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IEC 61508 - qaz.wiki

IEC 61508 is an international functional safety standard and it provides a framework for safety lifecycle activities. Titled “Functional Safety of Electrical/Electronic/Programmable Electronic Safety-related Systems (E/E/PE, or E/E/PES)”, 61508 is the umbrella functional safety standard — and the source for industry-specific standards. Here, we give an overview of the safety standard and Safety Integrity Level (SIL) basics — plus compliance tips for software development teams. IEC 62061:2021 specifies requirements and makes recommendations for the design, integration and validation of safety-related control systems (SCS) for machines.

Safety requirements are considered only for “high demand mode”, i.e. request of the safety function more than once per year. The machine should have been constructed in accordance with IEC 62061 or ISO 13849 but it may have to interface with and have an impact on a safety system designed to IEC 61511 & IEC 61508. The process in which the machine is installed may also have an impact on the safety requirements IEC 61508 for their specific functional safety requirements through additional derived standards.

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IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 62061 has been prepared by IEC technical committee 44: Safety of machinery – Electrotechnical aspects. The text of this standard is based on the following documents: FDIS Report on voting 44/460/FDIS 44/470/RVD en/iec 62061은 iec 61508에 따른 부문별 규격을 제시합니다. 이 지침은 기계류에 대한 안전 관련 컨트롤러 구현 에 대해 설명하며, 컨셉 규정 단계에서 해체에 이르는 전체 수명 주기를 검토합니다.

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IEC 61508 for their specific functional safety requirements through additional derived standards. The most common in factory automation include IEC 61131-6 for safe programmable logic controllers (PLCs), IEC 62061 for industrial machinery, IEC 61800-5-2 for variable speed drives and IEC 61511 for industrial process control.

IEC 62061 is the machinery-specific implementation of IEC 61508.
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Where did IEC 62061 come from? IEC 62061 is a standard for the machine sector and is based on IEC 61508. IEC 61508 is widely considered “the” international Pub. of IEC 62061 (SIL, application standard of IEC 61508).

All of these standards build directly on IEC 61508 and reference it accordingly. Overall Safety Lifecycle for IEC 61508. ESC is able to provide Functional Safety Management (FSM) assessments to international standards such as IEC 61508, IEC 61511 and IEC 62061 to demonstrate that the management of design activities and system implementation is appropriate and that there is adequate competence for carrying out each task.
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IEC 61508 first edition was published in 2000 but it wasn IEC 62061: Safety of machinery - Functional safety of safety-related control systems.

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IEC 62061 or ISO13849 are concerned only with the risk and functional safety 2017-03-07 IEC 62061 retains the features of IEC 61508, but simplifies safety requirements (of both hardware and software) adapting them to the specific needs of industrial machinery. Safety requirements are considered only for “high demand mode”, i.e. request of the safety function more than once per year.

In fact, their vocabulary, methodologies, and applications still overlap today. V. S. Safe.