At Emerson Exchange 2015 Kurtis Jensen, Emerson Process Management, gave participated in a technology forum on control with wireless. In his presentation, Kurtis discuss how a wide variety of discrete control applications have been addressed using wireless transmitters and wireless on-off valves. Also, in his presentation Kurtis provided some information work that is being done …
Category Archive: Final Control Elements
Aug
31
Process Control Using Wireless Sensors and Actuators
Over the last 10 years I have worked with a number of technologists from the process industry on various aspects of control using wireless field devices. Much of this work is summarized in the book Wireless Control Foundation – Continuous and Discrete Control for the Process Industry. Recently Mark Nixon (Emerson) and Willy Wojsznis (Emerson), …
Jul
20
Event Based Control Applied to Wireless Throttling Valves
Willy Wojsznis, Mark Nixon and I co-author the paper Event Based Control Applied to Wireless Throttling Valves for the “1st European Experts’ Workshop On Emerging Trends In Event Based Systems”. In this paper we address the performance achieved in a flow lab using an industrial size prototype wireless throttling valve in closed loop control of …
Feb
16
Control Classes – Dubai
In late November, 2014 I traveled to Dubai to teach the Control Loop Foundation class. This class is based on the book Control Loop Foundation – Batch and Continuous Processes and is a standard class offered by Emerson’s education department. In this class the students used the book’s web site to perform the workshops that …
Dec
08
Using Wireless Throttling Valves in Column Control
At Emerson Exchange 2014 I worked with Stephen Briggs, University Of Texas, Austin and Kurtis Jensen, Emerson Process Management, to co-host a workshop on control using a wireless throttling valve. As addressed in this presentation, we have tested in a flow lab the control performance that may be achieved using PIDPlus with a wireless throttling …
Apr
14
IEC TC65 Standards Work
The international standards for industrial-process measurement, control and automation are developed through IEC TC65. As stated on the IEC web site, the standards developed by TC65 address systems and elements used for industrial-process measurement and control concerning continuous and batch processes. These standards address equipment and systems operating with electrical, pneumatic, hydraulic, mechanical or other …
Apr
07
TC65 Plenary Meeting
Many of the international standards that we depend on in the process industry were created by working groups within IEC TC65: Industrial-process measurement, control and automation. IEC TC65 holds a plenary meeting every two years to review the status of work to develop or update international standards. The most recent plenary meeting was held March …
Mar
31
Wireless Throttling Valve Power Consumption
Something that all manufactures of wireless throttling valves must be concerned with in their design is battery power consumption. In a control application using a wireless throttling valve much of the power available to the actuator is used to track changes in target valve position. To minimize battery power consumption, the number of changes made …
Mar
24
Utilizing Wireless Throttling Valves in Control
Over the last five years a wide variety of WirelessHART transmitters have been introduced by the major manufacturers of field devices. The PIDPlus enables closed loop control using the slower update rate provided by a wireless transmitter. The broad acceptance of wireless transmitters has generated an interest in the application of wireless throttling valves in …