Just over a decade ago, an article titled, "Advanced Control Strategies Move into the Field" (Control, October 2008), highlighted three evolving trends in the process control world that would "make ...
Basic process control systems—also known as Level 2 in the Purdue Enterprise Reference Architecture (PERA)—has formed the basis for successful process manufacturing for decades. During that time, ...
The I/O capabilities built into most microcontrollers make it easy to measure the analog world. Say you want to build a data logger for temperature. All you need to do is get some kind of sensor that ...
While process manufacturers have justified nearly 30 years of automation investments on the observations of one man, today’s control loop performance monitoring technologies are providing new, ...
Spare a moment’s pity for the process engineer, whose job it is to keep industrial automation running no matter what. These poor souls seem to be forever on call, fielding panicked requests to come to ...
In a process plant, there are many operational layers that need to be monitored for anomalies as a matter of safety and security. But flooding the operator with too many alarms, some of which may be ...
PID loops are a central component of modulating boiler control systems with applications ranging from basic steam header pressure control to cascading 3-element drum level control. A modern ...
Switching power supplies rely on feedback control loops to ensure that the required voltage and current are maintained under varying load conditions. Design of the feedback control loop influences ...