PLC E-Learning Session 1 – Introduction to PLC & PLC Wiring



okay so welcome to the learn PLC in a day session one just wiring the PLC in this session we are going to learn about how to wire a PLC now when we are going to install appeals in any panel or any machine or in any process first we have to wire up that so let's understand that how to how to wire a PLC which wires to be connected with so very quickly let's let's understand the basic components of PLC you know in front of the screen you can see this is a PLC by the company delta electronics and we have some input terminals no these are these are the terminals onto which will be connected the inputs now what are the inputs inputs can be switches it can be sensors it can be limit switch it can be it can be any source of inputs and it can be any sensor then we have the output tablets you can see here these are the output terminals onto which will be connecting the outputs now what outputs and what input can be in any machine depending on the various processes for example suppose you are going in lift now what you do you push a button that button is your input then button else the machine there is the process or test the lift which you know you want to get into so that movement of the left is to the motor that is your output so you understand that that button is the input which will be connected to input terminals and the motor will beginning to the output terminals but what happens inside that that is the program how that controller has been programmed similar way we will program this busy using this program in cable that's the programming cable we have to make a program in the computer then we have to download that into this PLC which will be remain stored in that so that's it's all about programmable logic controller that's what PLC stands for programmable logic controller a controller which can be programmed using various logics logics can be F else or at not that's the logic which we are using about day to day like the similar energy we can program in a PLC now let's see for further component we have rs-485 capitals over here now the stammerer is used to connect this plc to an HMI or any other complication source so that we can communicate what's happening inside a PLC then we have e to a card this is digital to analog card which converts digital data into analog signals now in this case digital data can be banned rip it's these binary bits can be converted into analog voltage which can be further used to drive different analog outputs then we have a 2d card which is analog to digital conversion which converts analog to digital signals now analog signal can be given by some analog sensors now if you're from instrumentation electronics or electrical background so you can understand their to basics control signals which is 0 to 10 volt and 4 to 20 milliampere so there are sensor which gives these control signals so that signals needs to be processed and to process no signal we have to convert that into digital form which makes the processing very easy that's why we can vote analog Sinjin traditional using this car so these are the basic elements you may find in many different companies of PLC so I'll show you another plc that also for companies Siemens mother code is 7 200 seen similarly here we have this is the power ready for voltage VDC which we which will be used to run a PLC then we have input terminals as we have in Delta these are the output terminals then we have this programming cable which is used to program a PLC and then a small battery now this battery is used to store the information to store the program and when there is in case of power failure now another PNC of the company ended badly by two logits 1000 is a code similarly we have input terminals here output terminals here again programming cable to program a PLC then a power of 24 VDC which is used which is used to run a PLC now you can see some integrations here the PLC is on you can see the green light when it is run it will see green it again when it is some having some fault there will be some orange light over here and when there is force input in which we are driving the input we are running the input from inside the software instead of instead of switches then there'd been force light so this is the basic components of what PLC all about okay so this is the software in which we are going to learn about how to wire appears in this software is automation studio by the company farming technologies which is in Canada and the software is being used in every carry me to teach the students how to do the wiring how to do the electrical wiring and how to make how to make a sophisticated circus and how to a start how to simulate that so that after making circuits and the software we implemented them practically so let's take some PLC cards this is my PLC input card it is analog goes to that input terminals which you have seen in that presentation so let's take some power sources and now this PLC I assume is running on 24 voltage so I'll take money for volt and I will take 0 volt now as this is the software this PLC no need to connect some power sources this this will be connected by no internally by the software but we have to provide voltage to drive the inputs so must understand how this input will be run how they will indicate that there is some voltage or there is some physical activity outside this PLC so you can see some common terminal here now I am going to connect this 0 volt to this common like this so my 0 volt has been connected to common now you have to understand that we need to create a potential difference of 24 volt across this input terminals then only this PLC will recognize that there is some input for example if I can make this money for over here and then I'm going to simulate that you will see this is on this is on because this 24 volt and the zero volt this 0 volt is connected internally to this input so we have created a potential difference of 24 volt now let me clear you how to clear this understanding let's take a relay for example I will take a coil that's 1 let's name it all right so let's take another voltage voltage 24 volt this one now this is perrolli this is my electromagnetically what happens when I provide a signal of 24 and 0 across its 2 terminal you will see it is on the similar way these are the