Shadowing Practice: Going Online with a PLC, Uploading and Downloading Code! - Learn English Speaking with Video
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Hello and welcome back to LeMaster Tech.
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In today's video we'll be continuing our PLC programming educational series on the concepts of going online with a PLC
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and we will then cover uploading and downloading, how to do it and what it means.
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So as with this entire series I am using the Siemens PLC platform.
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I'm using TIA Portal or Totally Integrated Automation Portal from Siemens to program my PLCs
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but the concepts that we talk about in the latter schematic diagram code that
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is going to be pretty universal to any PLC platform.
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If you have specific questions about your platform, I've seen most of them, feel free to drop them in the comments below.
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So as I mentioned in the beginning of the video, today we're going to be talking about going online with a PLC, what that means, the various different things that it means,
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and the difference between downloading to a PLC, uploading from a PLC, and then going online without doing either of those
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was online with my PLC
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and I'm going to make a brand new project with you right here and I'm going to call it tutorial online.
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and I'm going to create that project with you.
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I'm gonna save the current project because that'll close out but That doesn't matter.
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You could be connecting to a PLC for the first time right now and you have nothing online.
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Now Siemens actually has a really nice feature.
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Some other platforms do have it in a way.
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I believe Studio 5000 by Alan Bradley, as well as the Bekoff TwinCat platform, all have ways to detect a PLC that you're connected to.
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So in terms of my computer,
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I know it's physically Don't worry about the specifics of what I just said.
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The really cool thing about TIA Portal is it actually gives you a way to browse available devices.
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But even if it didn't, Rockwell has RS links.
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TwinCat has the like router, ADS router configuration tool, Bekoff does.
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And then every other PLC platform that I've worked on, Mitsubishi, Omron, they have some way to basically enter an IP address and discover a PLC there.
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serial cable and use serial like RS -232 or RS -485, but we're gonna assume you have a PLC that you can access via Ethernet.
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Let's take a look at how we can go online with this PLC without even having a backup of the program.
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I will say this all gets a lot easier to go online with a device
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if you do have a backup of the PLC program, but a lot of times, assuming it's not super locked down with passwords and restrictions, you can actually just get a lot of information about the PLC.
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PLC right off the PLC.
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So in the top I'm going to go to online
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and almost every PLC IDE has some version of go online menu
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and we can upload the device as a new station hardware and software.
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We point at our ethernet adapter and we hit start search
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and it actually is just browsing its ethernet connections for any discoverable device on the same VLAN or virtual network
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420 69 169 nice we're gonna hit upload and see
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if it works now if this was a system you got from a vendor
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or a system that's been in a factory forever and you just inherited the role as a person responsible for it.
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There may be usernames, passwords, credentials that you have to enter there to be able to upload it.
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But honestly, most PLC programmers don't prefer to do it that way.
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So there's a decent chance you'll be able to upload any PLC that you connect to just as a new device.
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And that's pretty cool because now we have the program blocks which show the code for it.
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So I can go to main and I can see, oh, there's a routine called increment running on this PLC.
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if I look at what my PLC is doing, the digital output lights are incrementing one at a time on the front of the PLC, which tells me I should look at this routine increment.
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And so you notice this button at the top of Tia Portal says go online now
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because there's a PLC with an IP address added to our device.
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So if I hit go online,
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Tia Portal specifically has a few different color styles from TwinCat and Omron and Mitsubishi,
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but generally speaking every PLC platform has some way of going online, some indication that you've successfully gone online,
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and then some tool in the case of Siemens it's these glasses with a little play button for live monitoring.
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And live monitoring the code is really useful because it shows you what's going on.
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I can look at this little routine
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that's just counting 0 to 9 and again this correlates exactly to what I'm seeing on the PLC.
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So generally speaking when you go online with a PLC you don't always have to upload
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or download but it's more of a live viewing environment.
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If you have a backup of the PLC so now
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that I have this code I'm gonna go ahead and save it
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and if I close Tia portal out completely and then reopen it and then
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that stored all that information about our PLC and the code
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that we pulled off of the PLC by uploading
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and I'm able to just go in here and and immediately hit the go online button.
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If I didn't have the go online button,
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you can usually use extended go online or older versions of Allen Bradley PLCs had who active go online,
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where you can check for available IP addresses and devices.
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And you can see all the devices available to you that you're connected to through a variety of drivers, whether it's serial, ethernet, profinet, whatever.
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And then you can check for your device, see if it's connected, that way as well.
