What is RTU?

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RTU stands for Remote Terminal Unit, sometimes also called Remote Telemetry Unit or Remote Telecontrol Unit. An RTU is a microprocessor-based device that monitors and controls field devices, that then connects to plant control or SCADA (supervisory control and data acquisition) systems.
If you do a search on the definition of an RTU, you may find many results that state an RTU is much more powerful than a PLC as the RTU can have several inputs and outputs.
Well, as you know, so can the PLC. The RTU does have some potential benefits over the PLC, which we will discuss.
On the price point, the winner right now is the PLC. PLCs have a lower price point but many consider the RTU to be a much more rugged system which would lead you to believe that spending more initially will equal out in the end.
As far as process control, the RTU is probably on equal ground with the PLC. Both controllers can have multiple different types of I/O, different communications modules, and programming of processes that may require little to no operator intervention. Where the RTU is considered to have some advantages is in environment tolerances, backup power options, and autonomy.
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[@demosiac8036]

I just want to say I very appreciate these videos. I am an electrical engineering students, and these internet condensed information are a god-sent. Thank you for your contribution. Much appreciated.

[@realpars]

Glad you like them!

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[@realpars]

Happy to hear that! You're very welcome.

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[@realpars]

That's amazing to hear, thanks a lot!

[@omarabderrahmanalimam888]

a so complicated topic, i worked with both of them, RTUs and PLCs, and it's really confusing. i think that there is some special functions dedicated to the RTU, it can record data by "archiving" and send them at a specific time using some specified protocol dedicated to Telemetry System, it's true that the RTU can lunch some programs like PLC but it's not really designed to be implemented in a manufacturing plant, usually it used for intersite communication ... and usually it does not contain any program ... sometimes we can fine both of them in an electric cabinet, the PLC for process controlling and the RTU to collect informations ...

[@realpars]

Thanks for sharing your knowledge with us!

[@albakhati5529]

Another best topics from realpars

[@realpars]

Thank you Ahmed!

[@heiken01]

Labview and RTU, the perfect match!

[@energytech3521]

PLC for programming and control process RTU for data communications and serial messaging

[@sumitgocher4546]

I am doing job in multimetals limited E&I project.we user Schneider electric equipments for all use.csn you provide basic knowledge of Schneider PLC programming as like how to check address value etc in PLC.

[@satyendrakumargautam1821]

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[@realpars]

Amazing! You are very welcome.

[@stringsandhamers]

Thank you for this video i really didn't know the diference (:

[@realpars]

You're very welcome!

[@shakhzodkhamidkhonov8164]

I love your videos so much. considering that I am novice, what background information or what knowledge should I have to better understand all of your courses and industrial automation.

[@realpars]

Hi Shakhzod, Thanks for reaching out! Great to hear your motivation to learn PLC Programming. Our course library is specifically designed in a way where it provides all the tools needed for beginners to evolve into an advanced level through our hands-on courses. Feel free to browse through our course library to see all the different topics we are covering. bit.ly/30AVJaR Just to let you know, that we also have a free course on PLC Hardware bit.ly/2XnnUrF If you are interested, you will obtain full access to our complete course library (400+ video courses) by subscribing to either our monthly package for $19.99 a month or our yearly package for $119,- ($9.99 per month). Feel free to reach back out if you have any further questions.

[@rickjames9111]

Great Channel!! Thank You.

[@realpars]

Our pleasure!

[@acectrl]

Great video. Cheers!

[@realpars]

Thank you!

[@RNJVID]

Need to add that RTUs have more diverse, fault-tolerant, & latency-ready communications capabilities compared to common PLCs. Most Modern RTUs can handle the same IEC 61131 programming as modern PLCs.

[@electriciteindustrielle9251]

thanks for the explanation

[@realpars]

You are very welcome!

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[@realpars]

Thank you!

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[@realpars]

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[@avidLii]

Very insightful

[@realpars]

Thank you David!

