Suppose your staff and contractors need to get up to speed with improving IEC 61511 functional safety competence for safety instrumented systems. If that’s the case, this is the right blog for you. Developed over the past seven years, we’ve delivered many years of experience to hundreds of professionals with our functional safety online learning. Watch the

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An eFunctionalSafety blog about HFT – Hardware Fault Tolerance for Safety & Availability of SIS according to IEC 61511.

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Are the terms “Mean Time Between Failures” (MTBF) and “Safety Integrity Level” (SIL) related to each other? Some would think not but read on if you’d like to discover if that’s true. MTBFEquipment suppliers have been providing MTBF data for their electrical and electronic equipment for decades. The base information usually comes from a field

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Ever wondered how to proof test a safety instrumented system? Proof test is a term that was first coined in the original IEC 61511 standard (functional safety – safety instrumented systems for the process industry sector). Unlike regular testing to see if a system performs as required by a specification, a SIF proof test should be

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With a SIL verification probability of failure calculation for a safety function, how do you decide whether PFD or PFH applies? This technical blog article details what you need to consider.

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