internal relays over fields you need to provide any 4 volt potential difference across every element every terminal to make it on so if I take another relay like this let's name it r1 and I connect this with this and this okay let's not connect it initially now you see this relay is getting 1 4 volt potential difference this is on and this is open from one end similar way these all are open from one end they are getting zero volt from here like this relay is getting from here but 24 volt is not provided so when we provide this 24 volt this relay will be on you can see here the similar way if I connect other terminals to 24 volt this will be on you can see here so the concept is we need to maintain a potential difference of 24 Volt across this input and the common now in many PLC instead of 24 volt you may find line and neutral because that depends on the manufacturer whether is providing 24 volt DC volt inputs or you are providing AC volt in some DLC you may find instead of any foreign zero it is written life and neutral so in that case we have to give live over here and one and instead of zero you have to give the neutral so this is this can be in case of some different PLC so we have to check it out on the PLC whether a test in DC voltage driven or AC voltage different so let's remove it out for a second now this was my input card I'm going to connect some input switches here now this is my push button let's take it x0 now I've connected this to my n0 and again I need some power sources let's say 24 volt okay so what happened if I don't connect 0 volt over here nothing gonna happen it's not going to get on because there is no potential difference there is nothing at the common name so we have to connect zero voltage well okay so now I have connected a switch what happened this is a normally push button which is a spring-loaded when I press the switch input will be on when I release it in but will be off so this is an input switch though you may find such kind of switches in your panels in some other machines you may find some green buttons this saw this button is connected in this way that is connected to some inputs and then comments even some 0 volt so similarly let's connect some other switches this is my normally close button as its symbol indicates that it is passing the signal in normal position that is why it is called normally lose because the switch is closed normally when I press this button it will be open and it is a gain spring-loaded when I release this button it will be closed again and this is normally open normally open means when I'm not pressing this pattern the circuit will be open when I press this button it will be closed so these are the different types of switches which we can find in the inputs now let's have a toggle switch let's name it x2 let's connect it to a n2 and then again this these are again normally open toggle switch now this toggle means they are not spring-loaded they are attentive they have retained of position when it is open it is open when I close it it really remain closed so that's the beauty of the switch so I have connected four switches now I hope you have understand that that this this as on because this 24 volt is already across this terminal I mean one this will be on when I press this button and again similarly with these cases so this is by input section how we are getting the inputs from the outer world and how the spears is judging the inputs just by this voltage again where you are going to have potential difference that input will be on so this was about the input card of a PLC or you can say input terminals of a PLC now let's see what happens at the output terminals for that I'm going to have this output card from here you can see like this okay so I'm placing this output car little bit away from that to make you know make that to make the concept pretty easy similarly we have different outputs out 0 1 2 3 4 up to 7 then we have a common now similarly I'm going to connect this 0 volt I can take the wire from here this common now here I will be connecting the output components not these switches but the output components so let's see what we have in output components we have coils and it a display called unlatch last solenoid indicators so let's take an indicator on this indicator is my light so let's name it y 0 this is an indicator light I'm going to connect the one end of this indicator so this out 0 now I have to give 24 volt to this other end again to maintain the potential difference now what happened here is now when assembly that this 24 volt s travel to the one end and another end is not connected to this 0 volt and why because in this case it was already connected here but in this case it is not connected and this will be connected only after we do the programming it won't run when I press this button or when I press this button or this button but how it will run that pens on the program so this is my output not running right now let's have some more out words here let's call it y1 so I have connected two outputs now both are not running because I haven't proved I am the PLC now what does a program do program will link this input section with the output section suppose I want by pressing this button my this full slide should be on I have to make program according to that but if I want to play after pressing this button I want both out who should be on then I again have to change the program I don't have to change the wiring I have to just change the program similarly if I want that by pressing this button push it me on I have to change the program only wiring is one time remember remember these so this is all about the wiring how we have to buy the input section how we have to add the output section we can similarly connect some more inputs so we can getting some more outputs like this so you can see here now have connected six outputs to the output section and few inputs of the intersection now in next session we are going to see how to make a program how to make this output low by using the programming and we are going to see how to do the programming it's it's based on simple logics or and not FL snore timers counter so it's very interesting stay tuned and if you have any doubts finally post below this video you have any doubts I will clear it out so this is all this was all about the wiring

