Feedback loops control discrete, continuous processes
Arguably, the most basic tool of the control engineering profession is the feedback loop, shown below. It consists of five fundamental elements: This measure-decide-actuate sequence repeats as often as necessary until the desired process condition is achieved. For a continuous process, a feedback loop attempts to maintain a process variable (or manipulated variable) at a desired value known as ... Control Engineering
Rugged network connectors
Myriad industrial network options are only exceeded by the styles and brands of rugged connectors—designed to protect the points linking measurements, logic, actuation, and points in-between and beyond. Robust network connector design can vary by network type (fieldbus, device bus, sensor bus), application, industry (such as electronics, robotics, or nuclear), manufacturer, and standards ... Control Engineering
DC-injection lets motors do the braking
Much is made of increasingly dynamic performance available from electric motors (and drives), and rightly so. The other side of the equation is ability to stop all that speed and acceleration efficiently, when needed. External braking is the more familiar stopping method, but three-phase ac induction motors provide internal electronic means to slow and brake their motion—among them, dc-in... Control Engineering