PLC

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PLC

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PLC

(1) (Power Line Communications) See broadband over power lines.

(2) (Programmable Logic Controller) A programmable microprocessor-based device that is used in discrete manufacturing to control assembly lines and machinery on the shop floor as well as many other types of mechanical, electrical and electronic equipment in a plant. Typically RISC based and programmed in an IEC 61131 programming language, a PLC is designed for real-time use in rugged, industrial environments. Connected to sensors and actuators, PLCs are categorized by the number and type of I/O ports they provide and by their I/O scan rate.

In the late 1960s, PLCs were first used to replace the hardwired networks of relays and timers in automobile assembly lines, which were partially automated at that time. The programmability of the PLC enabled changes to be effected considerably faster. Contrast with PAC and DCS. See IEC 61131.
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References in periodicals archive ?
The second one used a fuzzy logic controller. The based power generation of the system was 3.1 kW.
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For electricians and industrial technicians with no previous programmable logic controller (PLC) experience, this practical guide to industrial logic controllers provides practical information on the basic principles of PLCs, and maintenance and troubleshooting procedures.
The paper presents closed loop model of two-mass electromechanical system with speed feedback and fuzzy logic controller.
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Marathon[R] SLA labelers combine Marathon SL technology with a complete Allen-Bradley drive-train and controls platform consisting of servo drives, servo motors, programmable logic controller and human machine interface as well as reconfigured electrical control cabinets.
To accompany the program, the college purchased an educational tooling package that includes an industrial robot, integrated vision system, programmable logic controller and robot training cart ROBOGUIDE simulation software.
In this paper, focuses on a speed control system using a fuzzy logic controller for a Brushless AC Motor.
The ESW-48 programmable logic controller and touch-screen operator interface allows fast, simple and precise set up and also provides machine diagnostics.