43 Comments

  1. Gavin Walters said:

    Excellent tutorial! Much Appreciated Surely will Subscribe!

    May 22, 2019
    Reply
  2. ganesh kumar said:

    The next video update in 8pin channel relay wiring and differences between relay (-1;+1) outputs

    May 22, 2019
    Reply
  3. Daljeet singh said:

    good explain Sir

    May 22, 2019
    Reply
  4. Sagar Bhogam said:

    Mere pas wpl 2.47 delta softwear he.usme mujhe 3.4.5.motar ka timer seting nahi a raha he

    May 22, 2019
    Reply
  5. Sagar Bhogam said:

    Add a public comment…

    Sagar Bhogam
    mere pas 5 motar he.3 phase. Ke.usmese 2motar pahile start hongi or uske bad door band hoga phir 3motar start hogi or 10sec.time bad
    4motar start hogi oruske bad 5nom. Motar start hogi 5 nom.motar rev.for. 1min.ghumegi obhi 10sec.stop hoke 3&4nom. Motar jitna chlega usmese ada time 5nom.motar rev .for.ghumegi .uske bad time khatam hone ke bad 3. 4. 5. Nom.motar band hongi.
    For shot blasting machin
    Plz send information

    May 22, 2019
    Reply
  6. Rashid Hussain said:

    Plc ka hindi video banaye sir……please. …aap ka video bahut acha tha sir.

    May 22, 2019
    Reply
  7. Roy Autar said:

    Hi sir, great job. Do you have the software for me. Roy

    May 22, 2019
    Reply
  8. Sagar Bhogam said:

    mujhe cominicton cabal chyahiye

    May 22, 2019
    Reply
  9. liem Tchems said:

    hello, i would like to master the control of Vffs and Hffs machine do you think which part of yours lesson can be interested for.me?

    May 22, 2019
    Reply
  10. GOPI P said:

    Sir, can we run a machine by using PLC?

    May 22, 2019
    Reply
  11. TediumGenius said:

    Rajvir, thank you for this video and series!! It is PERFECT for me, who has just enough electrical, and just enough programming, to follow along very easily!!!!!!! Thank you so much!!!!

    May 22, 2019
    Reply
  12. Manish Dubey said:

    Output card didn't worked without program, but input card did🙄🙄🙄please explain…

    May 22, 2019
    Reply
  13. Shubham Dubey said:

    Thank you so much

    May 22, 2019
    Reply
  14. ANAS T M said:

    from where do I get automation studio libraries?

    May 22, 2019
    Reply
  15. MD TOWHIDUR RAHMAN KHA said:

    can you tell me the name of the software

    May 22, 2019
    Reply
  16. PLC DROID said:

    Learn PLC for basic and newbie http://bit.ly/2zJ0Dqt

    May 22, 2019
    Reply
  17. Hadi Ali said:

    Is this a binary system

    May 22, 2019
    Reply
  18. Sarath raj said:

    I appreciate your involvement to give a free tutorial… I request you to give a connection for analog input

    May 22, 2019
    Reply
  19. dshendricks71 said:

    I've worked a few different PLC as an electrician and machine maintenance. I had 2 entire 16 week semester classes on Allen Bradley. When I get to talking about them during a job interview the conversation always seems to head in the "what kind of software such and such". People need to quit with that. Logically they work the same. I'm beginning to think unless you are an actual fulltime programmer software types shouldn't matter. Yea they look different and have different words for things that are the same. They have different ways of addressing, going on but again. Electrically they work the same. Contacts, Coils, inputs, outputs. All are pretty much the same. I'm beginning to realize ehen someone who starts asking about "what kind of software and such might have absolutely no idea how they work.

