What Do Programmable Logic Controllers Do?
In order to understand exactly what they do, it is important to understand what they are. A PLC is used to both control and troubleshoot large machines. Think of the PLC as the brain for an automated machine, such as an assembly line. A single PLC can replace thousands of relays that were used in older electrical panels. This makes it much simpler for maintenance technicians to make changes, because no re-wiring is involved, only some minor reprogramming. The overall purpose of the PLC was to replace the electromechanical relays that were commonly found in industrial environments. As logic elements, they are able to emulate the interconnection of thousands of relays in order to perform designated tasks. Where Are Programmable Logic Controllers Used? Programmable logic controllers have been widely adapted to perform a variety of automation tasks. Normally, they will be found streamlining industrial processes in manufacturing plants. This is because the cost of developing and maintaining
