The twentieth-century philosopher Ludwig Wittgenstein once wrote that: “Logic takes care of itself; all we have to do is to look and see how it does it.” These words bring out the crux of the problem ...

Programmable logic controllers (PLCs) are used extensively throughout the world. Over time, they have advanced to become more user-friendly, efficient, smaller, and less expensive. Different types of ...

Although wrapping one’s brain around the concepts of positive, negative, and assertion-level logic can require some mental gymnastics, understanding these topics can be very rewarding. Although ...