AS/NZS 4024.1503:2014
Safety of machinery - Part 1503: Safety-related parts of control systems - General principles for design
Specifies characteristics of the safety related parts of control systems (SRP/CS) that include the performance level required for carrying out safety functions. It applies to all types of technology and energy used (electrical, hydraulic, pneumatic, mechanical, etc.). The performance levels together with the appropriate category, or the category selection alone (specified in AS 4024.1501), may be used. Identical to and reproduced from ISO 13849-1:2006 including Cor.1:2009.
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AS/NZS 4024.1503:2014
Preface
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
4 Design considerations
4.1 Safety objectives in design
4.2 Strategy for risk reduction
4.3 Determination of required performance level (PLr)
4.4 Design of SRP/CS
4.5 Evaluation of the achieved performance level PL and relationship with SIL
4.6 Software safety requirements
4.7 Verification that achieved PL meets PLr
4.8 Ergonomic aspects of design
5 Safety functions
5.1 Specification of safety functions
5.2 Details of safety functions
6 Categories and their relation to MTTFd of each channel, DCavg and CCF
6.1 General
6.2 Specifications of categories
6.3 Combination of SRP/CS to achieve overall PL
7 Fault consideration, fault exclusion
7.1 General
7.2 Fault consideration
7.3 Fault exclusion
8 Validation
9 Maintenance
10 Technical documentation
11 Information for use
Annex A (informative) Determination of required performance level (PLr)
Annex B (informative) Block method and safety-related block diagram
Annex C (informative) Calculating or evaluating MTTFd values for single components
Annex D (informative) Simplified method for estimating MTTFd 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 partsof the control system
Annex I (informative) Examples
Annex J (informative) Software
Annex K (informative) Numerical representation of Figure 5
Bibliography
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AS/NZS 4024.1503:2014
Preface
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
4 Design considerations
4.1 Safety objectives in design
4.2 Strategy for risk reduction
4.3 Determination of required performance level (PLr)
4.4 Design of SRP/CS
4.5 Evaluation of the achieved performance level PL and relationship with SIL
4.6 Software safety requirements
4.7 Verification that achieved PL meets PLr
4.8 Ergonomic aspects of design
5 Safety functions
5.1 Specification of safety functions
5.2 Details of safety functions
6 Categories and their relation to MTTFd of each channel, DCavg and CCF
6.1 General
6.2 Specifications of categories
6.3 Combination of SRP/CS to achieve overall PL
7 Fault consideration, fault exclusion
7.1 General
7.2 Fault consideration
7.3 Fault exclusion
8 Validation
9 Maintenance
10 Technical documentation
11 Information for use
Annex A (informative) Determination of required performance level (PLr)
Annex B (informative) Block method and safety-related block diagram
Annex C (informative) Calculating or evaluating MTTFd values for single components
Annex D (informative) Simplified method for estimating MTTFd 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 partsof the control system
Annex I (informative) Examples
Annex J (informative) Software
Annex K (informative) Numerical representation of Figure 5
Bibliography
AS/NZS 4024.1503:2014
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.