What is SCADA?

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The SCADA acronym stands for Supervisory Control and Data Acquisition.
A SCADA system is a collection of both software and hardware components that allow supervision and control of plants, both locally and remotely.
The structural design of a standard SCADA system starts with Remote Terminal Units (RTUs) and/or Programmable Logic Controllers (PLCs).
As you know, RTUs and PLCs are microprocessors that communicate and interact with field devices such as valves, pumps, and HMI’s.
That communication data is routed from the processors to the SCADA computers, where the software interprets and displays the data allowing for operators to analyze and react to system events.
Before SCADA, plant personnel had to monitor and control industrial processes via selector switches, push buttons, and dials for analog signals.
This meant that plants had to maintain personnel on site, during production, in order to control the processes.
As manufacturing grew and sites became more remote in nature, relays and timers were used to assist in the supervision and control of processes.
With these devices employed, fewer plant personnel were required to be on site in order to oversee and control operations.
While relays and timers did provide some level of automation, the panels required for these devices took up valuable real estate, troubleshooting was a nightmare, and reconfiguring was difficult at best.
These issues, in conjunction with the need to grow even larger industrial plants, helped to facilitate the birth of automation.
Controlling industrial plants via processors became a reality in the 1950s. Gas and oil, utilities, and manufacturing were major users of these new technologies and supervisory control.
Another decade later the term SCADA was used to describe systems with PLC’s and microprocessors that were being used for the monitoring and control of automated processes on an even greater scale than ever before. SCADA, back then, was anything but practical.
In the next couple of decades, the ’80s and 90s, with computer systems getting smaller, the advent of Local Area Networking (LAN), and HMI software, SCADA systems were able to connect to related systems.
Later in the ’90s and 2000s, SCADA began to implement open system architectures with communication protocols that were not vendor specific.
As you can imagine, this opened up SCADA’s ability to connect with varying vendors. This newer, more improved SCADA was then called a networked SCADA system.
Current day SCADA systems have adapted to the changing technologies and have a great advantage over the older SCADA systems.
With the adoption of modern IT standards such as SQL and web-based applications, today’s SCADA allows for real-time plant information to be accessed from anywhere around the world.
Having this data at the operator’s fingertips facilitates improved plant operations allowing for responses to SCADA system queues based on field collected data and system analysis.
Essentially, SCADA is a collection of hardware and software components.
This collection of components begins with real-time data collected from plant floor devices such as pumps, valves, and transmitters.
These components don’t have to be from a particular vendor, they just need to have a communication protocol that the processor can utilize.
Data collected from the field devices is then passed to the processors such as PLCs. From the processor, the data is distributed to a system of networked devices. These devices may be HMIs, end-user computers, and servers.
On the HMI and end-user computer, graphical representations of the operations exist for operator interactions such as running pumps and opening valves.
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[@realpars]

Want to learn about industrial automation? Go here: www.realpars.com/individual-pricing
Want to train your team in industrial automation? Go here: www.realpars.com/pricing-team

[@RYXPfan]

The value of these free videos on UA-cam is tremendous. Thank you for such quality material!

[@realpars]

Glad to hear that, Chris! We very much appreciate that.

[@atiqRehman111088]

Love the way u presented the Scada.
Thank u so much.
A very big fan of Real Pars.
Thank u so much.....

[@realpars]

So nice of you! We're happy to hear that

[@AdrianJayeOnline]

LOL I work for Enbridge , I'm a tech in the service center we have SCADA techs ring in, all the calls are high prioirty. good to know what it is ! txs !! Not even sure why this is on my recommended's lol but surprisingly happy it was !

[@HellOnGames]

Thanks for the history of the SCADA also. It really helped for my research about history of MQTT.

[@realpars]

Glad you enjoyed it!

[@sanika6916]

the timeline part was the best! understood. thankyou.

[@michaelhagen9714]

Great presentation! I loved the history and transitions as computing modernized. Thank you!

[@realpars]

Thanks so much!

[@TopAhmed1]

Just started my MSc and found this so interesting, thanks for your effort, will probably subscribe to one of the courses

[@realpars]

Great to hear that, thanks a lot for sharing your positive feedback with us.
We would be happy to see you joining the RealPars family!
Best of luck with your MSc and happy learning!

[@ramakrishnapamidi2219]

Thankyou so much realpars.....now iam clear reguarding scada

[@realpars]

Great to hear that!

[@mauricioarboledacastro8102]

The best youtube channel about automation !!!!

