What’s PLC?

PLC stands for “programmable logic controller.” PLCs are used to control machinery, light switches, and other devices that need to respond quickly to follow programmed commands. A PLC has a CPU and input and output elements. It scans the input, and then, following the logic programmed into it, starts or stops the output devices.

PLCs can use a variety of languages, including Ladder Logic, as well as variants of Basic and C.

Another of the big differences between a PLC and a PC is that PLCs are generally designed for use in extreme environments, so they can handle more heat, dust, moisture, and so on than a PC can. They are also more flexible and versatile when it comes to input/output choices.

However, PLCs are increasingly able to communicate with tablets and smartphones as well as desktop computers.

The language that Indramat PLCs use is IndraLogic. New Indradrive components are using IndraLogic2G, but earlier versions were used in Indramat components.

While the newest IndraLogic PLCs can be used as PC-based PLC systems, Indramat included both controller-based PLC systems and drive-based motion-logic systems. IndraLogic can handle all three.

This type of system is a far cry from new artificial intelligence systems, but they control industrial automation exceedingly well.

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