Article series: Functional safety, but how? (6)

Tuesday, 25. June 2019

With our publications on the subject of Product Life Cycle Management, we aim to provide information on standards and regulations and support SMEs in particular with questions relating to functional safety.

Part 6 of the article series is intended to help master the step from normative requirements to practical application. In the technical article, the typical requirements of factory automation are used: SIL3, requirement rate High Demand.

The system FMEA in the safety project

The development of functionally safe components presents the developer with additional challenges. In contrast to standard product developments, normative requirements arise that further increase the complexity of product development. These include, for example, the architecture requirements of IEC 61508-2.

Depending on the safety integrity level to be achieved, this standard makes concrete specifications regarding the hardware fault tolerance (HFT) to be achieved as well as the proportion of safe faults (SFF). In addition to fail-safe design principles, diagnostic measures are the key to a high SFF.

Learn more (part 6) »

Article published in SPS Magazine

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