[@realpars]

Thanks a million, Mauricio!

[@mohammadfarhankhan2841]

Thanks RealPars
Your all videos is very knowledgeable

[@realpars]

Thanks for your support, Mohammad!
Happy learning!

[@carlosvalverdeb]

Very concise and complete explanation and history of SCADA Systems. It' helps a lot for understanding of SCADA to get a full overview of the its evolution for the Engineers who didn't see it's beginnings. I myself learned a little of SCADA systems at university, but as I started working in the early 2000's, I did it on DCS. The architecture I learned to design was a central field controller conected to the LAN with multiple digital/relay I/Os (and in some cases extension I/O boards) wired to sensors and actuators on the field. A server was connected to it through the LAN and sessions could be started from anywhere with access to the network. From that point a lot of customizations were possible through networking, reporting with SQL and programming additional functions with asp-scripts.

[@realpars]

Thanks a million for sharing that with us, Carlos!

[@ashriyainvestments1410]

I wish you help me learning this scada module... Will u?

[@bayroncastillo7653]

Wow

[@ScadaHub]

Great explanation, easy to understand. Thank you

[@realpars]

Glad you liked it!

[@rabindranathraul9450]

Very nice and simple way of explaining the SCADA systems.

[@realpars]

Glad to hear that! Happy learning

[@BroMan-ff2ft]

You could make SCADA on your own m.ua-cam.com/video/gqqmAz-gwLU/v-deo.html

[@soufianekremcht5154]

This was Quite Helpful ! Thanks

[@realpars]

Glad it was helpful, Soufiane!

[@anhnguyenngoc6028]

thank you so much!! It's very clear

[@realpars]

You are very welcome!

[@gurmejsingh1841]

@@realpars n

[@rhoonah5849]

I used to work for Intellution, Inc. in the late 90's in the driver development group. I wrote the OPC Client driver and added OPC functionality to many other drivers as well as the driver toolkit. I also wrote the Modbus 7.x driver (MB1) and Allen Bradley RSLinx 7.x driver. Basically if you are able to get data from an OPC server into iFIX, I wrote it.

[@CasperHarris950]

Wow

[@rhoonah5849]

@@CasperHarris950 Yup. Fun times :)

[@gold24diamond35]

Hi, how could I connect with you?

[@rhoonah5849]

@@gold24diamond35 For what purpose?

[@gold24diamond35]

@@rhoonah5849 Hi, I am a student looking for mentor in industrial automation, Regards.

[@ahmedb8395]

Excellent quality work. thanks.

[@realpars]

Thank you, Ahmed!

[@rammilanthakur9363]

Thank you so much for support..

[@realpars]

You are very welcome!

[@jeremybeem5436]

Plol

[@robbymashegorobby9310]

excellent explanation. thanks for the knowledge

[@realpars]

Thank you, Robby!

[@rubenbraekman4515]

Cool, good information for my project!

[@realpars]

Great to hear that, Ruben! Best of luck with your project!

[@ranaabdulrehman7583]

thanks a lot i m learning from your vedio .i understand you r my teacher. you r great man

[@realpars]

Thank you! Happy learning!

[@hallittleton7445]

Network+ prep brought me here. Good look to you all in your networking journey!

[@realpars]

Awesome! Thank you!

[@gurindersingh8109]

Clear concise introduction

[@realpars]

Thank you!

[@gurindersingh8109]

@@realpars Thank you

[@abrehamish]

Excellent presentation.

[@ThinhLe-eh9re]

Amazing explaination 😊

[@mohammedhafez7984]

Wonderful simplification

[@realpars]

Glad you think so!

[@Kingman-wd1bn]

thank you sir, It is easy to understand

[@realpars]

Great to hear that! Thanks for your support.

[@deltaindustrialautomatione3123]

Great presentation, very clear

[@realpars]

Glad you liked it!

[@majidkakaee]

Thank you so much, its really great video. Appreciated....

[@realpars]

Thanks for your support, Majid! Great to hear that.

[@narongsakj2246]

Thanks.That may be next project.

[@muhamadtawfeekabubakar4375]

Thank you so much guys.. Stay healthy, stay strong. Hv a nice weekend...

[@realpars]

You're more than welcome, Muhamad! Happy learning.

[@kynguyendinh6487]

Thanks for your video !

[@realpars]

You're very welcome!

[@amitpurushottam3952]

Excellent Documentation

[@realpars]

Thank you!

