UNE-EN ISO 13849-1-2016 PDF

Full title and description

STB UNE-EN ISO 13849-1:2016 — "Safety of machinery — Safety-related parts of control systems — Part 1: General principles for design" (Spanish adoption of EN ISO 13849-1:2015). This publication is the AENOR/UNE Spanish version of the international ISO standard that provides principles, requirements and guidance for the design of safety‑related parts of control systems (SRP/CS) used on machinery.

Abstract

This standard establishes general principles for the design, integration and specification of safety‑related parts of control systems for machinery, covering hardware and software aspects and specifying means to determine required performance levels (PLs), categories and considerations for faults, diagnostics and validation. It is aligned with the international ISO 13849-1 framework (original ISO edition 2015) and was published in Spanish as UNE-EN ISO 13849-1:2016.

General information

• Status: Superseded (replaced by the later UNE-EN ISO 13849-1 version published in 2024 / corresponding to ISO 13849-1:2023).
• Publication date: 21 September 2016 (Spanish adoption of EN ISO 13849-1:2015).
• Publisher: Asociación Española de Normalización y Certificación — AENOR (published as UNE standard).
• ICS / categories: 13.110 (Safety of machinery).
• Edition / version: UNE-EN ISO 13849-1:2016 (text identical to EN ISO 13849-1:2015 / based on ISO 13849-1:2015).
• Number of pages: Typically listed as approximately 98 pages in many catalogs for the Spanish edition; some distributors list 104 pages — page count can vary by format and cover matter.

Scope

Specifies safety requirements and guidance for the design and integration of safety‑related parts of control systems (SRP/CS) for machinery, including requirements for performance level determination, categories, reliability parameters (MTTFd, DC, CCF), diagnostic coverage and validation of safety functions. It applies across technologies (electrical, hydraulic, pneumatic, mechanical) and to systems with high or continuous demand rates.

Key topics and requirements

• Definition of safety functions and determination of required Performance Level (PLr).
• Description and use of categories (B, 1, 2, 3, 4) and their relationship with architecture and diagnostics.
• Quantitative reliability measures: MTTFd (mean time to dangerous failure), DCavg (average diagnostic coverage), and consideration of Common Cause Failures (CCF).
• Requirements for design of SRP/CS including hardware and software aspects and selection of components suitable for the intended use.
• Fault consideration and possible fault exclusion conditions with justification.
• Validation procedures for safety functions (planning, analysis, and testing) — validation material originally in ISO 13849‑2 is integrated or cross‑referenced in later editions.

Typical use and users

Used by machine designers, safety engineers, control system architects, component manufacturers, conformity assessment bodies and competent persons responsible for machine risk assessment and CE marking under the Machinery Directive. It is applied during design, integration, verification and validation phases to demonstrate that control‑related safety measures achieve required PLs and meet legal/safety obligations.

Related standards

Closely related to ISO 13849-2 (validation) — much of the validation material was merged into the 2023 edition of ISO 13849-1 — and to sector and component standards such as IEC 62061 (safety of electrical/electronic/programmable electronic control systems), IEC 61508 (functional safety), ISO 14119 (interlocking devices), ISO 13855 (positioning of protective equipment), and various EN/IEC product standards that specify safety functions for particular devices.

Keywords

Safety of machinery; safety‑related parts of control systems (SRP/CS); performance level (PL); categories; MTTFd; diagnostic coverage (DC); CCF; validation; AENOR; UNE; ISO 13849.

FAQ

Q: What is this standard?

A: UNE-EN ISO 13849-1:2016 is the Spanish (UNE/AENOR) adoption of EN ISO 13849-1:2015 / ISO 13849-1:2015, titled "Safety of machinery — Safety-related parts of control systems — Part 1: General principles for design." It provides principles and requirements for designing safety‑related control parts on machinery.

Q: What does it cover?

A: It covers the definition and design of safety functions, determination of required performance levels (PLr), the use of categories and architectures, reliability metrics (MTTFd, DC, CCF), fault treatment and validation procedures needed to ensure safety‑related control systems meet required safety performance.

Q: Who typically uses it?

A: Machine builders, safety and control engineers, system integrators, component manufacturers, notified/conformity bodies and anyone responsible for machine risk assessment, safety control design, verification and CE compliance.

Q: Is it current or superseded?

A: The UNE-EN ISO 13849-1:2016 edition has been superseded by a later UNE-EN ISO 13849-1 edition (publication adopting ISO 13849-1:2023) published in 2024; the underlying international standard ISO 13849-1 was updated to a 2023 edition. For new designs and compliance checks, the 2023/2024 editions are the current references. Supersession/successor dates are recorded in national catalogs (supersession noted in March 2024).

Q: Is it part of a series?

A: Yes — ISO 13849 is a multi‑part framework. Historically it comprised Part 1 (general principles for design) and Part 2 (validation). The 2023 revision of Part 1 consolidated much validation guidance; Part 2 previously provided detailed validation procedures. The standard is managed under ISO/TC 199 (Safety of machinery).

Q: What are the key keywords?

A: Safety-related parts of control systems (SRP/CS), performance level (PL), category, MTTFd, diagnostic coverage (DC), common cause failure (CCF), validation, machinery safety.