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.
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.
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.
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.
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 UA-cam channel that can be a good start. We'll try to add new videos more often. Good luck!
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
@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 UA-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.
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?
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?
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.
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.
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.
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!
Want to learn industrial automation? Go here: realpars.com
Want to train your team in industrial automation? Go here: realpars.com/business
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.
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!
thx even after 9 years you helping hopeless students
Thank you so much for your kind words. It’s our mission to support learners like you on your journey. Keep up the great work!
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! :)
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
*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.
basic, simple and easy to understand a plc
Very clear and straight explanation. Thank you!
You're very welcome!
With your easy explanation. I understand thank you realpars.
Thanks a lot for your kind comment, Darine! We're very happy to read that.
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!
Short, simple & beautiful explanation ... Loved it.. 💕
Thank you so much!
Very efficient explanation
I fuvking love this video, short and to the point!!! Excellent video ladd
Glad it helped!
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 UA-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. ☺
i really like it. it's clean and understandable
Happy to hear that, Yasin! Happy learning.
Thanks! Just with this short video, i learned how to program!
That is amazing!
Thanks, it was crisp and clear
Thank you it was so easy explained and it’s helpful
Great to hear!
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.
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.
Precise and clear.
Very easy to understand
Great to hear that!
very easy to remember and to explain someone in short
Thank you, Dheeraj!
Thanks for sharing good presentation
You're very welcome!
now, look like i get what i really wanted for a long time
Very useful 90 seconds.
Thanks
Glad it helped!
Thanks a lot, this was very helpfully.
Great to hear! You are very welcome.
really thankful to you
Very interesting sir, and also clean. i really like it.
+Misbah Khattak You're welcome!
Simple and Nice! Thanks!
Thank អរគុណ
Our pleasure!
@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 UA-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.
I appreciate your explanation thank you
Glad to hear that! You're very welcome.
This video made a sense on me
Glad to hear that!
Thank you very much , you make it easy for me 🙏🏻
Great to hear! You're very welcome.
Great video...explanations clear
Glad it was helpful!
Very easy n very good video
So thanks
Thanks
Nice audio...I felt a motor nearby with my newly bought headset
Model ?
Super explains, thank you !!!
Glad it was helpful! Happy learning!
Very easily understand answer
Happy to hear that, Ranjith! Thanks for your comment!
Basic video is very useful
Wow super explanation... thank you very much...
You are welcome!
Thank you so much.
You're very welcome, Brian!
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 nice and Short movie...
great work
Thanks, this is helpful
Simple and Nice!
thankuu so much
Thank you ❤
You're very welcome!
Dear sir I need knowledge for vfd Schneider??? possible
Thank you....
Nicee i love it. And thankss
Excellent
Thank you so much!
Thank you
You are very welcome!
អរគុណបងThank👏
You're very welcome!
Wow that's powerful
Glad to hear that! Thank you for sharing.
Wow. Thanks
thanks you
You are very welcome!
great keep it up
the video was awesome
Thank you!
thanks good video!
You are very welcome!
I have just started a channel based on PLC goods
Welcom
Good video!
This is basically how I explain people what Arduino does.
Fabulous.
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.
good.
Nice
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.
Cool nice videos...
great
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.
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???
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.
Great (y)
can u compare this using relay
would like to know some QUICK dcs and scada
We'll consider your suggestions when creating new videos. Thanks!
Good
what is main difference beckhoff twincat and arduino?
🔓
Good quality for a 8 year old video
Thank you!
Green buttons turn systems on, red buttons turn systems off. I know, you were going for simplified graphics.
nice video fam
can you tell me this program in Siemens plc language??
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).
It is same with the microcontroller
i learn more until to the last part 9....but...i need to learn more...
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 ❤️
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
Sir plz explaine in hndi Plc introduction and working
hello guy I would like to see it connected to a motor and it programmed 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.
wow
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!
👍