App: Determining the required SIL, PL

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Determining the required SIL, PL

Required SIL pursuant to IEC 62061

  • Select the frequency and duration Fr, probability Pr, avoidance Av and the effects for the risk to be examined.
  • Read off the required SIL in the yellow field.

Required PL pursuant to ISO 13849-1

  • Select the severity of injury S, frequency and/or duration of hazard exposure F and the possibility of avoiding hazard or limiting harm P for the risk to be examined.
  • Read off the required PLr in the yellow field on the tree.

 

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