintenance program).
• Guideline for delivery of suppliers SIL documentation (e.g. IEC 61508 compliance certificate, Safety Manual). See also 5.186 SR-2740 Supplier SIL documentation.
• Reports from the various validation and verification activities including Factory Acceptance Test (FAT) and Site Acceptance test (SAT), a SIS validation record normally issued upon completion of the engineering (by system integrator).

Formats for calculation files: Reports: DOC+ PDF. Calculation files (LOPA, SRS, SIL compliance including CDD): Excel (+TBA if commercial software applied)

FSMP shall be established addressing all activities of the SIS lifecycle and detailing each phase due to be performed (e.g. project development or operation phase). This shall include a plan for when the activities shall be performed and responsibilities for the different activities. The document shall be made available by the overall SIS compliance responsible, i.e., integrator.

SIL Allocation Report.

With references in analysis of hazards, risks and risks reduction, the determined Safety Instrumented Functions (SIF), allocated Safety Integrity Levels and identified SIS respectively shall be documented in a "SIL allocation report" file including an index of all SIF/SIS.

LOPA Report.

Layer Of Protection Analysis (LOPA) is a simplified risk-based method that can be applied to allocate SIL requirement to the Safety Instrumented Functions (SIF). LOPA is the preferred method for the SIL allocation of preventive Safety Instrumented Functions. LOPA analysis shall be documented in a report.

Safety Requirements Specification (SRS).

Safety Instrumented System (SIS) is developed throughout different lifecycle phases providing an extract of relevant information. The SRS shall focus on main requirements and performance parameters of the SIS while references are made to other documents in order to accomplish a complete overview of all SIS properties.

SIL Compliance Report.

This report including Calculation and Data Dossier (CDD), shall describe methodologies, all data sources applied, calculations and reporting the status of each SIS conformance with main requirements.

Functional Safety Assessment reports.

FSA shall be planned, performed and reported at the relevant project stages as indicated by IEC 61511.

Miscellaneous SIS specific information, examples:

• Premises for SIS operating and maintenance activities.
• Identify particular prerequisites and assumptions made as part of SIS design which has to be complied with during the phase of operating the SIS. This shall also include description and procedures of required proof testing (to be prepared prior to and verified during commissioning, readily available to incorporate in plant maintenance program).
• Guideline for delivery of suppliers SIL documentation (e.g. IEC 61508 compliance certificate, Safety Manual). See also 5.186 SR-2740 Supplier SIL documentation.
• Reports from the various validation and verification activities including Factory Acceptance Test (FAT) and Site Acceptance test (SAT), a SIS validation record normally issued upon completion of the engineering (by system integrator).

Formats for calculation files: Reports: DOC+ PDF. Calculation files (LOPA, SRS, SIL compliance including CDD): Excel (+TBA if commercial software applied)