[@sandiagocity2753]

Excellent 👍, very easy and informative video

[@realpars]

Glad it was helpful!

[@rkroshanprince]

Thanks , helpful for B.Tech CSE

[@realpars]

Happy to help!

[@shreesingh208]

Nice Explanation
Thanks ❤

[@realpars]

Thanks a lot and you're very welcome!

[@gollalappahadpad7761]

Thanks a lot for valuable information 🙏🌹

[@realpars]

Always welcome!

[@BurRun-kt3tf]

Thank អរគុណ

[@antonputra1813]

Thank you,good videos

[@realpars]

Thanks a lot! Happy learning!

[@hongwang5310]

Great video!

[@MD-cd7em]

YES SIRR!

[@moaothi8405]

Thank you dear great work

[@realpars]

You're very welcome, Moa!

[@amitpurushottam3952]

Great Documentation

[@realpars]

Happy to hear that, Amit!

[@namangoku2649]

Thanks Alot
Please add some code stuff in later videos

[@SCADAWorld]

Thanks 🔥

[@KIMVannthy]

So good video training

[@realpars]

Many thanks!

[@aymenberour]

Thanks for the video 🙏
But more explanation 😜 please ❤️!

[@realpars]

You're very welcome, Aymen!

[@MukeshKumar0204]

Superb explaination❤❤

[@realpars]

Thank you very much!

[@michaelladd4049]

Love ya'lls vids

[@realpars]

Thanks, Michael!

[@qaiserbozdar1542]

Nice video, I am trying to understand these are some what difficult topics.
Realpers, please teach us about PID CONTROLLERS basics essentials and initials and also with using (Op amp).

[@realpars]

Thanks for your comment, Qaiser! I will see if our creator team can create a video course on those topics!

[@james77011]

thank u for this... now i know what scada is... i think i might start studying PLCs

[@realpars]

Great to hear that! Happy learning, James!

[@Elecnova]

Great video, please share us more about PID circuit and the PID controllers .

[@realpars]

Thanks for your topic suggestion! I will happily pass this on to our course developers.
Happy learning!

[@growfast007]

thanks for this informative videos

[@realpars]

You're very welcome!

[@chimecharles409]

Thanks for this interesting video

[@realpars]

Glad you enjoyed it!

[@muhamadyusri784]

your video help me a lot, thank you:) , now you have new subcriber.

[@realpars]

Glad to hear that, Muhamad! Happy learning.

[@runbou3019]

Thanks អគុណបង👍👏

[@realpars]

You're welcome!

[@elvisbesic6982]

Great videos goood job just keep posting thnx

[@realpars]

Thank you, Elvis!

[@payalgupta4954]

What a video,its just great

[@realpars]

Thanks a lot, Payal!

[@andersongadelhafontoura4346]

Thanks...plz do a video about OPC-UA and RAMI 4.0

[@realpars]

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

[@rwstavros]

There is a DDS-OPC gateway being standardized now

[@jonjonsson6323]

* also, use a person that understands systems when applying scada and remember to use " dumb" switches in combination with scada . No one wants an software adjustable safety function wich by accident can be tampered with so automation is good, but to be used with system knowledge. Systems are still sometimes complex

[@jaymoteroviajero4475]

Nice job!

[@realpars]

Thank you, Hamza!

[@mohammedjimmy7393]

Great effort

[@realpars]

Thanks a lot, Mohammed!

[@nazirulsyahmi4669]

niceeee. good job well explanation

[@realpars]

Thanks a lot!

[@malaysiacampingsites5960]

impressive, informative

[@realpars]

Glad it was helpful!

[@topten7064]

So thanks

[@khalilezzeddine7173]

Please can you make an overall video about safety relay on how to connect it

[@realpars]

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

[@scadamalaysia]

Very informative

[@realpars]

Glad it was helpful!

[@techtalklalitesh]

good to see

[@mizanurrahmantalukder9960]

thank you

[@showtube31]

You are good thank you

[@realpars]

Thank you!

[@user-pg1ki9gm3f]

thank you ~ 나는 한국인이다. 많은 정보 배우고 간다. 친구들한테 공유 많이할게

[@generaltechnologyknowledge5165]

Good video sir thanks for sharing

[@realpars]

You're very welcome!

[@MdBinAlNasr9485krd]

Nice stats bro keep it on👍. #SCADA

[@realpars]

Thanks a lot!

