Sunday, August 28, 2016

PLC: A Computer-Based Industrial Control System




When you visit an industrial company, you will see how the machines work automatically with single touch. It can be said that such industry uses application of programmable logic controller to control the all the equipments involved in industrial process.

PLC stands for Programmable Logic Controller is a certain computer device that offers the operator with some exceptional features such as sequence controllers like timers and counters.

Surprisingly, the application of programmable logic controller is not only used in industrial company, but also in some home utensils such as washing machines, traffic signs or elevators. The widely used of this control system leads some of the manufacturers launch different type of PLC in the market.


The Parts Of PLC
The application of programmable logic controller helps the operator to monitor the work of the machines through the sensors integrated in the system. PLC itself consists of three modules like CPU module, power supply module and I/O module.

  1. CPU module
  2. One of the main parts of PLC is the CPU module that falls into some parts namely central processor and memory. In PLC, the processor is in charge of processing the data by performing the appropriate computation that is latter displayed in the form of proper output.


  3. Power Supply Module
  4. The application of programmable logic controller requires DC power, so that the use of power supply module will convert the AC power into DC power. The DC power is required by the I/O modules also CPU to run the computer circuitry.


  5. I/O module
  6. The third part of PLC is the input and output module that will be connected to the sensors in the system to detect the parameters such as pressure, temperatures and so on. The input and output module consists of two types namely digital and analog.


The Application of Programmable Logic Controller In Some Industries

application of programmable logic controller


As mentioned before, PLC has been long largely used in some of industrial company due to its efficiency and effectiveness. Automobile industry, electricity industry are the examples that function the application of programmable logic controller to run the machines.

Apart from those mentioned industries, glass industry is also use PLC to flattening the glasses and so on. Besides that, the cement industry also applies the PLC to mix the materials and to make sure that all the output is in best quality.

PLC (Programmable Logic Controller) is kind of device that is not only found in industrial company, but also in some civil applications. The application of programmable logic controller helps the operator to run all the machines with no great efforts. Besides, the application of programmable logic controller involves some cycles from inputting the data until producing the output that run the machine.


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