Dedicated Controls

Dedicated Controls April 17, 2013

Power management: Automation enhances power management applications

Strategically approaching plant upgrades and automation projects can help users extend the serviceable life of their equipment while improving the efficiency, reliability, and safety of their systems.

By Kenneth Kopp, Eaton
Dedicated Controls April 9, 2013

The loop, the whole loop, and nothing but the loop

Sometimes we need to think about an individual control loop. Other times we need to consider the larger control system. You should be able to do either when appropriate.

By Bruce Brandt, PE
Statue of Liberty rescue elevator has a 25 hp ABB ACS800 Variable Frequency Drive (drive) with Direct Torque Control (DTC), ABB’s patented motor control technology. The drive controls the two 10 hp SEW-Eurodrive motors that move the elevator and collabora
Dedicated Controls April 4, 2013

Top Control Engineering articles, March 2013

The most-visited articles at www.controleng.com during March 2013 included the following topics: PID tuning evolution, salary and career survey 2013, remote I/O, model-based control, Statue of Liberty motion control, virtualization, robotic survival checklist, and cloud-based APC, among others.

By Mark T. Hoske
Dedicated Controls March 18, 2013

Motion control: Statue of Liberty rescue elevator

Application Update: At the Statue of Liberty, the new fast, efficient rescue elevator features a smooth ride to the top, ensured by a motor drive, to improve safety, emergency access, and evacuation for the crown jewel of U.S. statues and tourist destinations.

By Mark T. Hoske
Dedicated Controls March 13, 2013

Evolving PID tuning rules

A brief history, starting with the earliest PID controllers to the most recent developments. There is more continuity than you might expect.

By Willy K. Wojsznis, Terry Blevins
Dedicated Controls March 13, 2013

Do-it-yourself model-based control

When regulatory control can’t do the job, and you can’t find an off-the-shelf APC package, your only option may be to build your own. It’s not easy, but it can be done and good ones can make a world of difference.

By Peter Welander
Dedicated Controls February 26, 2013

Advancing control

Concepts of APC can be implemented a little bit at a time but still make big steps toward getting your process running better.

By Bruce Brandt, PE
Dedicated Controls February 19, 2013

The benefits of reusing control logic

Don’t think it’s lazy—reusing effective control system strategy and programming can help you identify problems.

By Matt Dougherty
Dedicated Controls February 8, 2013

Top Control Engineering articles, January 2013

The most-visited articles at www.controleng.com during January 2013 included the following topics: U.S.-manufacturing of medium-voltage drives, decentralized process control, a new engineering research center, 5 ways to enable the next generation workforce, automation programming, and Ethernet communications, among others.

By Mark T. Hoske
Dedicated Controls February 4, 2013

PLC vs. PAC

These technologies continue to evolve, making differences harder to distinguish. Here are some thoughts on what does what, and how to choose between a PLC and a PAC for your next application.

By Jeff Payne