A brief introduction to the programmable logic controller

The Programmable Logic Controller (PLC) refers to industrial digital computers designed to control various manufacturing equipment such as industrial robots, escalators, power plants and assembly lines. These sophisticated tools are used to control production processes where sound controls, flexible programming, and ease of troubleshooting are of mental significance.

The importance of industrial computers grows in applications where accuracy is critical to zero error. Initially, the automotive industry used computer-driven systems to replace cam timers and hard wire relays. Computer-controlled devices have become a vital part of industrial process control and factory automation.

Unlike a personal computer, the PLC can handle rugged industrial environments where temperature, humidity, dust, mechanical shocks and other hazards prevail. Manufacturers need a variety of equipment to create products and end-users.

Any equipment or device that produces something in an establishment must work within a time interval. For example, in the automotive industry, a tool or set of tools is used to paint the outer surface of the vehicle and operate the other machine on the machine. One of the functions of industrial digital computers is to set the exact time of the machines so that all the processes can be perfectly harmonized.

Industrial computers were introduced in the 1960s and manufacturers in the past relied on cam timers, relays and other similar devices to simplify their manufacturing processes. They regulate a wide range of applications ranging from small production systems to large-scale processing plants. One of the advantages of PLC is as follows:

  • Easy Maintenance and Installation
  • Accuracy and Reliability
  • Cost Effectiveness
  • Low Power
  • Greater Flexibility and Integration

CPUs, inputs and outputs are three basic components of the industrial digital computer. Like a personal computer, the CPU is part of the brain as a computer, as it processes all communications, arithmetic, logic and memory operations. The PLC's memory is almost the same as the personal computer.

As mentioned earlier, the ability to work effectively in hard industrial environments for years makes PLCs different from personal computers. The digital computer must be flexible and configurable. The 21st century process control expects functional flexibility, excellent performance, and a smaller form factor of the regulatory system.

The rapid development of industrial automation technology has allowed manufacturers to produce high quality, cost-effective and large-scale products. Powerful industrial computers, robots, sensors, intelligent and automated tools for the present and future of modern industries. It would be difficult for industries to remain competitive in the future without incorporating state-of-the-art industrial technologies.

Source by Syed Ali Zain-ul-Abideen

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