EN 61511-2:2017

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, and abbreviations
Annex A (informative) - Guidance for IEC 61511-1
Annex B (informative) - Example of SIS logic solver
        application program development using function
        block diagram
Annex C (informative) - Considerations when
        converting from NP technologies to PE
        technologies
Annex D (informative) - Example of how to get from a
        piping and instrumentation diagram (P&ID) to
        application program
Annex E (informative) - Methods and tools for
        application programming
Annex F (informative) - Example SIS project illustrating
        each phase of the safety life cycle with application
        program development using relay ladder language
Annex G (informative) - Guidance on developing
        application programming practices
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

IEC 61511-2:2016 is available as IEC 61511-2:2016 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.


IEC 61511-2:2016 provides guidance on the specification, design, installation, operation and maintenance of SIFs and related SIS as defined in IEC 61511-1:2016. This second edition cancels and replaces the first edition published in 2003. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: guidance examples based on all phases of the safety life cycle provided based on usage experience with IEC61511 1st edition; annexes replaced to address transition from software to application programming.