What is a PLC? (90 sec)
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- เผยแพร่เมื่อ 15 ต.ค. 2024
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Let's see what exactly a PLC or Programmable Logic Control is in simple terms!
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These videos really do serve as a fantastic refresher when opportunities for professional growth present themselves. I hadn't used certain terms in a very long time. Knowing is one thing, being able to explain it is another. Thanks.
Thank you, Crom! That is great to hear. Happy learning!
This guy's over simplified explanation makes it sound like a PLC is overkill. Why use a PLC when you can use a switch. The answer is that a PLC can be programmed to do stuff at a specific time, input or output condition. You normally use MODBUS to do the PLC programming and a high level external program to do the configuring, like NodeRED.
So just add time relays to the explanation. Thanks, Einstein.
Wrong... dumbass
@@jcnot9712hahaha
Well let's say you want to control the motor from many different locations, but also for those buttons to only be active when enabled from a central location during the start of a work day.
You people are doing a great work. This is like fueling future. Immense love and respect from Pakistan. Keep it up.
Ameer Hamza Thank you Ameer!
very nice to meet you
without compliments, your teaching approach is genius. So genius that you make everything easy like eating pop corn
+Fouzi Boumaraf We're so trilled that you found our training helpful! :)
basic, simple and easy to understand a plc
*REALLY* this channel is a treasure for every automation engineer
thank a lot for this valuable content ♥
from sudan - africa
Great to hear that! Thanks for sharing.
Very clear and straight explanation. Thank you!
You're very welcome!
I fuvking love this video, short and to the point!!! Excellent video ladd
Glad it helped!
With your easy explanation. I understand thank you realpars.
Thanks a lot for your kind comment, Darine! We're very happy to read that.
Short, simple & beautiful explanation ... Loved it.. 💕
Thank you so much!
First of all I want to thanks RealPars team. As a student of mechatronics engineering PLC is my core subject recently i had a industrial visit to SIEMENS mumbai, India I loved the environment there but as visit was only for 3 days I didn't gather enough knowledge as i wanted so then visited to your videos and these videos clears lot of my doubts.
Now, I want to know if somehow i can get any internship or something at SIEMENS that would be amazing please share your knowledge in this subject. Also please tell me more about how can I gain more knowledge of PLC and how can it be useful for my career.
Thanks
Hi Anil, thank you very much for your positive feedback. Working as an intern at Siemens or any other company in the filed of industrial automation and control system design will be a huge help for your career and I highly recommend that. As to your question about learnig PLC programming, we have several videos here on RealPars TH-cam channel that can be a good start. We'll try to add new videos more often. Good luck!
Sir i will consider myself fortunate if u could please tell me how can I apply for internship at SIEMENS, India.
Well they will probably have an online form in their website where you can send your application. As I said you can apply for any other company who works in the field of industrial automation. For more tips I recommend reading this post on our blog: realpars.vhx.tv/updates/5-critical-tips-that-can-get-you-a-job-as-an-automation-engineer
ok thanks again sir.
Wow that was amazing Sir (link you sent me). Thanks for your time and concern. ☺
Very efficient explanation
i really like it. it's clean and understandable
Happy to hear that, Yasin! Happy learning.
Quick, A programmable Logic Controller or PLC is simply a special computer that is programmed to control certain processes in industries like petroleum, steel or automotive. Every PLC is composed of three main parts: Input, CPU and output. Suppose that we have an electrical motor and push button. We want the motor to turn on when the button is pressed. When the button is pressed again, we want the motor to turn off. This function is similar to the function of the power button on your TV remote. To do this, we must first write a program for this operation on a computer and then download it to the CPU. Then we connect the switch to the input and the motor to the output. Now if we press the button, an electricalsignal will be sent to the PLC. The PLC input will deliver this signal to the CPU but first must present it in a format that the CPU can process. Why? because the CPU is a computer system and connot process the raw electrical signal. The CPU will process the data received and send the result to the output. The output turns the data to a raw electrical signal again and applies that to the motor and turns it on. Now if we press the buttonagain, the process repeats and the motor will turn off. Okay.
