Frequently Asked Questions

We have a SIF with SIL 2 on high demand. According to table 6 of 61511-1:2016, SIL 2 on continuous mode should have HFT 1, and we understand that this applies to high demand mode. However, according to our simulation the SIF complies with SIL 2 having onl
Last Updated about a month ago

In exSILentia version 3, architectural constraints are disabled for high or continuous demand mode SIFs. This is based on the discussions within the 61508 committee that the architectural constraints are only attended for Low demand applications. In your example the architectural constraints are not considered. However, the standard was never updated to reflect the committees opinion.

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