DIN EN ISO 25119-3 A1 2022-02 PDF

Full title and description

STB DIN EN ISO 25119-3 A1 2022-02 — Tractors and machinery for agriculture and forestry — Safety-related parts of control systems — Part 3: Series development, hardware and software — Amendment 1 (national adoption of ISO 25119-3:2018/Amd.1:2020). This item represents the German (DIN EN) publication of Amendment 1 to Part 3, published in February 2022.

Abstract

This amendment updates Part 3 of ISO 25119 (series development, hardware and software) and clarifies requirements for the design and development of safety‑related parts of control systems (SRP/CS) used on tractors and agricultural/forestry machinery. The underlying Part 3 standard sets out principles for SRP/CS design and development, specifies characteristics and categories required to carry out safety‑related functions and addresses E/E/PE systems used in mechatronic machine functions. The standard does not itself assign machine performance levels (AgPL); type‑C (machine‑specific) standards or the manufacturer specify those when required.

General information

• Status: National publication (DIN EN ISO adoption) published 01 February 2022; some catalogs list the national item as withdrawn — consult the national standards body for the definitive current status.
• Publication date: 01 February 2022 (DIN EN ISO 25119-3/A1 national publication).
• Publisher: DIN (as DIN EN ISO adoption of ISO 25119-3:2018/Amd 1:2020).
• ICS / categories: 35.240.99 (IT applications in other fields); 65.060.01 (Agricultural machines and equipment in general).
• Edition / version: Amendment 1 to EN ISO 25119-3:2018 (corresponds to ISO 25119-3:2018/Amd 1:2020).
• Number of pages: National PDF listing: 13 pages (DIN national document); ISO amendment core: 3 pages (ISO document).

Scope

This Amendment modifies EN ISO 25119-3:2018 to incorporate the technical changes contained in ISO 25119-3:2018/Amd 1:2020. It applies to the series development (including hardware and software design) of safety‑related parts of control systems (SRP/CS) on tractors and self‑propelled or towed agricultural and forestry machines. The document addresses hazards caused by malfunctioning behaviour of E/E/PE systems in mechatronic functions, but does not cover unrelated hazards such as fire or toxicity unless directly resulting from E/E/PE malfunction.

Key topics and requirements

• Clarifications and technical updates to series development lifecycle requirements for SRP/CS (requirements traceability, validation, verification and change control).
• Hardware development requirements for safety‑related electronic/electrical components used in agricultural machinery.
• Software development requirements for programmable electronic systems (design methods, coding practice, testing and validation of safety functions).
• Specification of characteristics and categories required of SRP/CS to perform safety‑related functions (but not prescriptive AgPL values).
• Interaction and integration considerations for multiple SRP/CS and their effect on system safety.

Typical use and users

Used by tractor and agricultural machinery manufacturers, system and safety engineers, product development teams, conformity assessment bodies, notified bodies and test laboratories to design, develop and assess safety‑related control systems. It is also used by standards committees and technical authors when producing machine‑specific (type‑C) standards that reference AgPLs and detailed performance requirements.

Related standards

ISO 25119 is a multi‑part series. Key related documents include ISO 25119-1 (general principles for design and development), ISO 25119-2 (concept phase), ISO 25119-3 (series development — this part) and ISO 25119-4 (production, operation, modification and supporting processes). The amendment here aligns EN/ISO Part 3 with ISO 25119-3:2018/Amd 1:2020.

Keywords

ISO 25119, DIN EN ISO, agriculture, forestry, SRP/CS, safety‑related parts of control systems, series development, hardware, software, amendment, AgPL, tractors, machine safety

FAQ

Q: What is this standard?

A: It is the Amendment 1 (A1) to Part 3 of ISO 25119 (series development, hardware and software) as published in the DIN EN ISO adoption in February 2022; the amendment corresponds to ISO 25119-3:2018/Amd 1:2020.

Q: What does it cover?

A: It updates and clarifies requirements for the design and development (series production) of safety‑related electrical/electronic/programmable electronic systems used on tractors and agricultural/forestry machinery — focusing on hardware and software lifecycle activities, verification/validation and SRP/CS characteristics. It does not itself assign machine performance levels (AgPL).

Q: Who typically uses it?

A: Machine manufacturers, system and safety engineers, conformity assessors, notified bodies, test labs and standards authors involved in agricultural and forestry machinery safety and control‑system development.

Q: Is it current or superseded?

A: The amendment was published at ISO level (ISO 25119-3:2018/Amd 1:2020) and adopted nationally by DIN (publication dated 01 Feb 2022). Some catalogue entries note the national item as withdrawn — always verify the current national status with the issuing standards body (DIN or your national standards organization).

Q: Is it part of a series?

A: Yes — ISO 25119 is a multi‑part series (Parts 1–4). This document is Amendment 1 to Part 3 (series development, hardware and software). Other parts cover general principles, concept phase and production/operation/modification processes.

Q: What are the key keywords?

A: SRP/CS, series development, hardware, software, tractors, agricultural machinery, ISO 25119, AgPL, safety‑related control systems.