PLC or Programmable Logic Controller is an electronic system used for industrial settings. It is used to control different kind of mechanical systems as well as applications. PLC is very important today because our world heavily relies on technological advancements. Almost everything in our society has PLC in it. From factories, Offices, hospitals to traffic lights, kitchen appliance and to simple computer consoles. Programmable Logic Control is the heart of almost all technologies today and most of us don’t even know about that. People don’t realize that PLC has been the most important part of our lives. Listed are the everyday machines that PLC controlled. To know more about Programmable Logic Controller, visit here.

Traffic signals

Road life would be very different if traffic signals were not invented. That red, yellow and green colors are known all over the world to help ease traffic jams. PLC has been in every modern city all around the world. In fact, PLC is used in traffic signals since it was first used in London, England in 1926. Traffic lights are controlled and monitored by Programmable Logic Control, both its hardware and software systems. If you noticed during rush hours, the traffic lights run differently compared to when it’s not rush hour. Traffic is interrupted when someone pushes the button to cross at the intersection or when there’s an accident, it seems that traffic lights react with it. That’s all sensors, transponders and Programmable Logic Control circuitry. PLC controls every aspect of the traffic system.

Automated car wash system

Every city that has cars will have car wash businesses everywhere. Today, the car wash system uses automation and touch-less system to give a better and comfortable experience. When you enter the automated car wash, a combination of water and soap will be sprayed on your vehicle. Together with spinning wipers, the car wash system will scrub, wash and dry your car without delay since it is automated. The amount of soap, water and cleaning agent, as well as the amount of spin wipers use, are controlled by a central system that uses Programmable Logic Control. Automated car washes heavily relies on PLC since most of these businesses have little to no human interaction (well, except for the people pushing the start button).

Elevators

The elevator is one of the most important comfort devices ever invented. Imagine walking 100 stories up. Every high-rise building uses elevators, no matter how short or tall the building. Elevator industry has developed from the first the manual to automated, hands-free elevators. Elevators use a PLC program that detects what floor the rider is in and what floor they will get off. The PLC directs everything that is running around the elevator system. The programs used to run a ladder logic language that was then put in the PLC that controls the lift. The control system is usually located at the top of the building, not in the elevator itself. Elevators usually perform in a systematic way, not the first come, first served basis that most people believed. They are being programmed and being controlled by the PLC to take the most logical route, whether there is still pending buttons or not. The PLC will now decide where to go first based on the logic given by the program.

Automated doors

The first automated doors have been a liability rather than comfort. Most old automated doors don’t have controls so whenever it opens, it might hit someone walking after you. Today, automatic doors use PLC that can control the door better and can sense if someone is walking in and won’t close until everyone has safely walked-in. It has sensors built-in on both sides of the door to prevent accidents. There are many steps on how the automatic doors work, but in general, the doors operate with the help of detectors and infrared lights that sends signals to the PLC to direct whether the door will open or close. Most automated buildings have RSLogix 5000 training since it is the most common logic program used in automated doors.

Conveyor belt

Conveyor belts are everywhere. Supermarkets, hospitals, schools, hardware stores, I mean everywhere. Conveyor belts move things depending on how fast or slow the user wants it to run. Imagine shopping at your favorite supermarket and that supermarket doesn’t have a conveyor belt in their cashiers. It will be very inconvenient not only to you, to other shoppers as well as the cashier itself. PLC help conveyor belts control the speed and timing of the belt. Industrial conveyor belts can be found in airports, delivery companies, and factories. It needs a more complex Programmable Logic Control system than the conveyor belts found in the supermarkets.

Amusement park rides

Many people thought PLC can only be used in an industrial setting. But in reality, even amusement parks use Programmable Logic Control in their rides like the roller coaster, Ferris wheel, merry-go-round and many more. PLC controls everything from the speed of the rides, the height, even the timing of the rides. For example, if you are riding a roller coaster, the PLC will control how high the coaster will go before it drops. It also uses PLC in its safety measures, making sure the coaster will not run back when it should be running forward.

Visit http://www.amusementtechnical.com/theme-and-amusement-park-ride-technical-services-and-engineering/park_ride_control_systems/ to know how amusement parks use PLC in their operations

Almost everywhere, you will find different uses of PLC. It plays a very important part in making everyone’s life easy and comfortable. With today’s fast-paced, technology-driven, hi-tech lifestyle, PLC has been more important than it used to be in the past. PLC was invented for the sole purpose of helping industrial facilities work faster and more accurate. But today, PLC is not limited to industrial purposes alone. Technicians and engineers that work with Programmable Logic Control system are still developing the PLC to greater heights. There will come a time that PLC will become the most important technology on our planet with automation technology improving by the minute. We can assure that PLC will still improve and develop to make people’s life better.

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