When it comes to implementing safety instrumented systems (SIS) to comply with functional safety standard IEC 61511, the safety PLC is a pivotal device to specify. So, what are the key questions that you need to ask if choosing a new system supplier? Read more here.What is ...

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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 ...

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You may not know or care much about Hardware Fault Tolerance (HFT) unless you're working in a hazardous industry with Safety Integrity Level *SIL requirements.  However, just like the multiple safety systems in your motor vehicle, systems used for protecting hazardous process plants are often ...

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A SIF gets specified as an automated independent protection layer (IPL), often as the result of a safety integrity level (SIL) target-setting exercise, also known variously as a SIL determination, SIL study or SIL assessment. ​Like any many other safety engineering activities, designing a safety ...

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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 ...

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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 ...

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