This channel contains videos that cover the topics of, but not limited to: Programmable Logic Controllers (PLC's), Programmable Automation Controllers (PAC's), Process Control, Instrumentation, Industrial Control Systems, Sensors, Programming, Arduino micro processors, some model building and much, much more. The video content is intended to teach those just starting out in a technical career, or those who have been in the field and need a refresher on common, but possibly difficult topics.
I was blessed with a 45-year career in electronics, industrial automation and control and teaching, all of which I have a passion for and therefore going to work was fun because I made a living doing my favorite hobbies. I retired in 2019 and have started building models again. Some of those videos are on this channel; however, if you're interested in the model building projects check out my new channel, skipsmessyworkbench www.youtube.com/@skipsmessyworkbench
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how is Vo so small in the 3 wire circuit..you say they cancel out but exactly what cancels out?
The whole thing is basic ohms law. As long as the lead resistance of each lead is the same, the voltage drops across all the resistors including the RTD is equal and therefore the voltage drop that would be across the lead resistance is included in the calculations and the voltage drop that occurs across the lead resistance is canceled out. If the resistance of each lead of the RTD is different, the meter will read the voltage drop difference. Again, it is basic ohms law. Redraw the circuit paying attention to where the meter is placed in the circuit. This website might be helpful to you: www.electronicshub.org/wheatstone-bridge/
Terima kasih dari Indonesia, penjelasan nya sangat membatu 🙏🙏🙏
Kembali. Saya harap terjemahan dari bahasa Inggris bahasa Indonesia ini akurat. Thank You!
So, you ARE aware that LibreOffice has the standard envelope creation procedure in the menu INSERT / ENVELOPE, after setting the page size, right ?
Of course I am! Apparently you didn't watch the video where I tell the viewers about it. The LibreOffice envelope function does not work properly for all printers. My printer can only print envelopes in portrait mode and in the center of the printer. Even when setting the options in the LibreOffice "Insert - Envelope" dialog, the envelope will only print landscape. This is a bug in their software and I'm not the only one experiencing this bug. If you read back through the comments you will find that there a others having the same issues I was having. My method is work around for this bug.
video good, info good, music bad.
👍
It didn't work with my printer either! Thanks for the workaround.
You're welcome. I'm glad it helped.
This works great for me as I have fought this problem for a long time...Thank You So Much !!
Your very welcome. I'm glad it helped.
Good information on printing envelopes with Libre Office. Nice workarounds for printers that can't do envelopes like Libre wants them. A little bit slow getting started. The printing info doesn't happen until about 6 minutes in! But, worth the wait.
Thanks!
There is a new thing out called an Xacto knife.
If you are referring to my complaining about the amount of flash on this kit trust me, everyone who has ever built this kit has complained about it. All kits have some flash; however, this AMT kit was almost all flash. Who wants to spend more time cleaning flash than building the model. It's a nice kit when built, but we all hope that AMT will get some new molds for the next release.
@@jtodora be a modeler .Not a Karen.
Very nice job, looks great.
Thank you very much. If you haven't seen the link, I have another KZread channel just for my builds. It's www.youtube.com/@skipsmessyworkbench. I also have a photo journal website at: skipsmessyworkbench.com I'm currently working on the Back to the Future DeLorean. Thanks again for watching.
Kindly provide me the pdf file plz
PDF of what and where shall I send it?
your tutorial videos are the most useful I found ever. could you tell me how to find your all videos link.
Thank you for your very kind words. I'm not sure what you mean by "all videos link". If you're on my KZread Channel @jtodora, you should have everything that's available. I did these video's several years ago so I don't remember a lot about them. I did them for my students when I was teaching Industrial Controls at the local Community College, so if I referenced Blackboard, Blackboard was the Learning Management System (LMS) my students used. However, any video's I might have referenced are on my KZread channel. Anything else that I might have referenced in Blackboard is no longer available since I know longer have access to the Blackboard LMS. Please tell me what you think is missing?
Thanks
You're welcome. I hope it helped.
