I was told by an end user engineer that he considers all field devices to be simple Type A devices. In IEC 61508, Type A is defined as a device with well-defined failure modes, well known failure rates, and behavior under fault conditions that can be completely determined. Type…
The world of automation has changed significantly over the past 30 years. I have fond memories of starting my career by calibrating, adjusting, and tuning pneumatic control loops while working my way through the electronic age right up to the present digital and cyber generation of automation. If you…
I was driving one of exida’s top risk experts from Europe to a business meeting. We parked and I locked the car door. He commented “I noticed you did not lock the car door when you parked at the exida office.” He was right. In an area I do…