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GRACIAS POR LA EXCELENTE INFORMACIÓN! DESDE VENEZUELA

[@realpars]

De nada, Odeilys!

[@cd15000]

Simply great Video (Y)

[@realpars]

Thanks a lot, Ivan!

[@natriumguy8537]

Informative video.

[@realpars]

Thank you!

[@felixmutandi4753]

Hello dear sir, can you please provide us the detailed for your training course because PLC programing i need to learn from you.

[@realpars]

Hi Felix! If you take a look at our website realpars.vhx.tv/browse, you have the option to subscribe and get unlimited access to our course library which also includes PLC programming.

[@KevinNguyen-tw5ml]

Thank you!

[@realpars]

Our pleasure!

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[@realpars]

You're welcome!

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Very good 👏

[@realpars]

Thank you!

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This got recommended to me while I was watching one of ReviewTechUSA's video.

[@realpars]

Amazing to hear that! Hope you liked it.

[@khaleedan]

Very good info

[@realpars]

Thanks a lot!

[@jaikishank]

Great and concise explanation.Thank u.

[@realpars]

Glad you liked it!

[@deepakg158]

Hi could you put a training video for how to programme a Motor Drive? Thanks

[@realpars]

Thanks for the topic suggestion, Deepak! I will forward this to our creator department!

[@deepakg158]

@@realpars Thank you

[@susovanpal7670]

Can you please make video about electrod regulation.

[@realpars]

Hi Susovan! Thanks for the topic suggestion, I will definitely go ahead and forward this to our creator team. Happy learning!

[@ivancalla5779]

great video

[@realpars]

Thank you, Ivan!

[@Forrdeon]

Hi, can you explain about Intelligent Electronic Devices (IED), please?

[@realpars]

Hi Ivan, I will pass this request on to our creator team. Hopefully, they can make a video out of it.

[@Forrdeon]

@@realpars glad to hear that :)

[@yakikadafi6189]

I’m a final year electronics and communications engineer what do u advice me ? Should I take the PLC course program? Pls I need many options because I’m still studying and I have the time.. god bless u

[@realpars]

Electronics & Communication Engineering (ECE) has communication essentials that involve majorly modern-day communication techniques. If you are interested in industrial automation and keenly into software, system designs, then definitely go for it!

[@yakikadafi6189]

Alright sir u helped me a lot thank u And is there any specific program or there’s many ? And can u recommend one pls

[@yakikadafi6189]

If u already uploaded some programs on ur website that’s much better

[@GeorgeMan_1981]

Siemens s7-1200 for start..

[@JBCFAUTOMATION]

Can you create some about EtherCAT protocol?

[@realpars]

Hi Juan, I will pass this on to our team.

[@najirshaikh6988]

Please post a video for canbus comm. Protocol

[@realpars]

Hi Najir, Thanks for your comment and your suggestion. I will pass this on to our course developers! Thanks for sharing and happy learning!

[@syaifulmuarif6189]

usefull video

[@realpars]

Thank you!

[@proengeleceng6861]

Can one dcs unit controls in multiple rtu's ??? thanks for sharing

[@realpars]

Theoretically, yes, but an RTU is not going to be directly compatible with a DCS system, and therefore, it will be seen as a "foreign" device on the DCS network. It can in many cases be able to communicate with the DCS via OPC or some other standard communication network. RTU's are typically connected to a server or PC that supervises the operation on the RTU's and collects data for a historian and displays data on HMI screens. Some DCS systems have virtual controllers that connect directly to the DCS and are able to be programmed to communicate with RTUs. Here is one common example: www.emerson.com/documents/automation/deltav-rtu-connect-for-oe-2-83-white-paper-en-132566.pdf

[@niteshkumar-hg8lx]

Aswm vedio

[@realpars]

Thank you!

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[@user-lp2hf9mj2r]

🤙 very good

[@realpars]

Thank you!

