A TESCOM ER5000 series whitepaper, How Electronic Pressure Control Works, highlights PID-based control in pneumatic-powered machinery applications in discrete and hybrid manufacturing operations
A Century of Powerful PID Control
Here is a 5-part series on ControlGlobal.com by Process Automation Hall of Fame member Greg McMillan, The concealed PID revealed.
Knowledge Sharing with ISA Mentor Program
I'm lucky enough to be on the email distribution list for the ISA Mentor Program where automation hall of fame legend, Greg McMillan, shares some of the work he continues to offer well into his golden years. Greg and Hunter Vegas started this program in 2011 with the...
Plan for PID Control Differences in Control System Migration Projects
The typical lives of industrial control systems (ICSs) are measured in decades. Even so, the time comes when reliability and securing replacement parts becomes nearly impossible given the rapid advancement of technology. There is much to plan and do when the time...
Looking Beyond PID Tuning Parameters for Control Performance Issues
When a variability problem emerges in a production process, the first suspect is often to look at the tuning of PID [proportional-integral-derivative] loops. While adjustments can be easily made in most automation systems, this is often not the source of the problem....
Improving Coalescer, Separator and Reactor Control Performance
In adhesive production processes, coalescers and separators are used to accelerate the separation of immiscible liquid (completely insoluble) dispersions. I learned about this from Emerson's Sudhir Jain and Mark Coughran, who shared a recent visit they made with an...
Developing Next-Gen Process Control Leaders
Anyone involved in process control knows the steep learning curve from what is taught in the universities to what is required to safely, reliably and efficiently control an industrial process. Many of the world's foremost experts steeped in this knowledge have retired...
Freely Available Learning Tools for New Process Automation Professionals
A question on PID control in the Emerson Exchange 365 community reminded me how good some of the free, online learning tools are available for engineers new to our instrumentation and process automation ranks. The question: i have a question about PID, about setpoint...
Managing Pressure and Flow Loops on Acid Gas Absorber
At the request of a reader who commented on the last post, here is another of the 11 examples that Emerson's Mark Coughran shared in his Emerson Exchange Denver presentation, Solving Pressure Control Loop Problems in Hydrocarbon Processing Plants. The commenter wrote:...
Loop Tuning Expertise in Your Pocket
Some of the more popular posts here on the blog involve loop tuning. Our Process Optimization category is filled with more than 150 posts featuring the wisdom of many experienced practitioners. One extremely proficient practitioner and prolific author, Greg McMillan...
Contrasting Advance Regulatory and Advanced Process Control
I wanted to bring additional visibility to a great thread in the LinkedIn Process Control group on advanced regulatory control versus advanced process control. The post, So, ARC Can "Replace" APC? is based on a blog post, Advanced regulatory versus model-predictive...
PID Control in 3-Phase Oil and Gas Separation
The PID controller entry in Wikipedia highlights the beginning of proportional+integral+derivative control going all the way back to the 19th century: PID controllers date to 1890s governor design. PID controllers were subsequently developed in automatic ship...
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