Thanks
You're welcome. I hope it helped.
Great job, the truck looks really good.
Thanks!!! If you're interested in the models, I have another channel, @skipsmessyworkbench. Check it out if you want. Thanks again!!! And thanks for watching.
Such a great video with real world examples. Good job, I really enjoyed it
Thanks. Glad you enjoyed it. I hope it helped.
Nice build. Like the weathering that you did.
Thanks and thanks for watching. If you're interested in the model building part of my channel I've moved my builds to a new channel. Please check it out if you'd like. www.youtube.com/@skipsmessyworkbench I'll be keeping the technical stuff on @jtodora. Thanks again.
What’s does discreet instrument mean
Thanks for watching. A discrete instrument is an instrument that is detached from other instruments in the process. As an example, a discrete instrument could be monitoring the pressure in a vessel. The discrete instrument, a pressure transducer/transmitter, sends the pressure reading to a shared control instrument that then displays the pressure. In other words, it is a stand alone instrument that has to send it's data someplace to be read. I hope that helps. Also...here is a weblink that might be helpful: eng.libretexts.org/Bookshelves/Industrial_and_Systems_Engineering/Book%3A_Chemical_Process_Dynamics_and_Controls_(Woolf)/04%3A_Piping_and_Instrumentation_Diagrams/4.02%3A_Piping_and_Instrumentation_Diagram_Standard_Notation
So the undefined signal means that the signal type is unknown ??
Thanks for watching. An undefined signal is exactly that, a signal that does not have a symbol in the standard ISA library of signals. Therefore, if you have a process that has a signal that is unique and does not have a defined symbol, use the undefined signal and reference what type of signal it is in the key on the drawing. I hope that helps.
💔 pr໐๓໐Ş๓
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I was enjoying you builds and had subbed. But I got bombarded by electronics videos😣 Good luck with your builds,I'll try to catch them👍😎.Thanks for showing and best wishes from jolly old England 👍😎Pete 🤓
Yes...I do both model building and electronics. That's why I named my channel Technology and Stuff. If you want to see just the model building please check out my other KZread Channel: skipsmessyworkbench. That channel is strictly models builds. Thanks.
@@jtodora ok,I'll look for it👍thanks for letting me know👍😎Pete 🤓
I like your colour scheme and interior👍. I'd use the flockiing through a tea strainer, this will break the clumps👍. It was interesting to hear what you were saying throughout the video. I'm glad you enjoyed and learnt by building this kit. Best wishes from jolly old England 👍😎Pete 🤓
Thanks. I didn't have a tea strainer when I did it, but I do now. So...the next time I'll use that. I sure did learn a lot. Cheers!
Just found your channel.ive watched the build vid and really like what you've done with this model. You have a new sub👍and best wishes from jolly old England 👍😎Pete 🤓
Thanks for the sub!
👍👍👍👍
Enjoyed!!!
👍👍
I need to see more notifications
Sorry, but I can't make people post comments. Also, the study of valves is HUGE. Way too much to post in comment area. Please check out the International Society of Automation (ISA) at isa.org They have lots of information on all types of process control topics. There is a fee to most of their materials; however, they literally wrote the book instrumentation and process control.
How would you know what valve to used at what place
It all depends upon the application, the type of material that is is being piped, the amount of flow, pressure, etc.
Yes, sometimes..... But I think it will work out!
I hope you're right. I'm going to try getting rid of the orange peel that occurred after repainting the body.
@@jtodora Yea, and if not just make it some sort of Rat Rod.
I thought of that, but coming back into the hobby I'm trying to hone my skills, so...if the orange doesn't get peeled, I think I'll give it a bath in the purple pond and start from scratch.
@@jtodora Yea, I understand that. And that is ok too because it is all a learning process.
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Thanks for the thumbs up Tim!
Nice presentation
Thank you. I hope it helped.
Nice!!!!!!!!!
Thanks Tim!! Your blanket method words great!!
@@jtodora Cool!!!!!!!!!!!!!!!
