Voices: McMillan & Weiner

How to Get the Most Out of Your PID by Better Tuning

Tuning Tune-up. McMilland and Weiner Ask Sigifredo: What Are the Approximate Percentages of the Various Sources of Problems in the Loops You Have Worked With?

By Greg McMillan, Stan Weiner

*Stan:* We finish up our series with Sigifredo Nino, the founder and owner of Summa Control Solutions, with a discussion of how to get the most out of your PID by better tuning. A PID will only do as well as the PID tuning will allow. A loop with a poorly tuned PID will perform as badly in terms of minimizing errors from load disturbances as a loop with a larger dead time.

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15 case-in-points of common control myths

In a time-proven tradition of subjecting everything to scrutiny and ridicule, columnists McMillan and Weiner offer up the following 15 examples used to help illustrate and demystify control mythology.

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35 Years of Extraordinary PID Innovations

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Are you grounded in reality?

Control Talk columnists McMillan and Weiner get an insightful reply as to why a plant instrument engineer said the control schemes and instruments successfully used at other locations won't work in his plant.

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Best of the best, Part 3

In the third installment of this series, Control Talk columnists Greg McMillan and Stan Weiner, PE, continue their interviews with the big names in process control. This time they talk with ISA Fellow Vernon Trevathan.

03/08/2007

Best of the best, Part 4

Control Talk columnists McMillan and Weiner continue their interviews with the big names in process control. This time they talk with Bob Heider, adjunct professor at Washington University in St. Louis.

04/12/2007

Bonkers vortex meter spells double trouble

Control Talk columnists Greg McMillan and Stan Weiner offer up a bit of humor along with the answer to April's Puzzler on why a vortex meter measuring toothpaste went bonkers.

06/05/2005

Bringing Advanced Process Control Home

McMilland and Weiner Talk With Arnold Martin About Model-Predictive Control. Read the Column and Learn About Martin's Accomplishments and Perspective

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Calibration Trends

McMillan and Weiner Ask Glenn Gardner, Fluke Product Planner, to Help Them Complete Their Perspective on Calibration by Taking a Look at Future Trends

08/13/2012

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We Have Four Generations in the Work Place at the Same Time Each With Different Cultures, Skills, and Expectations

08/08/2013

Control Loop Improvement

McMillan and Weiner Talk With Jacques Smuts About Improving Control Loops

08/30/2012

Control Valve Innovations

McMillan and Weiner Asks Hans Baumann About His Most Notable Innovations in Control Valves.

05/14/2012

Daytime talk is a hoot and a holler

McMillan and Weiner imagine a transcript of a control engineer on a daytime talk show and offer up the Top 10 reasons why you won’t find a model-based control text book anywhere in today’s college classroom.

11/06/2005

Deal or No Deal

Greg McMillan and Stan Weiner bring their wits and more than 66 years of process control experience to bear on your questions, comments, and problems. Write to them at controltalk@putman.net.

02/05/2008

Deltas Rule

Deltas Rule in the Equation for the Digital Implementation of the PID Algorithm

09/15/2008

Diagnosing Final Control Elements

McMillan and Weiner Ask James Beall What Was the Biggest Step Forward that Helped Him Improve Valve Performance

12/07/2012

Distilled Analysis of Interaction

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The Memories of Loops Gone Bad and Processes Gone Wild

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Don't Over Look PID in APC

That Old Stalwart PID Can Do a Lot of Heavy Lifting in Your Process Control Efforts

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Downturn Turndown

Are People Going to Be Put to Work Improving the Rangeability of the Plant or Let Go to Save Short-Term Costs?

07/29/2009