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SIL calculation tool using simplified formulae from IEC-61508 and ISA-84
This APP allows the SIL (PFD and RRF) calculation of a SIF modelled as input+logic solver+output. It also calculates the MTTFs as per ISA-84 formulae. The inputs for the calculations are the failure rates in FIT (the app provides a converter from flr/hrs) and a simple wizard to calculate Lambdas from PFD, Proof test interval and MTTF. Addittionally it calculates, given the HFT and the SFF, the architectural constraints supporting both IEC-61508 and IEC-61511 tables. The APP can save and restore csv backups.What's New in the Latest Version 1.1.0
Last updated on May 4, 2016
* text size issue fixed
* ability to select A type for logic solvers
* possibility to save/load individual devices (in, logic solver or out)
* MooN approximate calculation for both PFD and MTTFs
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SILmple
1.1.0 by GigioSoft
May 4, 2016