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Okay, and we can once again see that we're online, we can get back into the increment code and we can live monitor it.
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And again, the thing to speed recap what we've done
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so far is uploading generally refers to pulling the code off of the controller into a file on your computer
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that you can read.
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Going online is generally just thought of as live connecting to the device for monitoring of status.
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So there's going online and there's uploading.
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Now let's talk about downloading
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and downloading bold letters is the dangerous thing to be very careful about doing
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because downloading is what you do when you change the code on the controller.
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at a time it's just going to turn half my outputs on
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and then the other half of the outputs on like a flip -flop circuit very similar to increment
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but all I have to do to make
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that happen is I have to go to main
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and then I need to say well main
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which is sort of my like master routine
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that calls all the sub functions now I want main to call flip -flop
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and not increment and you can see that even though shows unaccepted changes in a different way.
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So does every platform.
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And now if I want to download to the controller, I can hit the down arrow, I can go to online and I can hit the download to device button.
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You have to be very careful when you do downloads because
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Normally a PLC is not in a nice clean bench setup like I have it here.
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It's usually in an industrial control cabinet and it's usually controlling real world outputs.
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And you're immediately changing how they will react.
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So most of the time before you download to a controller, you want to power that device into a completely safe and idle state.
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But what you can see is now that it's gone solid green again.
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the two count variables I have set up.
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So the flip flop is working really well.
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Now that I've gotten rid of increment, if I turn this one on, you'll see that it's all grayed out because nothing's calling it.
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It's not a live function anymore.
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Okay, and then you also don't have to do downloads exactly the way I did where you do them online, you can go fully offline.
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And you can change something about the code like right now it's changing between
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um position one
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and position two every one second i could change this to just a hard -coded uh like five seconds
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and i can download
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and i'm completely offline right now i can download without being
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online those two do not have to be the same thing
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but it can be very helpful to do online downloads anytime you're not changing physical hardware
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because you're acutely aware of the current state of the device and you can immediately monitor how it changes when it changes.
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So now that we've downloaded, I'll hit that monitor again, it'll go online again, and it'll show us this counter counting up to five seconds.
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So you can do downloads from an offline state or an online state because in either of those scenarios, you're making the call as the engineer or programmer to say,
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I don't care what code was on that device, take this code and now this is your brains.
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This is also why before you do a download on a live system, you should almost always start by doing an upload,
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making sure you have a backup of the most recent code that you're viewing.
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Save it as underscore old.
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Like right now I'm live with this code so I can go to save.
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I can do project save as I could say tutorial online.
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backup or something like that and and I can hit save.
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Okay and now that I've saved off a backup copy I could go ahead
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and make changes and delete stuff and change stuff.
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But again you have to understand anytime you download to a PLC you are changing how
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that PLC is going to command stuff and so you need to be incredibly careful.
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You need to make sure production is aware of any changes
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that you're making and downloading is the thing that you want to be extremely trained to be able to do.
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Or you have a nice bench to f around and find out as they say.
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So again, uploading is pulling code off of a PLC.
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It's generally thought of as quite safe.
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It's a good way to get a backup.
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It's a good way to make sure that you have a recent version of whatever code is running on your device.
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Going online is live monitoring your code.
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It doesn't necessarily refer to making changes.
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There are ways to go online
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read only so you can't even make changes
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and that's a really great tool for like maintenance sometimes
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and support technicians and folks who don't write code
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but they need to understand what's happening
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and then download is the big careful safe you're pushing changes to the controller
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so you really need to be aware of what you're doing
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so I hope that all made sense again even
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if you don't program in TIA portal with the Siemens platform these concepts are quite
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if you have any questions about what you saw in this video today.
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And let me know what programming or automation and controls concepts you want to see next on the channel.
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Thanks for watching and see you next time.
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Bye.
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Vocabulario y notas de pronunciación para esta lección
Este vídeo tiene 138 frases y 1937 palabras para practicar shadowing. La parte hablada dura 11:39. El hablante habla a un ritmo natural de unas 166 palabras por minuto, cercano a una conversación cotidiana. Solo el 81 % de las palabras está entre las 3.000 más comunes del inglés, por lo que el vocabulario es exigente.
Vocabulario clave de este vídeo
15 palabras menos comunes del vídeo, con su pronunciación y significado:
- upload /ˈʌpˌloʊd/ (verbo) — subir, cargar. To transfer data to a computer on a network, especially to a server on the Internet.
