ISA 61511-2-2018 Functional Safety – Safety Instrumented Systems for the Process Industry Sector – Part 2: Guidelines for the application of IEC 61511-1:2016
This part of IEC 61511 provides guidance on the specification@ design@ installation@ operation and maintenance of SIFs and related SIS as defined in IEC 61511-1:2016. NOTE 1 Annex A (informative) has been organized so that each clause and subclause number therein addresses the corresponding clause and subclause number in IEC 61511-1:2016 except for being preceded by ??A??. NOTE 2 Annex A now contains material previously in the body of the first edition. These changes are required for compliance with IEC rules which prohibit a standard being wholly informative. NOTE 3 To achieve maximum use of this guideline; ?C review the section guidance as well as the specific clause guidance. (e.g.@ wh en looking for guidance on 5.2.6.1.3@ consider guidance in 5.2.6); ?C when specific clause guidance is not provided (e.g.; no furth er guidance provided)@ consider reviewing the section guidance as well@ as it can be applicable). NOTE 4 Examples given in the Annexes of this Standard are intended only as case specific examples of implementing IEC 61511 requirements in a specific instance@ and the user should satisfy themselves that the chosen methods and techniques are appropriate to their situation.
ISA 61511-2-2018 history
2018ISA 61511-2-2018 Functional Safety – Safety Instrumented Systems for the Process Industry Sector – Part 2: Guidelines for the application of IEC 61511-1:2016