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

.1 This 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. 1.2 This European Standard is applicable exclusively to software and the interaction between software and the system of which it is part. 1.3 Entry intentionally left empty 1.4 This 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).