- monitor /ˈmɑ.nɪ.tɚ/ (sustantivo) — monitor. Someone who watches over something; a person in charge of something or someone.
- backup /ˈbækˌʌp/ (sustantivo) — respaldo. A reserve or substitute.
- portal /ˈpɔːɹtl̩/ (sustantivo) — portada, portal. An entrance, entry point, or means of entry.
- connect /kəˈnɛkt/ (verbo) — conectar, empalmar. To join (to another object): to attach, or to be intended to attach or capable of attaching, to another object.
- controller /kənˈtɹoʊlɚ/ (sustantivo) — controlador, contralor. One who controls something.
- output /ˈaʊtpʊt/ (sustantivo) — producción, output. Production; quantity produced, created, or completed.
- routine /ɹuˈtin/ (sustantivo) — rutina. A course of action to be followed regularly; a standard procedure.
- serial /ˈsɪɹ.i.əl/ (adjetivo) — en serie, serial. Having to do with or arranged in a series.
- flip /flɪp/ (verbo) — darle vuelta, voltear. To throw so as to turn over.
- offline /ɔfˈlaɪn/ (adjetivo) — offline, fuera de línea. Of a system, currently not connected (generally electrically) to a larger network. For example, a power plant which is not connected to the grid, or a computer…
- flop /flɑp/ (verbo) — desplomarse, colapsar. To fall heavily due to lack of energy.
- refer /ɹɪˈfɜː/ (verbo) — referir, remitir. To direct the attention of (someone toward something).
- bench /ˈbɛnt͡ʃ/ (sustantivo) — banco, banca. A long seat with or without a back, found for example in parks and schools.
- hardware /ˈhɑɹdˌwɛɹ/ (sustantivo) — hardware, soporte físico. Fixtures, equipment, fasteners, tools, and devices used for general-purpose construction and repair of a structure or object. Also such equipment as sold as…
Phrasal verbs que vas a escuchar
- look at (verbo) — mirar, funar. To observe or watch.
- talk about (verbo) — hablar de, hablar sobre. Used to draw attention to the speaker's characterization of someone or something.
- go ahead /ˌɡoʊ əˈhɛd/ (verbo) — venga, adelante. To proceed with; to begin.
- find out (verbo) — averiguar, anoticiarse. To discover, as by asking or investigating.
- go on /ˈɡoʊˌɒn/ (verbo) — continuar. To continue in extent.
Pronunciación a tener en cuenta
El hablante usa 55 contracciones y formas reducidas, como I'm, you're, don't. Dilas en su forma corta, tal como las oyes.
- Los sonidos de “sh” y “zh”: automation /ˌɔ.təˈmeɪ.ʃən/, indication /ɪndɪˈkeɪʃən/, configuration /kənˌfɪɡ.əˈɹeɪ̯.ʃən/, restriction /ɹɪˈstɹɪkʃən/, technician /tɛkˈnɪʃən/
- Palabras largas — cuida el acento: automation /ˌɔ.təˈmeɪ.ʃən/, universal /ˌjunəˈvɜɹs(ə)l/, necessarily /ˌnɛs.əˈsɛɹ.ə.li/, successfully /səkˈsɛs.fə.li/, incredibly /ɪŋˈkɹɛdɪbli/
Cómo practicar con este vídeo
- Escucha el vídeo entero una vez sin hablar y anota las palabras que no conoces.
- Empieza a velocidad 0,75×, haz shadowing frase por frase y vuelve a la velocidad normal cuando te resulte fácil.
- Grábate y compara con el original, prestando atención a palabras como upload, monitor, backup.
¿Qué es la Técnica de Shadowing?
Shadowing es una técnica de aprendizaje de idiomas respaldada por la ciencia, desarrollada originalmente para la formación de intérpretes profesionales y popularizada por el políglota Dr. Alexander Arguelles. El método es simple pero poderoso: escuchas audio en inglés nativo y lo repites en voz alta de inmediato, como una sombra que sigue al hablante con solo 1-2 segundos de retraso. A diferencia de la escucha pasiva o los ejercicios de gramática, el shadowing obliga a tu cerebro y músculos de la boca a procesar y reproducir simultáneamente patrones de habla reales. Las investigaciones muestran que mejora significativamente la precisión de la pronunciación, la entonación, el ritmo, el habla conectada, la comprensión auditiva y la fluidez al hablar, convirtiéndola en una de las metodologías más efectivas para la preparación del IELTS Speaking y la comunicación en inglés en el mundo real.