[@laithjawad9208]

Pls could you prepare videos for Honeywell DCS . Many thanks 😊

[@realpars]

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

[@Ethel-Wobo]

In support of your suggestion ☺️

[@kunal_chand]

Awesome !!

[@realpars]

Thank you!

[@eastern815]

thanks

[@irinaauramanolache3688]

Excelent!

[@realpars]

Thanks, Irina!

[@emmaqulateochieng868]

Please could you prepare a demonstration on how scada can be used in nurse call systems

[@realpars]

Thanks for your feedback and topic suggestion! I will happily go ahead and share this with our course developers

[@nuthalapatisudhakararao3515]

Thanks for sharing ... informative ...pls share software link.

[@hauntedman89]

Nice Videos,
can you make an video how automation works in Vial filling line (washing,capping,Depyrogenation tunnels) and also the servers which will be used for this

[@realpars]

Hey Santhosh!
Thanks for your comment and your topic suggestion. I will pass this on to our course developers!
Thanks for sharing and happy learning!

[@dwilliams42170]

I have a BSEE and 30 years as a technician. I’m looking for Veteran’s Affairs approved schools to learn Simatic and specialize in this field

[@aksaloon047]

Good job

[@realpars]

Thank you!

[@aksaloon047]

@@realpars welcome

[@nurudeenkamilu9339]

Thank you for this informative video. However what are the prerequisite to learning SCADA?

[@scottsommer6480]

There are really no absolute prerequisites, but it would help to understand: 1) 4-20ma loops, 24 VDC switches,. and basic circuitry, 2) PC software and networking, 3) some general understanding of the process you are trying to control, 4) simple concepts of programming of controllers or PLC's, and 5) some technical savvy and curiosity. RealPars courses at Realpars.com can certainly help with items 1, 2, and 4. Having hands-on acccess to a SCADA system and exploring its features, hardware, software and interconnections would be a great way to begin to understand these systems.

[@engrsaud8773]

Scott Sommer your WhatsApp number

[@gollalappahadpad7761]

Excellent 👍🌹

[@realpars]

Thank you!

[@falefatufelloyedtoalima1311]

Can you do a video of faultfinding under fault conditions and testing requirements

[@realpars]

Thanks for your feedback and suggestion! I will happily go ahead and forward this to our course developers.

[@Automation28]

Nice video

[@realpars]

Thank you!

[@Sistemaeletrico]

Top excelente

[@alaingbatu3845]

Thanks a lot, am working in the mine control used SCADA system but I don't understand it very much

[@trendgaming752]

Please make a video for fanuc servo drive system svm..

[@realpars]

Thanks for your topic suggestion, I will happily go ahead and forward that to our course developers.
Happy learning!

[@luciocabralchavesjunior9880]

Good job, my friends, always put subscribe to strangers like me take know how.

[@shenmax1283]

great

[@yahyamazlomyar7099]

amazing

[@realpars]

Great! Thanks for sharing.

[@mahmoudreda3959]

Thanks a lot
I need a video for DNP3 vs Modbus.

[@realpars]

You are very welcome, Mahmoud! Thanks for the topic suggestion, I will definitely go ahead and forward this to our creator team. Happy learning!

[@mahmoudreda3959]

@@realpars
Thank you for your interest in my request

[@sciencetech9204]

Please can you make a vidoe on clamatix semiens? Thank you

[@realpars]

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

[@GobeshonaBD]

Can you provide us any student version SCADA software?

[@realpars]

Hi!
We currently have the following links to download different software.
STEP7 V5.6: sie.ag/2Hw6UKy
STEP7 and WinCC V15: sie.ag/2Eo3LKJ
TIA Portal Version 15 sie.ag/2J7tZ4y
Hopefully, these are still helpful to you.
Happy learning!

[@ratanasunheang6763]

Dear real pares, Could you review the SCADA application for MV transmission line ?

[@ratanasunheang6763]

And also for MV distribution grid.

[@realpars]

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

[@AashishBharat]

Sounds a lot like a DCS

[@rameshbajannavar6593]

NICE

[@arnaufalasyamlikur4488]

can you explain the biggest difference between SCADA and DCS? Because, I still confused about it. It's seems similar, although they're different

[@realpars]

Hi Naufal,
Thanks for your comment! We have a full video on the differences between SCADA and DCS, that will hopefully answer all your questions. ua-cam.com/video/B3YVpgs9RY4/v-deo.html
Happy learning!

[@GuyFromJupiter]

The way I understand it DCS is essentially a plant-scale control system, and SCADA is sort of a plant-scale HMI