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immediate downloadReleased: 2023-11-27
BS EN 50716:2023 Railway Applications. Requirements for software development

BS EN 50716:2023

Railway Applications. Requirements for software development

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This standard cancels and replaces:

 

BS EN 50128:2011+A2:2020 Railway applications. Communication, signalling and processing systems. Software for railway control and protection systems


BS EN 50657:2017+A1:2023 Railways Applications. Rolling stock applications. Software on Board Rolling Stock

Standard number:BS EN 50716:2023
Pages:128
Released:2023-11-27
ISBN:978 0 539 21140 5
Status:Standard
DESCRIPTION

BS EN 50716:2023


This standard BS EN 50716:2023 Railway Applications. Requirements for software development is classified in these ICS categories:
  • 35.240.60 IT applications in transport and trade
  • 35.240.60 IT applications in transport and trade
1.1 This European Standard specifies the process and technical requirements for the development of software for programmable electronic systems for use in control, command for signaling applications and any on-board of rolling stock. This European Standard is not intended to be applied in the area of electric traction power supply (fixed installation) or for power supply and control of conventional applications, e.g. station power supply for offices, shops etc. These applications are covered typically by standards for energy distribution and/or non-railway sectors and/or local legal frameworks. For railway related fixed installations (electric traction power control and supply) the EN 50562 is applicable. 1.2 This European Standard is applicable exclusively to software and the interaction between software and the system of which it is part. 1.3 Intentionally left blank 1.4 This European Standard applies to all software used in railway systems, including - 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). 1.5 This 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. 1.6 Software developed according to any version of EN 50128 or EN 50657 will be considered as compliant and not subject to the requirements on pre-existing software. 1.7 This 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. 1.8 Entry intentionally left empty. 1.9 This 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. The assessor has to analyse the evidences provided in the software documentation to confirm whether the determination of the nature and scope of software changes is adequate. However, application of this European Standard during upgrades and maintenance of existing software is highly recommended. 1.10 For the development of User Programmable Integrated Circuits (e.g. FPGA & CPLD) guidance is provided in EN 50129:2018 Annex F for safety related functions and in EN 50155:2017 for non-safety related functions. Software running on soft-cores of User Programmable Integrated Circuits is within the scope of this European Standard. [...]