The standard SN EN ISO 13849-1:2023 outlines essential principles for the design and integration of safety-related parts of control systems (SRP/CS) in machinery operations. It is applicable to systems that perform safety functions and provides a methodology that addresses various technologies including electrical, hydraulic, pneumatic, and mechanical systems. This standard specifically targets high-demand and continuous modes of operation, providing guidance while excluding low-demand scenarios and specific design requirements for individual components or products.

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What SN EN ISO 13849-1:2023 covers

SN EN ISO 13849-1:2023 focuses on the design and integration of safety-related parts of control systems within machinery. It provides a comprehensive methodology aimed at ensuring that these systems can perform necessary safety functions effectively. The standard applies broadly to various control systems using different types of energy, allowing for a wide range of applications across industries. However, it explicitly does not cover low-demand modes of operation and does not set forth specific safety functions or performance levels (PLr) that should be adhered to in various applications. Furthermore, it does not delve into the specific design requirements for components of SRP/CS, as those are addressed by other relevant ISO and IEC standards.

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Who needs to comply with SN EN ISO 13849-1:2023

The target audience for SN EN ISO 13849-1:2023 includes manufacturers, engineers, and safety professionals across multiple industries involved in machinery design and operation. This standard is particularly relevant to businesses operating in the Environment, Health & Safety sector, where compliance with safety regulations is critical. Companies of all sizes, from small enterprises to large multinational corporations, must understand and implement this standard to ensure their machinery meets safety requirements. Roles within the supply chain that deal with machinery design, integration, and maintenance will also find this standard applicable as it provides essential guidelines for safe operational practices.

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Key requirements

• Methodology for Design: Establishes a systematic approach for designing safety-related parts of control systems.
• High-demand Modes: Focuses on machinery that operates in high-demand and continuous modes, ensuring reliability in safety functions.
• Exclusion of Low-demand Operations: Clarifies that low-demand modes are not addressed, directing users to the IEC 61508 series for related guidance.
• Software Design: Outlines considerations for the design of software that performs safety functions.
• Technology Versatility: Applicable across various technologies, including electrical, hydraulic, pneumatic, and mechanical systems.
• Security Considerations: Acknowledges the impact of security aspects on safety functions, though it does not provide specific security measures.

Audits for compliance with these requirements typically involve a thorough review of design documentation, system functionality, and adherence to specified methodologies.

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How to implement SN EN ISO 13849-1:2023

Implementing SN EN ISO 13849-1:2023 begins with a gap analysis to assess current practices against the standard’s requirements. Following this, comprehensive documentation should be prepared to reflect the design and integration processes of safety-related control systems. Training sessions for relevant personnel are essential to ensure understanding and adherence to the standard. After these steps, an internal audit should be conducted to verify compliance and identify any areas for improvement. Finally, a certification audit can be performed to achieve formal recognition of compliance with the standard. This structured approach ensures that organizations effectively integrate safety principles into their machinery operations.

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Related standards

• IEC 61508: A foundational standard for the functional safety of electrical, electronic, and programmable electronic safety-related systems, which supplements the methodologies in SN EN ISO 13849-1:2023.
• ISO 22100-4: Provides guidance on the relationship between safety and security in machinery, addressing aspects relevant to the safety functions outlined in SN EN ISO 13849-1:2023.
• IEC/TR 63074: Discusses cybersecurity measures that could impact the safety of machinery operations, linking back to safety functions defined in SN EN ISO 13849-1:2023.
• ISO 12100: Focuses on general principles for the design of machinery safety, providing a broader context for compliance with SN EN ISO 13849-1:2023.

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Why SN EN ISO 13849-1:2023 matters

Adhering to SN EN ISO 13849-1:2023 not only fulfills legal compliance and enhances safety but also provides a competitive advantage by demonstrating a commitment to high operational standards. This can lead to increased customer trust and market access, as businesses that prioritize safety are often preferred by clients and partners. By integrating these principles into operations, organizations position themselves as leaders in safety and reliability within their industry. To delve deeper into compliance and implementation, consider exploring our training and purchasing options below.