October 2009

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HP Control: APC for min maintenance or max profit? - Part 1

First, thanks to Dr. Y. Zak Friedman1 for referencing my July 1997 HP editorial.2 I commend him for using HP publications from more than a decade ago in his editorial. While I appreciate Dr. Friedman'..

Latour, P. R., Clifftent Inc.

First, thanks to Dr. Y. Zak Friedman1 for referencing my July 1997 HP editorial.2 I commend him for using HP publications from more than a decade ago in his editorial. While I appreciate Dr. Friedman's effort to offer ideas to design advanced process control (APC) to perform better in the real HPI world, I continue to be dismayed about the inability of the process control, instrumentation and IT businesses to measure its financial profit contribution properly,3,4 which leads Friedman to recommend1 sacrificing 30% of potential APC benefits to reduce maintenance costs, by simplifying a MVC software matrix, without quantifying the performance loss or maintenance saving.1 I believe Dr. Fried

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