plc stands for Programmable Logic Controller and is a type of programmable logic controller. Today, this controller plays an important role in the management and planning of industrial sectors and leads to better management of processes in this sector. Considering the important role of PLC, in this article, we will review PLC, its advantages and applications.
What is PLC and how many parts does it consist of?
PLCs are based on microprocessors, and by having components such as timers, counters, and transfer constants, they make it easy to control complex processes. PLC components are various, input, memory, processing, output are some of the most important components of PLC.
The input information is received through the sensors and stored in the memory, this information is processed according to the commands in the memory and then the outputs are made in a suitable way. Each PLC has its own programming language, which is the interface between the user and the PLC hardware.
The most important PLC programming methods are: ladder method, flowchart method, sentence list method, which we will examine in the following articles.
PLCs have different types and brands. Siemens and Delta PLCs are among the most famous PLC brands in the country.
In the rest of the text, we will introduce the advantages and applications of PLC and its use in the industry.
What are the advantages of PLC?
As it was said, the use of PLC leads to better management of an industrial machine. The use of PLC has made the traditional methods of managing machines obsolete, and human labor is no longer needed, and these machines work automatically using PLC commands.
Another advantage of plc is easy troubleshooting. In industrial systems, for troubleshooting a system, different parts had to be examined. Meanwhile, with the help of plc, this work is intelligently recognized, and the problem can be fixed faster.
Also, using this board can increase the efficiency of a production machine. and at the same time maintain the quality of the products. As a result, a successful project can be launched using this internal computer.
In general, the advantages of plc are:
1- The use of PLC reduces the volume of control panels.
2- The use of PLC saves a lot of money.
3- PLC does not have mechanical consumption, so in addition to longer life, it does not need periodic service and repairs.
4- PLC energy consumption is much less than relay circuits.
5- PLC does not create audio and electrical noises.
6- Troubleshooting control circuits with PLC is quick and easy and usually PLC itself has a troubleshooting program.
What are the uses of plc?
Among the most important applications of PLC, the following can be mentioned:
Automotive industry (paint spraying systems, drilling systems, parts connection systems, parts and equipment testing systems, automatic presses, etc.)
Chemical industry (used in devices that combine materials with each other, mixing systems, etc.)
Plastic manufacturing industries (used in air blowing systems, plastic analysis production system, etc.)
Food industry (packaging, extracting, etc.)
Steel and iron smelting industries
Transportation industries (transportation equipment, conveyors, etc.)
Construction industry (automatic lighting, elevator, air control)
Energy conversion industries (gas recycling systems, waste recycling, gas pressure boosting stations, etc.)
And in general, most industrial machines
