Date: March 2025 

Publication: ControlGlobal

Description: How Plummer Forest Products quickly overcame a fire and devastation to its control system by implementing high-performance automatic control on very complex interacting loops with deadtime

https://www.controlglobal.com/control/loop-control/article/55274744/dealing-with-deadtime-plummer-forest-products-control-loop-solution

Date: March 2000 

Publication: TAPPI/ISA Process Control Conference Proceedings, Williamsburg, VA

Description: This paper demonstrates how modern database tools can be used to greatly improve the productivity of tasks on a control system. The example involves a DuPont facility in which a very large Honeywell TDC 3000 control system was converted from older to newer vintage of field network and control devices. This involved translation of control algorithms, IO assignments, HMI, system configuration, and other critical data.

Date: March 2009

Publication: ISA International Instrumentation Symposium, League City, TX

Description: This paper addresses the benefits and shortcomings of control system applications based on OPC. A case study at Austin Energy’s Decker Power Plant provides the basis for the presentation. It is found that OPC provides great benefit, but the implementation of this standard in the industry is severely lacking in diagnostics to help the end user when problems arise. 

Date: March 2012

Publication: ISA Bluebonnet and Brazos 

Description: With the introduction of wireless protocols for field instruments, their use in closed loop control can present unique challenges. The presentation discusses Emerson’s enhancements to PID control used with wireless instruments to ensure the challenges are addressed to provide the best loop performance.

Date: September 2016

Publication: Control Engineering, used as a reference for the ISA CPA exam

Description: Proportional-integral-derivative (PID) theory is best introduced as the familiar second order differential equation via the velocity form instead of the more traditional positional form

Date: July 2017

Publication: GPA LinkedIn page

Description: While Honeywell TDC 3000 is no longer a state of the art control system, there is a lot of it still in operation. Many users like its durability and reliability. The PM/APM/HPM family of controllers which were created for the Universal Control Network (UCN) remain prolific. For a facility with a large investment in this hardware and an unwillingness to replace it, expansion of IO capacity to handle new process equipment presents a challenge. A remote IO cabinet presents a solution.