Name: BS IEC 61508-7 : 2000 AMD 13785
Brand: BSI

BS IEC 61508-7 : 2000 AMD 13785

Superseded

FUNCTIONAL SAFETY OF ELECTRICAL/ELECTRONIC/PROGRAMMABLE ELECTRONIC SAFETY-RELATED SYSTEMS - PART 7: OVERVIEW OF TECHNIQUES AND MEASURES

Superseded date

15-03-2002

Published date

23-11-2012

Publisher

British Standards Institution

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Definitions and abbreviations
Annex A (informative) overview of techniques and measures for
                      E/E/PES: control of random hardware
                      failures (see IEC 61508-2)
      A.1 - Electrical
      A.2 - Electronic
      A.3 - Processing units
      A.4 - Invariable memory ranges
      A.5 - Variable memory ranges
      A.6 - I/O-units and interfaces (external communication)
      A.7 - Data paths (internal communication)
      A.8 - Power supply
      A.9 - Temporal and logical program sequence monitoring
      A.10 - Ventilation and heating
      A.11 - Communication and mass-storage
      A.12 - Sensors
      A.13 - Final elements (actuators)
      A.14 - Measures against the physical environment
Annex B (informative) Overview of techniques and measures for
                      E/E/PES: avoidance of systematic
                      failures (see IEC 61508-2 and IEC
                      61508-3)
      B.1 - General measures and techniques
      B.2 - E/E/PES safety requirements specification
      B.3 - E/E/PES design and development
      B.4 - E/E/PES operation and maintenance procedures
      B.5 - E/E/PES integration
      B.6 - E/E/PES safety validation
Annex C (informative) Overview of techniques and measures for
                      achieving software safety integrity
                      (see IEC 61508-3)
      C.1 - General
      C.2 - Requirements and detailed design
      C.3 - Architecture design
      C.4 - Development tools and programming languages
      C.5 - Verification and modification
      C.6 - Functional safety assessment
Annex D (informative) A probabilistic approach to determining
                      software safety integrity for pre-
                      developed software
      D.1 - General
      D.2 - Statistical testing formulae and examples of their
            use
      D.3 - References
Bibliography
Index
Table C.1 - Recommendations for specific programming languages
Table D.1 - Necessary history for confidence to safety
            integrity levels
Table D.2 - Probabilities of failure for low demand mode of
            operation
Table D.3 - Mean distances of two test points
Table D.4 - Probabilities of failure for high demand or
            continuous mode of operation
Table D.5 - Probability of testing all program properties

An overview of various measures and safety techniques relevant to IEC 61508-2 AND IEC 61508-3.

Committee	GEL/65
DevelopmentNote	Renumbered and superseded by BS EN 61508-7 Supersedes 98/261466 DC (04/2002)
DocumentType	Standard
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS EN 61508-7:2010
Supersedes	98/261466 DC : DRAFT APR 1998

Standards	Relationship
IEC 61508-7:2010	Identical

IEC 61508-5:2010	Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 5: Examples of methods for the determination of safety integrity levels (see Functional Safety and IEC 61508)
IEC 61508-4:2010	Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 4: Definitions and abbreviations (see Functional Safety and IEC 61508)
IEC 61508-3:2010	Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 3: Software requirements (see Functional Safety and IEC 61508)
ISO/IEC Guide 51:2014	Safety aspects Guidelines for their inclusion in standards
IEC GUIDE 104:2010	The preparation of safety publications and the use of basic safety publications and group safety publications
IEC 61508-6:2010	Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 6: Guidelines on the application of IEC 61508-2 and IEC 61508-3 (see Functional Safety and IEC 61508)
IEC 61508-1:2010	Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 1: General requirements (see Functional Safety and IEC 61508)
IEC 61508-2:2010	Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 2: Requirements for electrical/electronic/programmable electronic safety-related systems (see Functional Safety and IEC 61508)