Thank you for this tutorial. I'm just getting started with a Micrologix 850.
Glad it was helpful! I others on my channel if you're interested.
Nice update!
Thanks!
nice update
Thanks
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Reply
nice update
Thanks
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Thanks
Cool, should be a great build!!
I've been working on it for a while. Nothing fit well so far. I'm not complaining, it's actually a good kit for someone like me returning to the hobby after 50+ years. You know what they say...if you want to learn how to swim, get thrown into the deep end. :-{D I'm going to use your blanket method on the bench seat and mentioned your site in one of the video. I can't remember which one. Thanks!!!
@@jtodora 👍
Cool, that's a great kit!!!!!!!!!!!!!!
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Thank you for your valuable video. I have a question and that is when we use ccw and when we use RSLogix while both of them have the ability to write and emulate the project?
CCW is used to program the Rockwell 800 series PLC's, the 800 series HMI's, the 800 series safety PLC's and the Rockwell VFD's. RSLogix is used for the Rockwell 500 series and the micrologix series and does not directly do HMI's or VFD's. Studio 5000 is for the ControlLogix processors. So...it depends on what processor is being used.
@@jtodora Thank you for your answer. Is the free version of CCW capable to do all these as well? (HMI and VFD)
@@farshadbabak9183 Yes...the free version can do everything. Here is the information from the Rockwell Automation Website: Connected Components Workbench™ Standard Edition software: common, easy-to-use configuration and programming tool for a Rockwell Automation® Micro Control system. Includes demo version of Micro800™ Simulator and requires no activation. Standard technical support is included. Download the free Standard Edition Connected Components Workbench™ Developer Edition software: Standard plus additional features including full version of Micro800™ Simulator and Archive Manager, as well as extensive Micro800™ controller programming capabilities for an enhanced user experience. Requires activation. Standard technical support is included with an option for after hours 24x7 support. commerce.rockwellautomation.com/rockwell/en/USD/p/9328C-CCW/bundleBrand Note from me about the simulator: The simulator in the standard edition will only run for 10-minutes and then it will switch to program mode. You will then have to place it back in run mode again. Therefore, if you have a large program that you want to run in simulation, it can only be run for 10-minutes at a time.
Subscribing to the new channel.
I like your attention to detail. This is going to be a good build. Welcome back into modeling. I subscribed. 👍
Thanks and welcome
Great video. Thanks for a very good explanation.
Glad it was helpful!
Thank you very much! That was quite handy :)
Thanks. I'm glad it helped.
I hate to be the one to tell you, but ALL of your calculations will be wrong UNLESS you measure the open circuit voltage that your Simpson meter, or any other analog meter, puts out. You can do this easily enough with a DMM connected to the plus and minus leads of the Simpson meter and measure the voltage on the DMM. You assumed the open circuit voltage on the Simpson meter was 1.5 volts. Depending on the amount of charge in the battery, it could range quite a bit differently than 1.5 volts. Your system ONLY works when you have an accurate voltage measurement on the Simpson meter. You should NEVER assume circuit parameters.
Thank you for responding; however, you're going to have to take this up with the Simpson engineer who published the article I used as a reference when creating this video.
@@jtodora Yesterday, I performed the tests using a very accurate resistor substitution box and measuring the series current from Simpson meter (which had an open circuit voltage of 1.612 volts---NOT the 1.5 volts used by the author in his equations), through a DMM measuring current, and through the substitution box to ground. This series circuit worked well to measure the current flow through the resistor box produced by the Simpson meter and measured by the DMM. The reason you need to measure the actual open circuit voltage on the Rx1, RX100, and Rx10,000 is because it will likely be different than the author's assumed 1.5 volts. The Rx1 and Rx100 open circuit voltage will be the same (in my case 1.612 volts because they are both powered by the D cell battery, while the Rx10,000 range is powered by the 9 volt battery. I think the author wanted to approximate to 1.5 volts for the %x1 and Rx100 settings because he wanted to make things simpler. But it's not difficult to measure the open circuit voltage on an analog meter. My results using the Simpson 260 series 6 meter were remarkably accurate. I used the equations you showed and found that my Simpson measured within 98.2% - 99.7% of the resistor substitution box values on the Rx10,000 scale. And on the Rx1 and Rx100 scales it measured slightly less accurate, but still within acceptable values. I had a fun time doing this experiment testing how accurate my Simpson 260 series 6 was. I thank you for giving this information. I did not use the degrees of arc calculations that you provided, just the percentage calculation because I have and accurate 1% resistor substitution box.
