M00029535
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SAFETY OF MACHINERY - SAFETY-RELATED PARTS OF CONTROL SYSTEMS - PART 1: GENERAL PRINCIPLES FOR DESIGN
International Organization for Standardization
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Availability date: 11/05/2021
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
4 Design considerations
5 Safety functions
6 Categories and their relation to MTTFD of each channel,
DC[avg] and CCF
7 Fault consideration, fault exclusion
8 Validation
9 Maintenance
10 Technical documentation
11 Information for use
Annex A (informative) - Determination of required
performance level (PL[r])
Annex B (informative) - Block method and safety-related
block diagram
Annex C (informative) - Calculating or evaluating MTTF[D]
values for single components
Annex D (informative) - Simplified method for estimating
MTTF[D] for each channel
Annex E (informative) - Estimates for diagnostic coverage
(DC) for functions and modules
Annex F (informative) - Estimates for common cause
failure (CCF)
Annex G (informative) - Systematic failure
Annex H (informative) - Example of combination of several
safety-related parts of the control system
Annex I (informative) - Examples
Annex J (informative) - Software
Annex K (informative) - Numerical representation of Figure 5
Bibliography
Gives safety requirements and guidance on the principles for the design and integration of safety-related parts of control systems (SRP/CS), including the design of software.
Published | |
Document Type | Standard |
Status | Current |
Publisher | International Organization for Standardization |
Pages | |
ISBN | |
Committee | TC 199 |
Supersedes |
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