This is an updated version of Lecture 01 Introduction to Relays and Industrial Control, a PLC Training Tutorial. It is part one of a two part lecture. PLC Programming. Correction...Joseph Henry invented the relay...
Sir, I am 20 years old. I did robotics in high school with some really simple programming and it got me in the room with a engineering firm that then proceeded to send me out into the field to replace another programmer who was being difficult to work with. I had no prior knowledge of PLC’s but after watching your videos I have acquired the requisite knowledge to preform well in my job and secure me the CTO of a company and open whole new paths in my life. I could not think you enough for how well you made this video. You didn’t assume any prior knowledge and it was easy for me to pick up. If you’re ever in dallas Texas I’d like to get you lunch!!!
As an old timer, I decided to learn about PLC' s to be more relevant in the job market. With very little electrical knowledge, I wasted a lot of time and money trying to get going. Fortunately, I found 'plcprofessor'. I am actually understanding and learning. Thanks a lot Pro.
Hey Josh, I know you posted your comment a few years back, but was just wondering if you ever ended up working with plcs I'm thinking about getting into them myself, currently an electrician (commercial)
Loving it! At the age of 50 Ive decided to take the bull by the horns and learn about PLC's I'm enjoying your teaching sequence of step by step, without assuming any prior knowledge. Thanks heaps.
Same here... 46 pushing 50. Building the pc trainer and a light finally clicked on and understanding everything. Not hard once you start understanding everything.
Ben - Myself as well. feels like Iv'e gone right back to trade school. lol However the beginning illustration here seems backwards? The control is in the line voltage section, and the only reason I see the need for a relay, is just for a 'Red light' ?
I am just 22 years old girl, who just started learning PLC Basic. When i first found this video, I was so happy that finally someone who can show me the real basic of PLC. I can't thank you enough. Thank you so much for this video, and also hoping you to share more education video about Programmable Logic controller more.
These videos are going to really really help me attempt a transition in my career from serving tables at a dead end job to potentially making real money in a real world industry. thank you very much Prof.
Did I share this already? I'm really impressed about this. I've always been a computer guy. Straight to programming. All the "before" stuff I understood already in a general way (0's and 1's are basically telegraph key presses) but the way he goes through this slowly and carefully and thoroughly is really amazing. He filled in ALL sorts of little gaps in my knowledge from an entirely different perspective than I'm used to. If you do ANY programming, watch this stuff. Go through it. You'll walk away very impressed the stuff your computer/phone/tablet is doing... because THIS is the stuff it comes from. This. Expect a headache; the language is not what you're used to if you never did electrical engineering/controls stuff. It feels like stepping inside of my computer and walking around the circuits. What impresses me is that I never realized the technical difficulties that they must've gone through for the miniturization of this stuff to end up in the form that we use today. Consider how these circuits were reduced to the level of electrons and electron holes.. and now we're trying to go further... it's sinking in.
Remember your goals. Make promises relevant to them, but be honest in every instance. Admit your mistakes or you will stay a slave to them. Then keep your word in everything you do. A man is worth no more than his word.
You dont wasted, maybe you are in a bad financial position, but computer games have a lot of things good. You only need to know what was good, and learn from it, then apply it on PLC. Especialy the puzzle games haha
This excellent. Threw me a few curve balls. It's been a while since I have worked on these. That was way before PLC came into play. I'll be watching much more. Nothing like education even at my age.
Yay for +25% speed for those of us with ADHD. Nice lecture. Precise language makes it less confusing. Glad to see a video on the internet using electron flow current.
This video was very well produced. He's much better than most of the lecturers I had at uni. Everything is explained properly and details are thrown here and there that illuminate concepts. I have an engineering degree and found that I learnt much, much more just from this video than my typical lectures. Thanks mate. Appreciated.
This is a great review for me. I am an electronics tech but took a PLC class in college back 15 years ago. Just recently bought a A&B SLC 500 setup cheap and will be re familiarizing myself with programming just for little projects. Thanks for these great refresher videos, you explain things very clearly.
Synthpro I notice you recently bought a A&B SLC 500. Me too, and I would like to discuss more on the situation with you. Inbox me at montoit49@gmail.com. thanks.
It took me quite some time and a very patient co-worker explaining and then re-explaining motor starters, auxiliary contacts, 3-wire holding circuits, etc. But once you 'get' the basics-everything else is just an add on to that basic start/stop circuit. I learned to not be intimidated at a control panel full of wires but instead to patiently trace wires and figure out what's going on. It feels great when everything 'clicks'. Great video!
plcprofessor, Again, great job. I am starting your series on PLC training. I do have an undertstanding of PLC devices and the A-B platforms. My main purpose to watching your training is to evaluate these training sessions to be used by those that we are training to work with our Automation and SCADA systems. You do have a great process of training. Your details are most valuable. Thank you again for all that you have done and do. You are a great help to all who will spend the time to watch. AOK
OMG....shame on me,i'v been graduated for a while and i never understood all this stuff concept~your lecture is really clear and better than all my college's teacher...i am really grateful to watch your excellent tutorial video,thanks a lot.
