Video: Commissioning the Alternate Control Configuration

By Cecil Smith, president of Cecil L. Smith, Inc.

The loops proposed in the previous video complete the alternate control configuration. A previous video also examined tuning the feedback trim controller for the hot air temperature. This video will tune the other three loops. The first issue is the order for tuning the loops.


To access the entire video series from Cecil Smith, visit our video page.

Cecil Smith is president of Cecil L. Smith, Inc., Houston, a firm specializing in automation technology that he founded after leaving the faculty of Louisiana State University. Also cited as one of the 50 most influential people in the field, he teaches courses on control topics and has authored or co-authored 14 books, including “Digital Control of Industrial Processes and more than 100 articles. You can email him at He is also one of our experts in our Ask the Experts forum. You can pose your instrumentation and control questions to him here.