Rápido, un controlador lógico programable o PLC es simplemente una computadora especial que está programada para controlar ciertos procesos en industrias como el petróleo, el acero o la automotriz. Cada PLC se compone de tres partes principales: entrada, CPU y salida. Supongamos que tenemos un motor eléctrico y un botón pulsador. Queremos que el motor se encienda cuando se presione el botón. Cuando se presiona nuevamente el botón, queremos que el motor se apague. Esta función es similar a la función del botón de encendido en el control remoto de su televisor. Para hacer esto, primero debemos escribir un programa para esta operación en una computadora y luego descargarlo a la CPU. Luego conectamos el interruptor a la entrada y el motor a la salida. Ahora, si presionamos el botón, se enviará una señal eléctrica al PLC. La entrada del PLC entregará esta señal a la CPU, pero primero debe presentarla en un formato que la CPU pueda procesar. ¿Por qué? porque la CPU es un sistema informático y no puede procesar la señal eléctrica sin procesar. La CPU procesará los datos recibidos y enviará el resultado a la salida. La salida convierte los datos a una señal eléctrica sin procesar nuevamente y los aplica al motor y los enciende. Ahora, si presionamos el botón nuevamente, el proceso se repite y el motor se apagará. Bueno.
Thanks for sharing, Luis!
Precise and clear.
Thanks! Just with this short video, i learned how to program!
That is amazing!
upload a video related HMI operation to control parameters and how to search/ study events and graphs.
A complete but easy operation
Thank you for your suggestion! I will happily go ahead and forward this to our course developers.
Very easy to understand
Great to hear that!
@RealPars Sir fantastic I am watching your videos, Trust me way of demonstrating and simulating things is no more available other than you. I just want to learn PLC but its paid to access videos, is there financial aid available for PLC ??
Hi Asif,
Happy to hear that you are motivated to join the RealPars family!
Unfortunately, there is no financial aid available to obtain access to our course library. We do have lots of free content on our TH-cam channel.
Additionally, we have a free course on PLC Hardware bit.ly/2XnnUrF
Hopefully, you will soon be able to subscribe to our course library.
Thank you it was so easy explained and it’s helpful
Great to hear!
Simple and Nice! Thanks!
This video made a sense on me
Glad to hear that!
You can make a motor turn on or off with a simple switch. An integrated circuit is merely overcomplicating the function.
Nonsense, what if I want to control the motor remotely? There are tons of reasons why someone would need this function.
Great video...explanations clear
Glad it was helpful!
Thanks for sharing good presentation
You're very welcome!
Thanks a lot, this was very helpfully.
Great to hear! You are very welcome.
Very useful 90 seconds.
Thanks
Glad it helped!
Very easy n very good video
Super explains, thank you !!!
Glad it was helpful! Happy learning!
Thank អរគុណ
Our pleasure!
I appreciate your explanation thank you
Glad to hear that! You're very welcome.
very easy to remember and to explain someone in short
Thank you, Dheeraj!
really thankful to you
now, look like i get what i really wanted for a long time
That differences this video against the comments in spanish videos. Im mexican student but i believe that the american videos are better!
+Luis Vazquez Garcia Thanks Luis!
+RealPars Do they change the raw electric signal into a language through a compiler? and vice versa?
I'm guessing A/D and D/A converters are used, but I have no PLC experience...
I Agree, we started seeing this in class and I had a hard time understanding. But this video made it seem simple.
So thanks
Very interesting sir, and also clean. i really like it.
+Misbah Khattak You're welcome!
Very nice and Short movie...
Thank you very much , you make it easy for me 🙏🏻
Great to hear! You're very welcome.
Thanks
Hi! And good evening. My name is Erick Ontiveros. I live in Poza Rica, a little town in Veracruz, Mex. Im a student of electronics engineer and I agree with you, they dont teach this things at college. Im about to buy the "programing 1 program" at the prelaunch price. So I have a single cuestion for you. Will I get a certificate from tepergy that probes I took this course?
Erick Ontiveros Lara Hello Erick.We're glad you're going to join us! Yes, student get a certificate from TEPERGY upon their request.
Thank you so much.
You're very welcome, Brian!
Very easily understand answer
Happy to hear that, Ranjith! Thanks for your comment!
Thanks, this is helpful
Simple and Nice!
Thank you ❤
You're very welcome!
