SILability®, our SIL verification software

Introduction to SILability


SILability product box

What does SILability do?


SILability is a Safety Integrity Level (SIL) verification tool from xSeriCon. It performs calculations to assess whether the basic design of a Safety Instrumented Function (SIF) meets its integrity target in terms of random hardware failures.


The calculation produces:

  • PFDavg (average probability of failure on demand) or PFH (probability of failure per hour)
  • Maximum SIL achieved based on PFDavg/PFH
  • Maximum SIL achieved based on architectural constraints
  • Safe failure fraction
  • PFDavg/PFH contribution of each individual element in the SIF
  • Mean Time To Fail Spurious (MTTFS)

  • SILability is easy to set up and install, with both Windows and MacOS versions available.

    Click here to find out more about SILability’s many features and advantages.

    Why choose SILability?

    SILability product box

    Want to know more?

  • Contact us. We’ll guide you through any questions about SILability.
  • Download the User Guide and check the extensive FAQ section there.
  • Watch our introductory video on YouTube.
  • Request a free trial license.