PLC = programmable logic controller, a digital operation electronic system, is specially designed for industrial environment applications. It uses a programmable memory to store programs, perform logical operations, sequence control, timing, counting and arithmetic operations and other user-oriented instructions, and controls various types of machines or production processes through digital or analog input/output. It is the core part of industrial control, and PLC = programmable logic controller. In addition, PLC has the following name: PLC = power line communication, which is also commonly known as "power line access". PLC = public company limited, public company limited by shares, listed company. Power line carrier, power line carrier, power line carrier, power line car. PLC = power load control, dynamic load control. PLC = preparative chromatography, preparative chromatography. Programming Language Committee [United States]