ISA Interchange

Welcome to the official blog of the International Society of Automation (ISA).

This blog covers numerous topics on industrial automation such as operations & management, continuous & batch processing, connectivity, manufacturing & machine control, and Industry 4.0.

The material and information contained on this website is for general information purposes only. ISA blog posts may be authored by ISA staff and guest authors from the automation community. Views and opinions expressed by a guest author are solely their own, and do not necessarily represent those of ISA. Posts made by guest authors have been subject to peer review.

Greg McMillan

Greg McMillan

Greg McMillan has more than 50 years of experience in industrial process automation, with an emphasis on the synergy of dynamic modeling and process control. He retired as a Senior Fellow from Solutia and a senior principal software engineer from Emerson Process Systems and Solutions. He was also an adjunct professor in the Washington University Saint Louis Chemical Engineering department from 2001 to 2004. Greg is the author of numerous ISA books and columns on process control, and he has been the monthly Control Talk columnist for Control magazine since 2002. He is the leader of the monthly ISA “Ask the Automation Pros” Q&A posts that began as a series of Mentor Program Q&A posts in 2014. He started and guided the ISA Standards and Practices committee on ISA-TR5.9-2023, PID Algorithms and Performance Technical Report, and he wrote “Annex A - Valve Response and Control Loop Performance, Sources, Consequences, Fixes, and Specifications” in ISA-TR75.25.02-2000 (R2023), Control Valve Response Measurement from Step Inputs. Greg’s achievements include the ISA Kermit Fischer Environmental Award for pH control in 1991, appointment to ISA Fellow in 1991, the Control magazine Engineer of the Year Award for the Process Industry in 1994, induction into the Control magazine Process Automation Hall of Fame in 2001, selection as one of InTech magazine’s 50 Most Influential Innovators in 2003, several ISA Raymond D. Molloy awards for bestselling books of the year, the ISA Life Achievement Award in 2010, the ISA Mentoring Excellence award in 2020, and the ISA Standards Achievement Award in 2023. He has a BS in engineering physics from Kansas University and an MS in control theory from Missouri University of Science and Technology, both with emphasis on industrial processes.

Books:

Advances in Reactor Measurement and Control
Good Tuning: A Pocket Guide, Fourth Edition
New Directions in Bioprocess Modeling and Control: Maximizing Process Analytical Technology Benefits, Second Edition
Essentials of Modern Measurements and Final Elements in the Process Industry: A Guide to Design, Configuration, Installation, and Maintenance
101 Tips for a Successful Automation Career
Advanced pH Measurement and Control: Digital Twin Synergy and Advances in Technology, Fourth Edition
The Funnier Side of Retirement for Engineers and People of the Technical Persuasion
The Life and Times of an Automation Professional - An Illustrated Guide
Advanced Temperature Measurement and Control, Second Edition
Models Unleashed: Virtual Plant and Model Predictive Control Applications

Recent Posts:

Top 10 Mistakes in pH System Design and How to Avoid Them

We learn best by reviewing examples. Seeing other people’s mistakes and understanding what they did ...
Greg McMillan May 17, 2024 3:49:39 PM

Ask the Automation Pros: How to Best Migrate from Obsolete to Modern Instrumentation and Control Systems?

The following discussion is part of an occasional series, "Ask the Automation Pros," authored by Gre...
Greg McMillan Apr 30, 2024 7:00:00 AM

Ask the Automation Pros: How Can We Improve or Eliminate Split Range Control?

The following discussion is part of an occasional series, "Ask the Automation Pros," authored by Gre...
Greg McMillan Mar 5, 2024 8:00:00 AM

The 5 W's of Modernizing Control Systems Future

The following discussion is part of an occasional series, "Ask the Automation Pros," authored by Gre...
Greg McMillan Feb 2, 2024 8:00:00 AM

When are we Modernizing Control Systems?

The following discussion is part of an occasional series, "Ask the Automation Pros," authored by Gre...
Greg McMillan Jan 22, 2024 8:00:00 AM

Can a Primary Loop Manipulate a Secondary Loop Valve?

The following discussion is part of an occasional series, "Ask the Automation Pros," authored by Gre...
Greg McMillan Dec 1, 2023 8:00:00 AM

How Can we Improve On-off Temperature Control?

The following discussion is part of an occasional series, "Ask the Automation Pros," authored by Gre...
Greg McMillan Nov 3, 2023 8:00:00 AM

How Can we Improve Logic Control Contact Status Awareness and Operator Response?

The following discussion is part of an occasional series, "Ask the Automation Pros," authored by Gre...
Greg McMillan Oct 4, 2023 12:29:17 PM

Ask the Automation Pros: How Do You Improve Use of Analyzers for Continuous Control?

The following discussion is part of an occasional series, "Ask the Automation Pros," authored by Gre...
Greg McMillan Aug 1, 2023 8:00:00 AM

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