I'm taking a stance, and publicly telling you my vision on the issue of separation and integration for safety and control.  When this happens, is still up to debate. I believe that one day it will only take one control system to automate your critical process.  That's right, there will be day where it is commonly ...

So you’re faced with the question of whether that trusty old transmitter you’ve been using as part of your safety shutdown system can meet the “prior use” requirements described in Section 11.5.3 of ANSI/ISA-84.00.01-2004 (IEC 61511-1 Mod).  Prior use, or Proven-in-use, is defined as a documented assessment showing ...

I received an e-mail inquiring about a product being “listed” or not, which made me stop and think about how far we have come in the past 10 years regarding safety systems and their “type” of certification.  The term “listed” means equipment or materials included in a list published by an organization ...

 Have you had a chance to catch Bill Goble’s Hydrocarbon Processing (October 2007 issue) editorial titled “Still not using a safety PLC?” Essentially Bill addresses the question of whether you can use conventional equipment (PLC or DCS) in compliance to ISA 84.00.01-2004 (IEC 61511 Mod.)? I think he did a nice job ...

You would think that the simple word “safety” would be so well understood by now that, …………well……..even a caveman could get it.  Unfortunately, I find we are still struggling to come to a consensus.  If you don’t believe me, attend a trade show, stop by a few booths, and simply ...