John Rezabek closes his ControlGlobal.com Surprise! Field-Based Control Beats DCS article with the thought: The SP50 committee set out years ago to define and specify a robust, vendor-independent controls suite exploiting the intelligence of microprocessor-based field...
Mark Coughran
Dispelling a Rules of Thumb in Foundation Fieldbus Segment Sampling Rate
On the Fieldbus Foundation Forums is a recent post, Macrocycle for control in the controller. The post begins: I have seen many posts about scheduling and macrocycle calculation for control-in-the-field (CIF). I have some doubts about control-in-the-controller (CIC)...
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...
Guidance for Good Dynamic Control Loop Performance
If ever there were a need for dynamic control, it would be for the global bond and equity markets this week. Instead of tackling that global challenge, with today's post I'll highlight Emerson senior process control consultant Mark Coughran's Emerson Exchange...
Advice for Batch Reactor Temperature Control
Emerson's Mark Coughran has been busy sharing his process control expertise lately. His latest article, Improve Batch Reactor temperature control, appears in the June issue of Chemical Processing magazine. Mark describes three batch reactor temperature control cases...
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...
Clarifying the Lambda Tuning Method
The Automation List on Control.com recently had a question about IMC Tuning for Integrated Processes. I googled around for IMC or internal model control for a good definition and found these 2002 Introduction to Robust Control lecture notes:The Internal Model Control...
Advice on Water Line Discharge Pressure Control
In spite of my best efforts to use persistent RSS search feeds in order not to miss any news about Emerson experts in action, here's one that got by me. Mark Coughran, a consultant on Emerson's Advanced Applied Technology team, shared this control challenge question...
PAT Seminars at Interphex 2007
From my prior post with Greg McMillan and his thoughts on PAT and Advanced Control, I neglected to mention that he will be at the Interphex 2007 Conference & Exhibition next week presenting two seminars in the Emerson booth (#2354). The seminars will be held 1:30pm on...
Nine Control Fundamentals
I came across the following nine control fundamentals according to Mark Coughran, a consultant on Emerson's Advanced Applied Technology team. These are based up his years of experience working with process manufacturers to optimize their performance. You may recall...
Better Planning Your Plant Turnarounds
Periodically most continuous running plants must schedule a shutdown to perform the maintenance activities which cannot be done while the process is running. The process of managing this period while the plant is shut down is commonly known as a turnaround....
Critical Pressure Control for Turbomachinery
You know you need to periodically get your car's oil changed and the lube oil system checked if you want the engine to last over the life you own your car. It's the same for many process manufacturers who have large, critical turbomachinery assets. These can include...
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