PID (proportional-integral-derivative) control, a foundational control technology for process manufacturers, has been with us since the early 1900s. In a Control Engineering article, Evolving PID Tuning Rules - A Brief History, Starting With The Earliest PID...
control strategy
Cloud IO-So What will Change?
Emerson's Anand Iyer concludes his Cloud I/O series today with a summation of what the technology may bring to process manufacturers. The more we change things, the more they seem same. Nevertheless, most changes inch us forward into new developments and new futures....
A Primer on Intuitive Control
We continue our series on Cloud I/O from Emerson's Anand Iyer. Today's post is a primer on intuitive control. When we have an I/O cloud or bubbles of IO information with very less binding of the IO and a more free choice (within certain boundaries), there is an...
Process Automation Systems of the Future
Emerson's Anand Iyer continues his series on Cloud I/O with his vision for what the future might hold for process automation systems. Let us look at what effect the cloud IO concept would have on the distributed control system (DCS) as we know today:The IO cloud forms...
Lambda Tuning-Yeah or Neah?
I saw a recent ControlGlobal.com article by process control legend, Greg Shinskey, The Case Against Lambda Tuning. He writes: In recent years, this practice of emulating model-based response using PID controllers has been simplified with the introduction of "Lambda"...
ISA pH Control Solutions Web Seminar by Greg McMillan
This Wednesday, November 9, 2011 at 2-3:30pm EST (19:00-20:30 UTC), ModelingAndControl.com's Greg McMillan will be a pH Control Solutions web seminar. Greg is also the author of the book, Advanced pH Measurement and Control, 3rd Edition. Here's the seminar abstract:...
Industrial Applications of PID Control
Modeling and Control blog's Greg McMillan continues to share his process control expertise with the world. He's working on another book, PID Control in the third Millennium - Lessons Learned and New Approaches, which is targeted for release this summer. Greg has...
Applying Feedforward Control Successfully
If feedforward control is not part of nor been successfully applied as part of your overall process control strategy, you may want to give Modeling and Control blog's Greg McMillan's recent article a read. The Intech magazine article, Feedforward control enables...
Capacity Improvement is Major Batch Optimization Objective
In the process optimization blog category, most posts highlight ways to optimize continuous processes. Many of these processes are energy intensive and energy efficiency is often the objective of optimization efforts. But what about batch processes? I saw an email...
Operational Gains with Foundation Fieldbus
Emerson's Jonas Berge alerted me to a series of Asia Pacific region seminars on Foundation fieldbus. The Singapore Fieldbus Foundation site has links to the presentations given for the seminars held in Malaysia, Taiwan, and one in Singapore for the water/waste water...
Giving PID Feedback Control a Whirl
Today's Modeling and Control blog post, PID Feedback Control, by Emerson's Terry Blevins, describes the impact unmeasured disturbances can have on a process. Trying to manually control these disturbances is difficult, given the increasing complexity of process...
Wireless versus Wired Process Control Performance Analysis
I just saw a tweet about WirelessHART being used in control applications. I followed the link to a ControlGlobal.com article by Emerson's Terry Blevins and the University of Texas' Frank Seibert. The article, WirelessHART Successfully Handles Control describes how...
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