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.
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.
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.
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.
A brief history, starting with the earliest PID controllers to the most recent developments. There is more continuity than you might expect.
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.
Concepts of APC can be implemented a little bit at a time but still make big steps toward getting your process running better.
Don’t think it’s lazy—reusing effective control system strategy and programming can help you identify problems.
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.
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.