Nicee i love it. And thankss
Dear sir I need knowledge for vfd Schneider??? possible
great work
Basic video is very useful
Wow super explanation... thank you very much...
You are welcome!
thankuu so much
Nice audio...I felt a motor nearby with my newly bought headset
Model ?
Excellent
Thank you so much!
Thank you....
I have just started a channel based on PLC goods
Wow that's powerful
Glad to hear that! Thank you for sharing.
great keep it up
Why should we use PLC in this scenario bcoz switch on means motor will be ON switch off means motor will off....what is the use of PLC?...No need to use starter panel?
Hi there. This is just a simple example to demonstrate how a PLC work.
I was exactly looking for this comment & reply...wondering why PLC being used for motor ON & OFF. :)
Thanks to uploader for the video.
PLC sends the digital signal to the CPU.
CPU makes calculations to change the digital signal for on and off respectively.
How does the motor understand the digital signal from the CPU?
The input signal is sensed by a digital input card. Periodically (every 50ms for example) the state of the pushbutton is sent to the CPU. The CPU executes some logic, and if appropriate, sets the state of a digital output on a connected digital output card. The digital output is essentially a switch, which completes a circuit to a motor starter or relay, that when energized, causes the pump to start. The I/O cards communicate to the CPU via a backplane or via a communication interface if the I/O card is remote from the CPU rack.
Wow. Thanks
Good video!
Fabulous.
thanks good video!
You are very welcome!
អរគុណបងThank👏
You're very welcome!
thanks you
You are very welcome!
Thank you
You are very welcome!
Sir plz tell me which three languages are used for programming in plc...
Ladder logic, FBD and STL are the programming languages we usually use for programming S7 PLCs.
Is Boolean expression and graphset also use for programming in plc???
would like to know some QUICK dcs and scada
We'll consider your suggestions when creating new videos. Thanks!
what is main difference beckhoff twincat and arduino?
good.
the video was awesome
Thank you!
Nice
Cool nice videos...
So is there analog to digital conversion going on here ?
In the video, from the Input card to the CPU to the output card, the data transactions are all solid-state (digital).
can you tell me this program in Siemens plc language??
can u compare this using relay
Welcom
great
This is basically how I explain people what Arduino does.
Good
Why the should I need plc when I can directly connect motor to the switch..??
You are correct. You wouldn't need the PLC at all. What if you wanted to not start the motor even if the button was pressed if there is an interlock condition, such as when an upstream feed tank is empty? We don't want the motor to start on the pump in this condition. The PLC allows multiple signals to be brought into the logic so that the process is operated safely and under the optimal conditions. This is not always easy to do with strictly field-mounted operators, such as switches or pushbuttons.
@@realpars ohh yeah ,Thanks for your info sir ❤️
Great (y)
nice video fam
🔓
hello guy I would like to see it connected to a motor and it programmed and working.
Wow wow wow, and nothing more, even my 8 year old understood with me
That is a great compliment! Thanks for sharing that with us.
please give me software link
Please check the links bellow to find out more info about different license types of STEP 7:
sie.ag/1HZhfL4 sie.ag/1XVfntY
i learn more until to the last part 9....but...i need to learn more...
Green buttons turn systems on, red buttons turn systems off. I know, you were going for simplified graphics.
i would like to take the program.. can i have a promo code?
Hi there!
Thanks for your comment and great to hear your motivation to start your PLC Programming journey with us!
We currently have the following two subscription packages, of which our yearly package enjoys a 50% discount. Apart from that, we currently don't have any promo codes.
- Monthly subscription package $19.99 a month
- Yearly subscription package $119,- ($9.99 a month) billed once
Hopefully, this answers your question! If you have any other questions, feel free to reach back out or email us at hello@realpars.com
Happy learning!
It is same with the microcontroller
Sir plz explaine in hndi Plc introduction and working
👍
How to build plc project without cpu in pc ??
You can easily build up your project in Step7 environment without any CPUs. After writing your software you can "Simulate" your project using a software named "PLCSIM" which simulates a PLC for you to download your software to that and star simulating your software.
so basically the plc will be the power supply for the motor right ?
Thank you for your product.
Good quality for a 8 year old video
Thank you!
wow
you mean upload it to the cpu, not download it to the cpu
We usually use the word "download" when we want to send the program from the computer to the PLC.