Adding an Instrumented Protective Function (IPF) in Vertigo
An instrumented protective function (IPF) is a "control loop" that is utilized for a [...]
Converting FMEDA Data into a Vertigo Instrument Type
It is becoming increasingly common for vendors of industrial control instrumentation to seek SIL Certification [...]
Working with Black Box Models in Vertigo
This tutorial describes how to create a black box model in Vertigo. Black box models [...]
Can I Enter PFD Values Directly into Vertigo?
Yes, PFD values can be entered directly with the Black Box Model setting on an [...]
How to Reduce Fault Tolerance Requirements through Prior Use / Proven In Use in Vertigo
Up until the release of the IEC 61511 2nd Edition in 2016 the standard allowed [...]
Systematic Safety Integrity; what you need to know.
There's a lot of confusion about Systematic Safety Integrity in new IEC61511. We are starting to [...]
When all your eggs are in the BPCS and SIS protection layers
During Layer of Protection Analysis (LOPA) of high hazard scenarios, we often rely on a [...]
Derivation of PFD Equations for SIL Verification
Have you ever wondered where the equations that are used to [...]
Effigy & Vertigo in Portuguese & Chinese
We have developed the Effigy (Fire & Gas Detector Mapping) and Vertigo (SIS Lifecycle Management) [...]