I agree, most people assume they know more than a manual and try to figure things out on their own. In this case it seems most people were not reading how the sensor would load and unload with the switch turned on causing all the headaches. Such a simple solution!
When buying a sensor or motor on the job, the first thing that I do is read the instruction manual for correct wiring and setting diagrams, but when I buy a component for the house, I figure that I know better than any manual. Sometimes the hidden items like the auto load function are worth the read.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.