Logic OR: Boolean Circuits in LAD, FBD, STL and SCL

Let's program a simple OR circuit in four very common programming languages!
Using TIA Portal
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[@mrhnsn]

Great! Just remember that in SCL you need an ELSE clause to make the "Test SCL"-bit turn FALSE if neither "left hand" or "right hand" is activated.

[@SachinKumar-jd2vn]

I just starting internship in siemens in automation and my faculty mentor recommand to watch your video i hope it will help me a lot

[@jeanmauricerobin2432]

THANK YOU, I'm not beginner in programmation, but I am in PLC and this kind of video is very helpfull to know how to do and tips.

[@rapellymohansai205]

Good work professor. excellent training session

[@petrestaicu6875]

Excellent, thank you for all your video trainings !!!!

[@hegamurl7434]

You are very welcome!

[@simonmax3901]

That was great......a good start to learn scl

[@ASIF-ww8ol]

very good video

[@Boltoperas]

Thank you

[@Cordycep1]

Basic is fine since I am preping for an entry level interview for Control Engineer . thank you

[@_Iokanaan_Marusidze_]

Thanks 👍

[@4mviews0417]

you are soooo goooodddd

[@kamelhamdi2219]

Danke

[@josedesouza4403]

Muito excelente!! TKS!!!

[@VVCepheiii]

Your SCL code doesn’t have the same logic as the others, “Test SCL” will stay true without an ELSE “Test SCL := FALSE;”. You can also simplify this by “Test SCL := Left OR right;”.

[@shahinsainu1909]

Yeah he just want to demonstrate the IF condition along with a basic operation. 1 shot two birds :)

[@JinsonKurianVJames]

Nice. But it's very basic.Helpful for beginners.
But Tia portal gives option in properties to convert FBD to Ladder or vice versa. But STL is the language is short, easy to copy paste and use find and replace cmd to just change address for complex programs.
As Electrical Design Engineer, Ladder is easy for me as same as control panel relay logic design. For computer since engnr, SCL may be easy as C language. For electronic engineer, FBD may be easy as electronic logic gate operations.

[@hegamurl7434]

So there is something for everyone! Of course every single language has it's dis-/advantages and also differs per application

[@guruchordiya3416]

Sir please make video on graph... State transition logic.. .

[@ajayrai8830]

❤

[@framos9991]

👌

[@sadeceibrahim3317]

it is simplest in SCL as you can see below ;
" Test SCL := Left Or Right ; "

[@jishnurajp2977]

why cant we use a normal set and reset instead of this block?

[@dj1encore]

Thanks for the amazing videos.
I have used Siemens Logo and now plan to use the Siemens s7 with TIA. Is it possible to replicate the single function block diagram like the Logo has ? I understand that this is an upgrade but have become comfortable with the Logo Comfort soft approach.

[@mohamedelyamineslimani7545]

thanks you

[@timbirt291]

Hi Hegamurl, I love your videos. Is there a way of converting Boolean to Integer using LAD or FBD please?

[@huntersblue]

Can you have a plc program with both languages?

[@hegamurl7434]

Yes of course! Whenever you create a new Function you can choose the programming language it should be in. If you choose LAD/FBD they can be swapped at any time you want.

[@user-kg6yf8qz7m]

Thank, i try to learn SCL

[@JinsonKurianVJames]

Is there any option is Tia portal to Swap Ladder to STL? I could find this option in simatic manager.

[@hegamurl7434]

If you are using a S7-300/400 it should still be possible in TIA.
The compiler of S7-1500 works differently, that's why STL is NOT the main language anymore, so you can NOT switch from LAD/FBD to STL when using an S7-1500
(S7-1200 cannot even understand STL at all)

[@JinsonKurianVJames]

@@hegamurl7434 thanks. Much appreciated your knowledge . Very helpful.

[@renatogoncalves5931]

make a pid control video .. temperature.

[@saeed2tube]

Very low level.😕
And the next video will be about xor gate.😉

[@shashanktyagi3281]

If I want to use one NC contact so how to use in SCL.

[@andresvosa]

In SCL I'd like to write something like this: Test_SCL := (Left_Hand OR Right_Hand);

[@chaowang283]

Good ，I am Chinese

[@zhengkunyan8001]

😄。😄😄

[@dennisrubio2375]

pretty basic sr 😌