Pillar to Post: Peter Welander's Blog 
Recent Posts
- 3.6 billion gallons per day
- China's new slogan
- India's lessons of high energy costs
- Risks of wireless pioneering
- Has oil peaked?
- Fighting global warming like sheep
- Go to a virtual trade show & conference
- Happy World Environment Day!
- Airlines struggle with fuel cost too
- GM acknowledges painful reality
Recent Comments
- Patrick Rafter on Go to a virtual trade show & conference
- Bubba210 on Where your gas money goes
- Mark on GM acknowledges painful reality
- Qukler on I am not a socialist
- rich merritt on I am not a socialist
Most Commented On
- Chinese pharma plants go un-inspected? (2)
- I am not a socialist (2)
- GM acknowledges painful reality (1)
- Go to a virtual trade show & conference (1)
- Where your gas money goes (1)
Archives
- July 2008
- June 2008
- May 2008
- April 2008
- March 2008
- February 2008
- January 2008
- December 2007
- November 2007
- October 2007
- September 2007
- August 2007
- July 2007
- June 2007
- May 2007
- April 2007
- March 2007
Blog
Link This | Email this | Blog This | Comments (0)
Carl Henning does not miss much
This morning I opened my email box and found a message from Carl Henning, deputy director of the Profibus Trade Organization. Carl pays more attention to what's going on in his industry than anybody else I know and very little escapes his gaze. He took some exception to an item I wrote in our Process & Advanced Control Monthly that came out Wednesday. The article was about progress that the Fieldbus Foundation has made with fieldbus based safety systems in process plants.
I was thinking about Profisafe when I made the comment about fieldbus based safety in discrete manufacuting, but Carl says I missed something else important. Here's the relevant bit from his Profiblog:
Carl Henning does not miss much
June 8, 2007
This morning I opened my email box and found a message from Carl Henning, deputy director of the Profibus Trade Organization. Carl pays more attention to what's going on in his industry than anybody else I know and very little escapes his gaze. He took some exception to an item I wrote in our Process & Advanced Control Monthly that came out Wednesday. The article was about progress that the Fieldbus Foundation has made with fieldbus based safety systems in process plants.I was thinking about Profisafe when I made the comment about fieldbus based safety in discrete manufacuting, but Carl says I missed something else important. Here's the relevant bit from his Profiblog:
"I was amused by the lead sentence in an article at Control Engineering: Networking: Safety instrumented systems for processes via fieldbus? 'The idea of using fieldbus architecture for safety devices in discrete manufacturing is well established, but so far, process plants have not had this option available.' This is only true for process plants using FF; plants using PROFIBUS PA have had safety over a fieldbus available for many years! And that safety technology covers both the process functions of the facility and the discrete functions of the facility. Indeed, PROFIBUS and PROFINET provide the only safety fieldbus system that allows users to create safety logic that embraces discrete IO, process instruments, and drives. Users have a clear choice to make: a system in the experimental stage that only applies to process instruments OR a proven system that applies to process instruments, discrete IO, and drives."
I always feel better when I can be a source of amusement to somebody, especially Carl.
I always feel better when I can be a source of amusement to somebody, especially Carl.
Posted by Peter Welander on June 8, 2007 | Comments (0)
Advertisement
Advertisements
