Category Archive: Uncategorized

May
14

Future Perspectives of PID Control

Willy Wojsznis IFAC PID12 Panel

A panel on Future Perspectives of PID Control of was the highlight of the second day of the IFAC PID’12 conference. The panel chairman was Professor Karl Astrom who is widely known throughout the control community for his many contributions in process control. Willy Wojsznis was the speaker on the panel from Emerson. The short …

Continue reading »

Apr
23

Control Using Wireless Devices – Conclusions

Field experience using WirelessHART in control applications may be summarized in the following manner: WirelessHART measurements may be used in closed loop control applications.  Window communications mode minimizes power consumption PIDPlus is a standard feature of DeltaV and works with standard WirelessHART devices.  Standard DeltaV Tools support Simulation and Tuning. The performance of PIDPlus in …

Continue reading »

Jan
12

How to Succeed – Part 9

To support the check list in part 8 to get the most out of your PID, we offer some of the considerations in the use of PID features. The number of PID options and parameters can seem overwhelming at first. Hopefully the knowledge gained here will foster an appreciation of the flexibility and capability leading to a …

Continue reading »

Nov
17

How to Succeed – Part 2

Our profession is learned on the job by example and ad-hoc, incidental, or formal mentoring. Experienced APC and E&I engineers have largely left the building. In the new millennium we started a runaway reaction with an accelerating loss of expertise. Are we at a “point of no return?” Is the demise of our profession at …

Continue reading »

Jun
13

Power House Steam Generation

Power House Steam Generation

To achieve best overall plant operation, it is often necessary to coordinate the operation of equipment in multiple process areas. In Chapter 16 of Control Loop Foundation – Batch and Continuous Processes, some examples are given where multi-loop techniques may be effectively used for such coordination. One of the examples from this chapter is power …

Continue reading »

May
11

test

test

Apr
18

Hello world!

Welcome to WordPress. This is your first post. Edit or delete it, then start blogging!

Nov
09

Feedforward Control – Deminar 11 Dec 1

Deminar 11 “How to Setup and Adjust the Dynamic Compensation of Feedforward Signals” has been rescheduled from Wed Nov 17 to Wed Dec 1 (10 am CST not CDT). We will explore the adjustment of feedforward delay, lead-lag, and gain for the traditional PID and the smart PID for wireless (PIDPlus).

Oct
03

Short Course on Control Loop Foundation

Emerson Exchange was held Sept 27th – Oct 1st, 2010 at the Henry B. Gonzalez Convention Center in San Antonio, Texas. Since Control Loop Foundation – Batch and Continuous Control was hot of the press, Mark Nixon and I took this opportunity to provide end users a detailed view of the book content. Jim Cahill …

Continue reading »

Jul
12

July Deminars Rescheduled for August

The following Deminars have new dates: (7) PID Control of True Integrating Processes (How to Reduce the Batch Cycle Time for Temperature and pH Loops by 25%) – Aug 11, 10:00 am CDT (8) PID Control of Runaway Processes (How to Improve the Performance of Exothermic Reactor Temperature Loops) – Aug 25, Wed 10:00 am …

Continue reading »

Older posts «