Then there were the early days of the vision sensor wars. DVT vs Cognex. 
Prices dropping. Ease-of-use constantly improving. Technology advances. 
Smart, passionate people. Ah, those days are gone as DVT sold out to 
Cognex and the market opened to a myriad of competition.
Now it's safety. And principally Siemens and Rockwell, but ABB also gets
 a nod. 
A year ago, I wrote about ABB making an investment and 
Rockwell's annointing as top overall safety supplier leader by analyst 
firm ARC Advisory Group.
Now, Siemens has reason to boast. ARC ranks Siemens at the top globally in machine safeguarding solutions.
“We are dedicated to remaining a market leader in the development of 
innovative products and solutions in the machine safeguarding category,”
 says Raj Batra, president, Industry Automation Division for Siemens 
Industry, Inc.  “Our knowledge base of Totally Integrated Automation 
(TIA), coupled with a wide spectrum of products such as 
SIMATIC 
controllers, switches and relays, SINUMERIK motion controls and SIRIUS 
safety relays, provide Siemens with a solid foundation to continue 
servicing the needs of our current and future customers,” adds Batra.
The ARC study outlines the machine safeguarding sector, or solutions 
that evaluate equipment from a task-oriented perspective (operator 
interaction) and incorporates safety functions that effectively minimize
 the risk of operator injury. ARC has provided five year forecasts in 
order to show long-term trends in the machine safeguarding solutions 
marketplace, and regularly updates these forecasts based on changes in 
technology and global economic conditions.
I love competition.
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