I traveled to Germany earlier this year for a meeting with Namur to present Emerson’s approach for addressing control applications using WirelessHART devices. WirelessHART transmitters have been installation by many plants in Europe. The reliability of these devices has been well established and many of these plants are now interested in using WirelessHART transmitters in closed loop control applications. The PIDPlus capability in DeltaV is specifically designed to enable closed loop control using WirelessHART devices. This presentation was well received by the members of Namur. Thus, we decided to present much of this information as a workshop at Emerson Exchange, 2012. I co-presented this workshop with Marty Zielinski and Mark Nixon. Below is a picture that was taken during the workshop presentation.
I received permission from the Emerson board to record the audio portion of the presentation. Using the tools available in Slideshare, I have combined the audio with the slides to create a video of the presentation. Thus, if you did not attend Emerson Exchange 2012 and would like to learn more about the PIDPlus capability in DeltaV then you can see the slides and listen to the presentation using the embedded link below.
The total presentation is 31 minutes in length. If you do not have time to listen to the complete presentation, then using the controls that are provided above you can skip to the portions of the presentation that are of interest. Below is the approximate time at which we start to discuss a new topic.
- Introduction 0 minutes
- Challenge – Control Using WirelessHART 3
- Emerson’s Solution (PIDPlus) 4
- PIDPlus Design 11
- Addressing Setpoint Change 13
- Control Performance Using PIDPlus 14
- Recovery from Loss of Communications 18
- Tuning PIDPlus 21
- Bioreactor Installation 22
- Stripper/Column Installation 24
- Discrete Control 28
- Summary, References 31
If you are interested in learning more the PIDPlus capability in DeltaV, then more details are provided in the Intelligent PID chapter of Advanced Control Foundation – Tools, Techniques, and Applications. This book is available for purchase at the ISA web site and Amazon. The web site for the book can be freely accessed by anyone using their web browser. By accessing the Intelligent PID workshop you can watch a 10 minute YouTube videos in which the performance of PID with a wired transmitter is compared to that achieved using PIDPlus and a wireless transmitter.