I love that you had the imitative to perform the exercise you described above. Congratulations!! Over the years, having worked many years in metrology, I found that the Simpson 260's and 270's are consistently very accurate. I am very aware that the voltage used in the video to perform the calculations is the nominal voltage. The video was intended to teach first semester students how to calculate meter tolerance and was a bonus research question presented to them. (You pass with flying colors). Simpson is one of the few companies that specify the ohms scale accuracy in degrees of arc. This is done primarily because the scale is logarithmic. The concept that I was presenting was how to determine reading tolerance on a logarithmic scale where the upper and lower limits will not be symmetrical. Therefore, to demonstrate how to perform the tolerance calculations, the nominal battery voltage was used. By the way...I love your KZread handle. Do you know how to use a slide rule? When I was in school, that's all we had. When calculators came out, we used to have competitions to see how many decimal places we could accurately read from the slide rule and compare it to the calculator (three decimal places on a really good slide rule). It might be hard to imagine, but we sent men to the moon and brought them home using slide rules. Good job my friend! 👍👌
@@jtodora Thank you for your kind words. I must say that I really enjoyed testing the accuracy of the Simpson 260 meter. And as to your question about slide rules, an emphatic YES, I use them regularly and enjoy them immensely. I am also a collector. One of my favorites is the K&E 4081-3 which is very accurate and easy to read the scales. I solve problems on the slide rule that most people have to use a scientific calculator for. I know how to use every scale and take pleasure in the calculation process because, unlike calculators, using the slide rule forces you to think more about the problem you're trying to solve. It's you and the slide rule, working together like a team, to find the solution. I used to compete with my brother who is very good on the slide rule and I would win half the time. Slide rule competition is really FUN! Our competitions were to see who was more accurate. We checked our accuracy using a calculator. My overall accuracy is between 99.3 to 99.9%. So I understand why you say we used slide rules to go to the moon and back. Man has designed so many things over the years using slide rules. And unlike calculators, they don't need batteries and can't be EMP'd. The Slide Rules!
thanks to you, it's very useful.❤
Glad it was helpful!
Thanks a lot i couldnt even find any info about this subject in my own language and with this video i learnt a lot , its really helpful for engineering students all of the worlds.
Glad it was helpful! Good luck in your career.
Thank you for the detailed explanation about these sensors. I'm currently using a capacitive sensor for my school project to detect Plastic PET Bottles and it is only detecting the water residue inside the bottles meaning if the bottles are dried the sensors won't be triggered. I understand that PET Bottles have a dielectric constant of about 3 to 4, but what I don't understand is why isn't it triggering the sensor ? Is a DK value of 3 too little for the sensor to detect? Or is it because I'm using a cheap and generic capacitive sensor? This is the link to my sensor : synacorp.my/v3/en/proximity-sensors/854-m30-0-18mm-capacitive-proximity-sensor-npn-no-6-36vdc-ljc30a3-h-z-bx.html. I've tried tuning the sensor but it still doesn't work with PET Bottles, I've onced tuned it until it is constantly on ( Detecting the Dielectric of Vaccum???? ) but tuned it a little bit back until it lights off, but it still doesn't detect my PET Bottles. I've appreciate it if anyone can help! !
