Archive - May 2016

Performing a Random Hardware Failures Assessment (commonly known as SIL Verification) on a Safety Instrumented Function (SIF) is a key requirement of the Functional Safety Lifecycle detailed in IEC 61511. In other words, your SIF needs to meet the required SIL Target. In this blog we discuss what you can do if your SIF Design fails to meet the Target Failure Measure … More

Following my previous blog (Part One), here’s the final part of my summary of the key differences between edition one and the recently-released edition two of IEC 61511-1 (Functional safety - Safety instrumented systems for the process industry sector). As with any new revision, the first thing that pops to mind is What has changed and how does is affect me?… More

As a recent recruit to the IEC 61511 (Functional safety - Safety instrumented systems for the process industry sector) Maintenance committee (MT61511), I'm in a privileged position to be able to share with you a summary of the key changes to IEC 61511 between edition one and the recently-released edition two of IEC 61511-1. As with any new revision, the first thing t… More