The combined consideration of hardware, fault tolerance, category, DC, PFHD and SFF provides the following SIL assignment. All conditions must always be met. If one single condition is not met, the SIL has not been achieved.
Compare the required SIL from the risk assessment with the achieved SIL. If the achieved SIL is greater than or equal to the required SIL, the requirement for the implementation is considered to have been met.
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