Unlike some safety PLCs on the market, ABB's AC500-S Safety PLC has a separate safety processor.
The Safety CPU can be configured to work even if the non-safety processor is in STOP or maintenance mode, or during an online change. (Source: ABB)
That's a good question Evanskollmorgen, especially since it's logical that customers will default to their PLC provider. Then it becomes a matter of trusting your PLC provider. But what are the alternatives?
Nice article, Al. Boy, it's surprising how much safety has changed in recent years. It wasn't very long ago that the idea of running safety and control on the same cable was considered a crackpot idea. Now you'd have to be a crackpot not to do it.
A bold, gold, open-air coupe may not be the ticket to automotive nirvana for every consumer, but Lexus’ LF-C2 concept car certainly turned heads at the recent Los Angeles Auto Show. What’s more, it may provide a glimpse of the luxury automaker’s future.
The complexity of diesel engines means optimizing their performance requires a large amount of experimentation. Computational fluid dynamics (CFD) is a very useful and intuitive tool in this, and cold flow analysis using CFD is an ideal approach to study the flow characteristics without going into the details of chemical reactions occurring during the combustion.
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