If you are trying to sense that a clear plastic bottle, with that low of a dielectric constant is present and empty, you could be in for a difficult task when using a capacitive sensor. There are a lot of consideration to take into account with capacitive sensors. Most of the applications I'm familiar with are using a capacitance sensor to know if there is material [in] the bottle and if the bottle is not sensed it is rejected as being empty. Capacitive sensors become less sensitive as the dielectric constant gets lower. If the bottle actually has a DK of 3 to 4, the sensor will not be very sensitive to sensing [just] the bottle and it will not take a lot of foreign material in the bottle to trip the sensor. I can only assume this; however, when there are two materials involved, such as in your case water and plastic, the sensor will always see the material with the highest dielectric constant. In your case the water has the higher of the two. (Water has a dielectric constant of approximately 80.4 at 20-degrees C). The higher the dielectric constant of a material, the more sensitive the sensor will be to sensing it. Here is a link to Pepperl+Fuchs that might supply a little information: blog.pepperl-fuchs.us/blog/bid/306393/The-Basics-Capacitive-Sensors-and-Dielectric-Constants Have you, or can you adjust the distance between the bottle and the sensor? You might have to bring the sensor very close to the bottle to sense it, maybe as close as 1mm? At that distance, I'm almost positive there will be a lot of false sensing. Also, are there any places on the bottle that are thicker, like a cap or the bottom (think of a Coke bottle). If so, you can try moving the sensor up or down along the bottle to where the material might be thicker. This won't change the DK of the plastic; however, you might get lucky with more mass. Banner Engineering makes a photo electric sensor that can sense clear plastic based on the amount of UV being emitted from the plastic when light strikes it. You will need to know what type of plastic is being used. These sensors might be outside of your budget. I don't know if this is possible, but some manufactures literally place registration marks on product just for the purpose of sensing. That could also be a possibility if a mark could be placed on the bottle? Unfortunately, this cannot always be done. Without actually seeing the bottle and where the sensor is located, it's hard for me to give any other suggestions except that a capacitive sensor might not be the best option for your sensing need. Have you consider using a mechanical limit switch? There are many very tiny and very sensitive mechanical actuators available. Again...without physically seeing your application to make a judgment, you might have to get very creative. Good luck my friend, and thank you for reaching out.
@@jtodora Thank You so much, I really appreciate the details ! You have really cleared up the air for me. But there is this one video that is still puzzling me. That is this video demonstrating capacitive sensors, at 1:40 it shows that capacitive sensors can detect plastic out of their factory default settings, so the questions still remains. Is it because my sensor is cheap and generic ? Cause it seems to work fine in the video by tuning the sensitivity ? ! I really appreciate your help sir. Can I have your email ? (If you dont mind)
kzread.info/dash/bejne/pYOl05eaXdCagdI.html&ab_channel=AutomationDirect.com
I assume you're talking about the Automation Direct video on capacitive sensors that you supplied a link to? What the video is not telling you is what kind of polymer the plastic container is made from; it can matter; however, you said you know the DK of your PET bottle. Does the sensor you have, have a compensation adjust? The specification sheet link for the sensor you have does not say whether it has a compensation adjustment. I assume it does, I've never seen a cap. sensor that did not. When I was teaching at the Community College, I was using an Automation Direct CM1--AP-2H with a Polyethylaneterephthalate (PETE) container that has a DK of 3.2. I was able to adjust the sensor exactly like the Automation Direct video shows. The sensor was physically mounted approx. 2mm from the container. My students would then be given different materials and had to adjust the sensor to not see the container and only see the material being added. The material(s) used had a DK greater than 3.2. I would then have them add a material that had a DK of 2.1 and adjust the sensor to see the material; however, then when the vessel was empty, the sensor would still sense just the vessel because the vessel DK was greater than 2.1. Remember, the sensor will see the higher DK. So...If you everything wired and mounted correctly and the sensor cannot be adjusted to see the plastic PET bottle alone, it could be you got a bad sensor, right out of the box. It's been known to happen. Please remember that if there is anything in the bottle that has a higher DK than the bottle, the sensor will see it and the bottle. My email address is on my channel: [email protected]
@@jtodora Thank you so much, Sir. Appreciate the help and Keep up the good work !! Will be needing your videos more frequently in the near future. Best of luck ! - Bernard