{"id":8471,"date":"2025-06-05T09:43:28","date_gmt":"2025-06-05T07:43:28","guid":{"rendered":"https:\/\/www.grupo-tice.com\/?p=8471"},"modified":"2025-12-10T10:14:07","modified_gmt":"2025-12-10T09:14:07","slug":"functional-safety-of-machinery-standard-en-iso-13849-1","status":"publish","type":"post","link":"https:\/\/www.grupo-tice.com\/en\/seguridad-funcional-maquinaria-norma-en-iso-13849-1\/","title":{"rendered":"EN ISO 13849-1: The Key to Functional Safety in Machinery"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"8471\" class=\"elementor elementor-8471\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-35de1f6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"35de1f6\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-bc2d988\" data-id=\"bc2d988\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6331f58 elementor-widget elementor-widget-text-editor\" data-id=\"6331f58\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Safety in industrial machinery is a priority in modern industry.<\/p><p><span style=\"color: #21bfd8;\"><strong> The EN ISO 13849-1 standard<\/strong><\/span> has established itself as an essential reference for ensuring that safety-related control systems meet the necessary requirements to protect operators and maintain process integrity.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8b0e7e2 elementor-widget elementor-widget-heading\" data-id=\"8b0e7e2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What is EN ISO 13849-1?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6b6550c elementor-widget elementor-widget-text-editor\" data-id=\"6b6550c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The <span style=\"color: #21bfd8;\"><strong>EN ISO 13849-1<\/strong><\/span> It is an international standard that sets out the requirements for the design and integration of safety-related control system parts (SRP\/CS) in machinery.<\/p><p><span style=\"color: #21bfd8;\"><strong>Its main objective is to provide a framework for evaluating and ensuring the reliability of safety functions implemented in machine control systems.<\/strong><\/span><\/p><p>This standard applies to all control technologies, whether <span style=\"color: #21bfd8;\"><strong>electrical<\/strong><\/span>, <span style=\"color: #21bfd8;\"><strong>electronics<\/strong><\/span>, <span style=\"color: #21bfd8;\"><strong>Hydraulics<\/strong><\/span>, <strong><span style=\"color: #21bfd8;\">tyres<\/span> <\/strong>o <strong><span style=\"color: #21bfd8;\">Mechanics<\/span><\/strong>, and focuses on ensuring safety functions are appropriately designed and validated to reduce risks associated with the use of machinery.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7bb4ebd elementor-widget elementor-widget-heading\" data-id=\"7bb4ebd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Niveles de Prestaci\u00f3n (PL) y su importancia<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ed21b5e elementor-widget elementor-widget-text-editor\" data-id=\"ed21b5e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\tOne of the key concepts introduced by EN ISO 13849-1 is the Performance Level (PL). <strong><span style=\"color: #21bfd8;\">The PL is a measure of the reliability of a safety function and is classified into five levels<\/span><\/strong>, from PL \u00aba\u00bb (lowest) to PL \u00abe\u00bb (highest). Each level corresponds to a specific range of dangerous failure probability per hour (PFHd), allowing for the quantification of the effectiveness of the implemented safety measures.\n\n<strong><span style=\"color: #21bfd8;\">Determine the appropriate PL<\/span><\/strong><span > for a security function<\/span><strong><span style=\"color: #21bfd8;\"> involves carrying out a risk assessment that considers factors such as the severity of potential injuries, the frequency of exposure to danger, and the possibility of avoiding or limiting harm<\/span><\/strong>. This assessment helps to establish the Required Performance Level (PLr) for each specific safety function.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-83c70c6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"83c70c6\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f773833\" data-id=\"f773833\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cb85a68 elementor-widget elementor-widget-image\" data-id=\"cb85a68\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.grupo-tice.com\/wp-content\/uploads\/2025\/06\/EN-ISO13849-PL.webp\" title=\"\" alt=\"Diagram of ISO 13849-1:2006 showing how to determine the required Performance Level (PLr) for safety functions in industrial machinery, based on severity.