    May 22, 2019
    Reply
  20. hasan basri said:

    good job.thanks

    May 22, 2019
    Reply
  21. Terry L said:

    It would be awesome if a version with North American English dialect narrative was made. It's understandable once you figure out the subtle but numerous mispronunciations. I have what I call Webster's ears, so this is on me.

    May 22, 2019
    Reply
  22. Ashwinder Singh said:

    very good paji

    May 22, 2019
    Reply
  23. chetan seth said:

    Why do you have a fake accent sir. Pls don't mind just expressing my self .

    May 22, 2019
    Reply
  24. Basant Mandal said:

    How to program

    May 22, 2019
    Reply
  25. praveen kumar said:

    Sir koi apps nahi ha Hindi me learning k liye

    May 22, 2019
    Reply
  26. Huu Nguyen said:

    this is the best, thanks for sharing the knowledge.

    May 22, 2019
    Reply
  27. Yemanebirhan Tadesse said:

    Thanks so much dude!

    May 22, 2019
    Reply
  28. Pawan Dhanda said:

    panel.view 300 to allen Bradley communication configuration wiring pl tell how to communicate

    May 22, 2019
    Reply
  29. Munipp Poojitha said:

    please mention software how to use in pcss

    May 22, 2019
    Reply
  30. Joby George said:

    Very helpful thank u so much

    May 22, 2019
    Reply
  31. ashwin akela said:

    Need ur contact number. Need help for ardino technology…!!

    May 22, 2019
    Reply
  32. Manoj Mahajan said:

    In Allen Bradley, I have seen that positive terminal is supplied to common in output side. But here it is shown differently. Can you explain if you are still active here?

    May 22, 2019
    Reply
  33. PLC Training said:

    Follow me plc training

    May 22, 2019
    Reply
  34. PLC Training said:

    دورات مجانية نضري وعملي على ال plc على قناتي اليوتيوب لليحب يطور نفسه
    https://youtu.be/Ptl5B-DQtKI

    May 22, 2019
    Reply
  35. PLC Training said:

    Please support my channel plc learning vfd realy … etc

    May 22, 2019
    Reply
  36. Zubair Ahmed said:

    I want PLC ladder logic programming.

    May 22, 2019
    Reply
  37. BASHEER ALTAWEEL said:

    Thank you very much . Please ;can you guide me how can I download this simulation program ?

    May 22, 2019
    Reply
  38. Shane Welcher said:

    First off, great video.

    Next I would like to ask you a few questions and would like to know if you could email me?

    My email is [email protected]

    I look forward to hearing from you and think this would be in the best interest for both of us, it is only an email so no worries about wasting time.

    Again, I would love to hear from you.

    Thanks,

    Shane

    May 22, 2019
    Reply
  39. Hassan 4x said:

    Thanks very much. Please Mr I need wiring diagrams for Allen bradly panel .

    May 22, 2019
    Reply
  40. Swarnava Rakshit said:

    You told that, wiring in plc will be done one time only, how things are connected then?? Is it like, evry input is connected to every output?? What and where are the differences in different company plc devices??

    May 22, 2019
    Reply
  41. Srivatsa A.R. said:

    dear sri Rajvir Singh

    just now i watched yr video on PLC WIRING SESSION 1.
    Yr video Is outstanding And WELL planned and executed. i understood what u have explained there. even before yr video i have watched videos on the same subject explained by foreigners who are experts in the field but i could not follow every thing they explained there.
    Yr 1st video on this Is very effective in driving key imp.features that a new comer has to grasp before proceeding for further details on this subject.
    yr way of teaching and video contents arrangement Is praise worthy. looking forward to learn more on the same subject.
    many thanks to you.
    s.vatsa, Bangalore

    May 22, 2019
    Reply
  42. Prince singh said:

    Sir can you help me in getting the software you are using ?

    May 22, 2019
    Reply
  43. prasanta changdar said:

    Thank you

    May 22, 2019
    Reply

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