[@ericzheng1421]

very nice

[@realpars]

Thank you!

[@czmark04]

Im a bit lost. From what I know its just a protocol, so one feature is no the same across the board. Its specific to its own device.

[@realpars]

Hi Mark, thanks for the comment. You may be confusing hardware versus "software", for lack of a better word. For instance, there is a Modbus_RTU protocol to handle serial communications which is a protocol within a controller. This is on the software side while RTU, in the case of this video, is referring to hardware. Hope that helps!

[@czmark04]

@@realpars ah ok, thank for clarifying.

[@regulus8518]

"some RTU can be programmed with languages such is basic, visual basic and C#" this is not a disadvantage but the major reason to use RTU over PLC

[@ReStellar]

Yeah, that's way better than using Latter Logic, and Basic, VB, and C# are pretty simple language, outside of knowing the .NET framework, which I think not require for the RTU!

[@the-beneficiary1809]

uh no yo fckn idiot programming industrial control in Python or C++ is utter garbage nothing beat Ladder logic it's 100x easier to trouble shoot fuck off with your C# and C++ programmin if you want to do that go program an arduino you fckn idiot@@ReStellar

[@berkyldz5985]

Hi, can i connect IP cameras to RTU or PLC?

[@realpars]

PLC's are very efficient and fast at solving boolean equations and logic equations. They do this very fast and reliably. Video, especially video streaming, requires a different type of computing power, including multi-threaded CPU channels, large amounts of memory, and pre-processing cache. These are not features afforded in PLC CPU architectures. Some PLC's do have function cards or co-processors that allow for video frame capture, but the "work" is not being done by the PLC, only the triggers to when the video is captured. Integration of video in modern control systems is normally handled at the HMI level. That said, camera systems can be interfaced to PLC's through Profinet that act as sensors and whose operation cn be controlled by a PLC. Even in this case, data exchange with the camera will be limited to the capabilities of Profinet (256 bytes in and 256 bytes out). An example can be found here: www.ad.siemens.com.cn/club/bbs/upload/file/20151204/6358481878313653695350436.pdf

[@berkyldz5985]

@@realpars thank you for your reply. Then, i will change my question. I have IP cameras as i said and i have some alarms and sensors. I'm planning to connect my alarms and sensors to a RTU and IP cameras to PoE switch. Then, i will connect my RTU and PoE switch to my modem. Is it a correct configuration ?

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[@ashwanirathi74]

good

[@realpars]

Thankyou! Happy learning!

[@franciscocarlos8897]

Show excelente

[@ASSmartEngineering]

Thanks

[@realpars]

You're welcome!

[@amazingworlds2939]

RTU have a multi input, BUT How many input available in Scada ?

[@realpars]

SCADA is a general term for the software to supervise the control and data access from a variety of controller and I/O hardware. As such, SCADA systems can range in size from a few dozen I/O to thousands of I/O. Check out these videos: kzbin.info/www/bejne/eGS8h6OdqJ6Fj5Y; kzbin.info/www/bejne/pJ2pfmSnbraDgNk

[@user-ki3lt1yp8e]

@@realpars ♥

[@jontopham2742]

is an SEL relay an RTU?

[@realpars]

An SEL Relay is similar to an RTU, but not exactly the same. Both can be used to remotely monitor a process, but the SEL is typically pre-defined in scope and I/O. But you are correct, they provide similar functions in may ways.

[@maktammaktam1239]

👍

[@shubhampawar496]

Thank you from an INDIAN. If possible please provide us program for ac servo motor.🙏🙌

[@realpars]

Thank you! I will pass your request on to our team instructors ;)

[@ikramantaki]

Do you have servo motor COURSES??

[@shubhampawar496]

@@ikramantaki yes sir

[@realpars]

I'm afraid, we do not currently have any courses on motion control.

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[@florincheche163]

👍👍