Category Archive: Process Control

Feb
19

Display content – part 2

A mistake often made with operator displays is to limit the scope of the design work to mimic the process equipment shown on P&IDs and Process Flow Diagrams (PFDs). These initial displays include measurements, valves and final control elements. They include enough of the process equipment and piping so that the process flow can be …

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Feb
12

Display content – part 1

Last week the topic was mobile. The discussion focused on different views such as display lists and alarm lists. These views provide the user with information specific to what they are interested in. In the last blog I said I would talk about display content.  To begin this discusstion I’ll start with a refinery and …

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Feb
03

DeltaV Mobile

In process manufacturing the operator station allows operators to rapidly assess a set of distinct systems or situations under their span-of-responsibility and determine where attention is needed on a moment-by-moment basis. If a problem exists, the features of the operator station directs the operators to displays from which they can troubleshoot and take action. So …

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Aug
11

Retirement, Fond Memories

I am retiring from Emerson later this month. It has been a real pleasure working at Emerson and to share with subscribers of this blog some of my work on control and simulation. I greatly appreciate the many opportunities I had to help shape the control capability in DeltaV, to lead the function block application …

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Jul
04

Wireless Model Predictive Control Applied for Dividing Wall Column Control

Willy Wojsznis presented a paper on Wireless Model Predictive Control Applied for Dividing Wall Column Control at the Second International Conference on Event-Based Control, Communication and Signal Processing, EBCCSP2016. This paper was co-authored by me and Mark Nixon and Bailee Roach, University of Texas at Austin. The Conference was held at the Department of computer …

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Jun
27

Automatic Control: Future Challenges, Solutions, and Systems

I had the pleasure of attending the Second International Conference on Event-Based Control, Communication and Signal Processing EBCCSP2016, Krakow, Poland, June 13-15, 2016. On the first day of the conference I gave an industrial keynote presentation on Automatic Control: Future Challenges, Solutions, and Systems. Also, Willy Wojsznis attended the conference and presented a paper. Below …

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Jan
18

Wireless Control Foundation – Part 3

In this Part 3 of the Wireless Control Foundation short course given at Emerson Exchange 2015 , Terry Blevins and Mark Nixon address Discrete Control Using Wireless Field Devices, Model Based Control Using Wireless Transmitter, Wireless Model Predictive Control, Applying Wireless in Legacy Systems, Simulating Wireless Control, Book Web Site. If you have an interest …

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Jan
11

Wireless Control Foundation – Part 2, Continuous Control

In this Part 2 of the Wireless Control Foundation short course given at Emerson Exchange 2015 , Terry Blevins addresses continuous control using wireless transmitters and control using wireless throttling valves. If you have an interest in learning more about wireless control then you can view a video of this presentation using the link below.

Jan
04

Wireless Control Foundation – Part 1, Background

Mark Nixon and I hosted a short course at Emerson Exchange 2015 titled Wireless Control Foundation. In this short course the book authors present key areas of the book Wireless Control Foundation that was published by ISA in October, 2014. This book addresses control techniques that enable closed loop control using wireless valves and wireless …

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Dec
21

Control With Wireless – Part 4, Wireless Control Using ROC800

At Emerson Exchange 2015 Eric Cytrynowicz, Emerson Process Management, participated in a technology forum on control with wireless. In his presentation, Eric discussed applications that can be address in upstream oil and gas applications using wireless transmitters and wireless valves. In his presentation Eric discussed work to add PIDPlus capability to the ROC800 to support …

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