• EN 50657:2017

    Current The latest, up-to-date edition.

    Railways Applications - Rolling stock applications - Software on Board Rolling Stock

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    Language(s): 

    Published date:  11-08-2017

    Publisher:  European Committee for Standards - Electrical

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    Table of Contents - (Show below) - (Hide below)

    European foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms, definitions and abbreviations
    4 Objectives, conformance and software
      integrity levels
    5 Software management and organization
    6 Software assurance
    7 Software development
    8 Systems configured by application data:
      development of application data
    9 Software deployment and maintenance
    Annex A (normative) - Criteria for the Selection
            of Techniques and Measures
    Annex B (normative) - Key software roles and
            responsibilities
    Annex C (informative) - Documents Control Summary
    Annex D (informative) - Bibliography of techniques
    Annex E (informative) - Changes in this European
            Standard compared to EN 50128:2011
    Annex ZZ (informative) - Relationship between
             this European Standard and the Essential
             Requirements of EU Directive 2008/57/EC
    Bibliography

    Abstract - (Show below) - (Hide below)

    1.1This European Standard specifies the process and technical requirements for the development of software for programmable electronic systems for use in rolling stock applications. Outside the scope of this standard is software that:-is part of signalling equipment (CENELEC sub-committee SC9XA applications) installed on board trains, or-does not contribute to, and is segregated from Rolling Stock operational functions.1.2This European Standard is applicable exclusively to software and the interaction between software and the system of which it is part.1.3Entry intentionally left empty1.4This European Standard applies to safety-related as well as non-safety-related software, including for example:-application programming,-operating systems,-support tools,-firmware.Application programming comprises high level programming, low level programming and special purpose programming (for example: programmable logic controller ladder logic).1.5This European Standard also addresses the use of pre-existing software and tools. Such software may be used, if the specific requirements in 7.3.4.7 and 6.5.4.16 on pre-existing software and for tools in 6.7 are fulfilled.1.6Software developed according to a valid version of EN 50128 is considered as compliant to this standard. Software previously developed in accordance with any version of EN 50128 is also considered as compliant and not subject to the requirements on pre-existing software. SIL1-SIL4 software developed under EN 50657 also complies with EN 50128:2011.1.7This European Standard considers that modern application design often makes use of software that is suitable as a basis for various applications. Such software is then configured by application data for producing the executable software for the application. This European Standard applies to such software. In addition, specific requirements for application data will be given.1.8Entry intentionally left empty1.9This European Standard is not intended to be retrospective. It therefore applies primarily to new developments and only applies in its entirety to existing systems if these are subjected to major modifications. For minor changes, only 9.2 applies. However, application of this European Standard during upgrades and maintenance of existing software is recommended.1.10The relevant sections of this software standard are also applicable to programmable components (e.g. FPGA and CPLD), in addition to the applicable hardware standard (e.g. EN 50129, EN 50155, EN 61508 2). However, requirements of this software standard that are already covered by the applicable hardware standard do not need to be re-addressed.When it is possible to exhaustively test the programmable logic for all possible inputs and internal logic states, this European Standard does not apply.

    General Product Information - (Show below) - (Hide below)

    Committee CLC/TC 9X
    Development Note Supersedes PREN 50657. (08/2017)
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS EN 50155:2017 Railway applications. Rolling stock. Electronic equipment
    I.S. EN 50155:2017-11 RAILWAY APPLICATIONS - ROLLING STOCK - ELECTRONIC EQUIPMENT
    EN 50155:2017 Railway applications - Rolling stock - Electronic equipment

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 61131-3:2013 Programmable controllers - Part 3: Programming languages
    EN 50128:2011/AC:2014 RAILWAY APPLICATIONS - COMMUNICATION, SIGNALLING AND PROCESSING SYSTEMS - SOFTWARE FOR RAILWAY CONTROL AND PROTECTION SYSTEMS
    PREN 50126-2 : DRAFT 2015 RAILWAY APPLICATIONS - THE SPECIFICATION AND DEMONSTRATION OF RELIABILITY, AVAILABILITY, MAINTAINABILITY AND SAFETY (RAMS) - PART 2: SYSTEMS APPROACH TO SAFETY
    EN 61131-3:2013 Programmable controllers - Part 3: Programming languages
    EN 61508-2:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 2: Requirements for electrical/electronic/programmable electronic safety-related systems
    ISO/IEC Guide 51:2014 Safety aspects Guidelines for their inclusion in standards
    CLC/TR 50126-3:2008 RAILWAY APPLICATIONS - THE SPECIFICATION AND DEMONSTRATION OF RELIABILITY, AVAILABILITY, MAINTAINABILITY AND SAFETY (RAMS) - PART 3: GUIDE TO THE APPLICATION OF EN 50126-1 FOR ROLLING STOCK RAM
    EN ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS - REQUIREMENTS (ISO 9001:2015)
    ISO/IEC TR 19791:2010 Information technology Security techniques Security assessment of operational systems
    EN 50129 : 2003 COR 2010 RAILWAY APPLICATIONS - COMMUNICATION, SIGNALLING AND PROCESSING SYSTEMS - SAFETY RELATED ELECTRONIC SYSTEMS FOR SIGNALLING
    PREN 50126-1 : DRAFT 2015 RAILWAY APPLICATIONS - THE SPECIFICATION AND DEMONSTRATION OF RELIABILITY, AVAILABILITY, MAINTAINABILITY AND SAFETY (RAMS) - PART 1: GENERIC RAMS PROCESS
    IEC 60050-821:1998 International Electrotechnical Vocabulary (IEV) - Part 821: Signalling and security apparatus for railways
    ISO 9001:2015 Quality management systems - Requirements
    ISO 9000:2015 Quality management systems Fundamentals and vocabulary
    ISO/IEC 90003:2014 Software engineering Guidelines for the application of ISO 9001:2008 to computer software
    ISO/IEC 27000:2016 Information technology Security techniques Information security management systems Overview and vocabulary
    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)
    EN ISO 9000 : 2015 QUALITY MANAGEMENT SYSTEMS - FUNDAMENTALS AND VOCABULARY (ISO 9000:2015)
    EN 50159:2010 RAILWAY APPLICATIONS - COMMUNICATION, SIGNALLING AND PROCESSING SYSTEMS - SAFETY-RELATED COMMUNICATION IN TRANSMISSION SYSTEMS
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