You're all right that safety isn't just an option anymore, and it seems like manufacturers are well aware of this fact and supporting this trend. Rockwell also just came out with some tools to help engineers navigate safety as they are designing machines: http://www.designnews.com/document.asp?doc_id=262277
Sensor deployment in automated factories should be done slowly and conservatively, otherwise engineers may face the loss of hundreds of thousands or even millions of dollars, an Internet of Things expert will tell attendees at the upcoming Design & Manufacturing Show in Minneapolis.
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