\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-cb55cd7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"cb55cd7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6538ade\" data-id=\"6538ade\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-34707de elementor-widget elementor-widget-heading\" data-id=\"34707de\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Key Components for Determining PL<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9091c83 elementor-widget elementor-widget-text-editor\" data-id=\"9091c83\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>To calculate and verify the PL of a safety function, EN ISO 13849-1 considers several essential parameters:<\/p><ul><li><span style=\"color: #21bfd8;\"><strong>MTTFd<\/strong> <\/span>(Mean Time to Dangerous Failure): Indicates the reliability of individual components and is classified as low, medium, or high.<\/li><li><span style=\"color: #21bfd8;\"><strong>DC<\/strong> <\/span>(Diagnostic Coverage): Reflects the system's ability to detect faults and is expressed as a percentage.<\/li><li><span style=\"color: #21bfd8;\"><strong>CCF<\/strong> <\/span>(Common Cause Failure): Assess the probability that simultaneous failures in different parts of the system have a common cause.<\/li><\/ul><p>These parameters, along with the control system architecture (categories B, 1, 2, 3 and 4), allow the achieved PL to be determined and compared with the PLr established in the risk assessment.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-58ba55a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"58ba55a\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-ac113d4\" data-id=\"ac113d4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t<div class=\"elementor-element elementor-element-05150b4 e-con-full e-flex e-con e-child\" data-id=\"05150b4\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ba7621a elementor-widget elementor-widget-heading\" data-id=\"ba7621a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Do you need technical advice?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-204a053 elementor-widget elementor-widget-text-editor\" data-id=\"204a053\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>At TICE we help you design and implement secure, optimised, and regulation-compliant control systems.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-14e4fdf elementor-mobile-align-left elementor-widget elementor-widget-button\" data-id=\"14e4fdf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/www.grupo-tice.com\/en\/#contactoinicio\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" id=\"Capa_1\" data-name=\"Capa 1\" viewbox=\"0 0 484 504.04\"><defs><style>      .cls-1 {        stroke-width: 0px;      }    <\/style><\/defs><path class=\"cls-1\" d=\"m438.92,305.33c-25.05,0-45.08-20.28-45.08-45.08s20.28-45.08,45.08-45.08,45.08,20.28,45.08,45.08-20.04,45.08-45.08,45.08Zm-78.24,62.02c0-25.05-20.28-45.08-45.08-45.08s-45.08,20.28-45.08,45.08,20.28,45.08,45.08,45.08,45.08-20.04,45.08-45.08Zm-17.17-214.69c0-15.51-12.4-27.91-27.91-27.91s-27.91,12.4-27.91,27.91,12.4,27.91,27.91,27.91,27.91-12.64,27.91-27.91Zm-106.15,107.34c0-25.05-20.28-45.08-45.08-45.08s-45.08,20.28-45.08,45.08,20.28,45.08,45.08,45.08,45.08-20.04,45.08-45.08Zm-17.41,216.12c0-15.51-12.4-27.91-27.91-27.91s-27.91,12.4-27.91,27.91,12.4,27.91,27.91,27.91,27.91-12.4,27.91-27.91Zm17.41-431.04c0-25.05-20.28-45.08-45.08-45.08s-45.08,20.28-45.08,45.08,20.28,45.08,45.08,45.08,45.08-20.04,45.08-45.08ZM55.82,260.01c0-15.51-12.4-27.91-27.91-27.91S0,244.5,0,260.01s12.4,27.91,27.91,27.91,27.91-12.4,27.91-27.91Z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contact us<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e652ad1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e652ad1\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-292cfd6\" data-id=\"292cfd6\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e108e48 elementor-widget elementor-widget-heading\" data-id=\"e108e48\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Significant Changes in the 2023 Version of the Standard<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3f74eaf elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3f74eaf\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3361b95\" data-id=\"3361b95\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-757a9b0 elementor-widget elementor-widget-text-editor\" data-id=\"757a9b0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The latest version of EN ISO 13849-1, published in 2023, introduces several significant updates:<\/p><ul><li><strong><span style=\"color: #21bfd8;\">Improved Structure<\/span> <\/strong>Present a clearer structure, facilitating the implementation of security functions such as subsystem combinations.