The first electrical/electronics class I ever had, my "professor" sat down and explained to us how he hadn't done anything related to electricity or engineering in over 30 years and that he had gone straight back to business school to become a lawyer after he had worked a year in an engineering field, so he was going to be learning again by teaching us. I can't even compare how much more total and useful this one hour video is compared to years of sh*t instructors while I was still at school.
hello plcprofessor i just started to watch your kind hearted videos today about introduction of PLCs and this time im on part 2. this is wonderful gift for me who has no plc training or education. i hope you will upload more training videos.thank you very much
Thanks God for sharing your knowledge going about to PLC, it is well explain, it is very interesting and a good help for those who cannot go to school like me to learn more on PLC. Thanks
This is excellent. I have an interview coming up for a pharma company that require an electro mech tech and i haven't a clue what to be studying for the interview. It mentioned PLC's in the job spec so hopefully i'll be asked about this sort of stuff. Did it in college but that was 20 odd years ago. This is a great refresher!!! Thanks :)
I'm a junior in high school taking a college class and in a program which is focused heavily upon SCADA and this video really helped with my current information of plc' s thanks!
Great tutorial. As a journeyman electrician on refineries- i came across to what the operators do, but rarely put any thought deeper than running wires from Instruments to J-boxes and so further to DSL. Thanks a lot and Keep it up!
PLC professor inspired me to make more video when i first came to america last 2015 ive watch all his video and i found a good salary job as maintenance now i will help my co maintenance by making more video also thanks a lot PLC Professor
The pleasure is mine. I am currently completing a new training manual based on the MicroLogix1400 with all new videos. Again, thanks for the encouragement. All of my knowledge and wisdom comes from the Father.
It's a great video. I've been a j.w for 25yrs and refreshing my memory with the basics was fun. Thank you for a great tutorial. Your efforts are superhuman, considering some of the subhuman responses.
Thanks for helping me to learn PLC from basics as I have no idea about PLC other than its basic functions.Your teaching methodology helps me to remain concentrated throughout the video.Keep spreading your knowledge.God bless you.
I'm starting to learn more about automation that uses PLCs on Beckhoff servo motors and your introduction about this subject was simply amazing! The explanation of the relay's functionality was so clear to understand that the rest of the video and its subtle transition to FALSE/TRUE logic went quite smoothly to follow. Even without the deep breathes pauses. Many thanks for this video and I'm quite glad to see that you continue to produce videos nowdays, which is why I just subscribbed to your channel.
Thank you for this series. I intend to get into the maintenance department at the factory I work at, knowing PLCs is gonna give me a definite leg up on the interview.
At 48:36, you said when the coil is de-energized, 1CR-2 is normally open. Did you mean normally closed? This is one of the best videos I've ever seen for starting at the very beginning of PLC understanding. Diagrams are VERY helpful.
excellent presentation. For someone who needs this level of instruction, there is also a need at the elementary level for instructions on how to get to the next lesson
I conclude that some viewers of this first part , introductory video in a series, may not retain the information delivered. The professor fully explains,in english,at the beginning of this presentation, that this first session is "BASIC" circuitry. As far as logic programs go, once the viewer hears that, his cerebral circuitry should designate a physical response, wherin his hand will move the cursor,via mouse or other control, to "click on" part two, following the same input, satisfied/ not satisfied should then be triggering the same type response, part 3 ,4etc.. This cerebral circuit should be re-examined for fault from other interface devices such as human emotion, which triggers deafness brought on by a superior " I know that" attitude. Professor; You may want to close caption this for those individuals, hoping that blindness is not an end response as well. Well done tutorial plcprofessor !
This is by far my favorite video to have people watch that are trying to understand industrial control electronics. I know its about PLCs but the information in here is so relevant since its the building blocks of understanding diagrams. Great content right here, I watched this myself a number of times as I went through the journey of learning about controls.
You're awesome. Your explanation helped me during my on the job training at subaru plant. You're a lot more clearer than my trainers. Thank you. Please make more videos
Hate to jump the gun here but in college we used RS Logix 5000 and using ladder logic, structured text, and sequential function chart(function block diagram didnt have all instructions proving to be insufficient). Okay so we used the first 3 languages only, to create fuzzy logic and finite state machine programs. Was pretty neat and we watched ur vids all the time in class. Electronics engineering technician here and soon to go for my B.A. to work in town at a local factory. I'll find my powerpoint and share it with everybody here soon.
Great lecture Sir !!! Your tutorial is very clear and comprehensive i appreciate the tremendous efforts you produce to make explanations easier!!! Thanks a lot!
Thank you professor! I've been looking for a real good online course for learning PLC, and honestly this is the best a found and I've been looking a lot! Really really good.
The section around the 50 minute mark was very hard for me to understand. But once I did I finally got to reassociate terminology that I knew good and well were not in the right order. I love the 3 pronged attack he takes to teaching
Been a commercial and industrial electrician for 17 years. We learn what we need for our job sometimes and leave much to be learned as we become comfortable. I've been trying to brush up and learn what I am lacking. You sir are a great teacher. Hope your teaching professionally somewhere.
