A great question came in the Process Automation Usability Project forum asking why there is not more control in the field being done. If you're unfamiliar with the term, it's where a Foundation fieldbus (FF) transmitter, digital valve controller, or other instrument...
control strategy
What Have I Learned? – Read Greg McMillan’s Blog
If you're a process automation professional and you haven't been following Greg McMillan on the ModelingAndControl.com blog and his "What Have I Learned?" series of posts, you're not in the flow of great knowledge sharing. Here's the current list of posts: What Have I...
A View of MPC Control from Operations to Design
I caught up with Emerson's Lou Heavner the other day and we traded a few teenager "war stories." Lou is an advanced automation consultant and I've shared some of his expertise in posts over the years. He mentioned he had done a very basic presentation to show the...
Thoughts on Control System Migration Projects
Control magazine had a great article a few months back entitled, Control System Migration. It did a great job covering the selection and planning process when modernizing your automation system. Recently, I featured Emerson's John Dolenc and his perspectives on...
Don’t Corner Yourself with an Automation Obsolescence Justification
Recently, when Emerson's John Dolenc was in Austin, we had one of those hallway conversations about automation modernization projects. He shared a paper he'd written a few years back that contained many of his thoughts on modernization project justification. The paper...
A Few Tips to Optimize Your Process
I've featured quite a number of experts around Emerson over these past three years. Some categories, like Process Optimization, have more than 50 posts. There is quite a bit of wisdom mixed in all those posts. A few months ago, I was asked by Plant Engineering...
Dealing with Fixed Deadtime with the Smith Predictor Algorithm
I recently exchanged some emails with Emerson's Sergei Kuznetsov, part of TAG projects organization, and based in Minneapolis, Minnesota. Sergei is principal control systems engineer, certified professional engineer, and has an MSEE degree. He shared with me an...
Modeling and Control Analysis Brings Big Capital Savings
Wow, what a fast and furious week... I'll close the week by highlighting a recent article by ModelingAndControl.com's Greg McMillan. He coauthors the article, Virtual Plant Provides Real Insights, which appears in the January 2009 edition of Chemical Processing...
For These Economic Times, Squeeze More Out Of Your Process
One only has to come across reports like the Institute for Supply Management's Manufacturing ISM Report On Business to see the slowing global economic conditions. The report notes: Manufacturing activity continued to decline at a rapid rate during the month of...
Advanced PID Functions for Improved Control Performance
I saw Emerson's James Beall the other week and asked him for a copy of his Emerson Exchange presentation, Interesting and Useful Features of the DeltaV PID Controller. Every year, James presents to standing-room-only crowds and his presentation (given twice) this year...
Improving Gas Plant Throughput and Robustness with MPC
A great presentation at the recent Emerson Exchange was one that discussed the results of applying model predictive control (MPC) in a challenging gas plant process. Model predictive control has been available for decades and used in very large applications such as...
Taming Extruder Temperature Control
I caught up with Emerson's Mark Coughran, a senior process variability consultant whom you may recall from earlier process tuning and optimization posts. Mark shared a story of a plastics manufacturer that was challenged to bring a new product to market with a new...
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