In the mid-1970's, new Programmable Logic Controllers (PLCs) were rapidly replacing electromechanical relays inside control panels. Early PLCs were essentially just relay replacers. They lacked power and speed, but their impact on the shop floor was profound. Control panels were downsized, complex wiring was eliminated, and maintenance was drastically reduced. Learn how the technology evolved from there in this report from engineering.com.
How a Disruptive Technology Evolves: Programmable Logic Controllers
Guest post from LiveWorx partner engineering.com
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