<\/li><li><strong><span style=\"color: #21bfd8;\">Focus on Subsystems<\/span><\/strong><span style=\"color: #21bfd8;\">:<\/span> The term \u00absubsystem\u00bb is adopted, reflecting a more modular view of security system design.<\/li><li><strong><span style=\"color: #21bfd8;\">Safety Requirements Specification (SRS)<\/span><\/strong><span style=\"color: #21bfd8;\">:<\/span> More detailed guidelines for the SRS elaboration are provided.<\/li><li><span style=\"color: #21bfd8;\"><strong>Software Considerations<\/strong>:<\/span> Specific requirements relating to software design and validation are incorporated.<\/li><li><strong><span style=\"color: #21bfd8;\">Integrated Validation<\/span><\/strong><span style=\"color: #21bfd8;\">:<\/span> The requirements of ISO 13849-2 are integrated into this new version, facilitating a more coherent validation approach.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ceadc71 elementor-widget elementor-widget-heading\" data-id=\"ceadc71\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">EN ISO 13849-1 Implementation Process<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1824b6c elementor-widget elementor-widget-text-editor\" data-id=\"1824b6c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The effective implementation of the standard involves:<\/p><ol><li><span style=\"color: #21bfd8;\"><strong>Define the necessary security functions<\/strong><\/span><\/li><li><span style=\"color: #21bfd8;\"><strong>Determine the acceptable risk level (PLr) by risk assessment<\/strong><\/span><\/li><li><span style=\"color: #21bfd8;\"><strong>Design and implement the security function<\/strong><\/span><\/li><li><span style=\"color: #21bfd8;\"><strong>Calculate the achieved PL (MTTFd, DC, CCF)<\/strong><\/span><\/li><li><span style=\"color: #21bfd8;\"><strong>Verify and validate the implemented functions<\/strong><\/span><\/li><\/ol><p>This systematic approach ensures that security measures are effective and compliant with current regulations.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c947a75 elementor-widget elementor-widget-text-editor\" data-id=\"c947a75\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The <span style=\"color: #21bfd8;\"><strong>EN ISO 13849-1<\/strong><\/span> It is a fundamental tool for designing reliable and effective industrial safety systems. Ensuring regulatory compliance not only protects people but also improves efficiency, trust, and competitiveness for businesses.<\/p><p>At\u00a0 <span style=\"color: #21bfd8;\"><strong>Group<\/strong> <strong>TICE<\/strong><\/span>, We are specialists in the adaptation of machinery and industrial safety systems. Our technicians analyse, design and execute projects compliant with regulations, guaranteeing results and conformity.\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>La seguridad en la maquinaria industrial es una prioridad en la industria moderna. La norma EN ISO 13849-1 se ha consolidado como una referencia esencial para garantizar que los sistemas de control relacionados con la seguridad cumplan con los requisitos necesarios para proteger a los operarios y mantener la integridad de los procesos. \u00bfQu\u00e9 es [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":11590,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[62,38,30],"class_list":["post-8471","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seguridad-industrial","tag-iso-13849-1","tag-seguridad-en-maquinas","tag-seguridad-industrial"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>EN ISO 13849-1: La Clave para la Seguridad Funcional en M\u00e1quinas - Grupo Tice<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.grupo-tice.com\/en\/functional-safety-of-machinery-standard-en-iso-13849-1\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"EN ISO 13849-1: La Clave para la Seguridad Funcional en M\u00e1quinas\" \/>\n<meta property=\"og:description\" content=\"La seguridad en la maquinaria industrial es una prioridad en la industria moderna. 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