CODESYS: Using While-Do loop instruction in Structured text (ST)

If you want to watch the videos in order, download the up-to-date version of the road map from the pinned comment of the corresponding video: • CODESYS: A road map fo...
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In this tutorial, you will learn how to use the WHILE-DO structure in the structured text programming language. I hope you enjoy watching it. Please share the video with your network, like it, and write a comment!

[@MBAutomation1986]

Merci Tohid. I watch the videos one by one and mark them with a like.

[@TohidAlizadeh]

Khahesh mikonam. I hope you find the videos useful 👍

[@RicardoPereira-uh3tg]

Great class, thank you sir.

[@GabriGlider]

Hello Tohid, your videos are beeing very usefull to me. Is there anywere I can get that PDF?

[@ghaffarmathsacademy8774]

Nice One. I have done it Successfully.

[@irshodyakubi7993]

thanks for tutorial and can you explain why you use two timers and what does (NOT Timer02.Q) for timer01 input ?

[@TohidAlizadeh]

The combination of the two on-delay timers makes it possible to generate a square waveform. There are other ways to do so as well, like using a Blink block or using pulse timers.
When two on-delay timers are used for this purpose, the input to the first one would be (Not Timer02.Q). I guess I have explained this in another video tutorial.

[@parshwabhavsar7855]

which video as i want to know second timer logic
@@TohidAlizadeh

[@TohidAlizadeh]

@@parshwabhavsar7855 This one, for example: th-cam.com/video/YyOzihL_K-8/w-d-xo.html

[@venkateshnayak1176]

excellent explaination...

[@TohidAlizadeh]

Thanks!

[@guzzar100]

Thanks for your tutorial. I am having issues with the variable declaration in the textbox i.e. Time, I took object [Text field] and there I have declared Texts > Text >%i, then I have declared Text variables > Text variable>time_out ; it says failed to load into PLC, some exception messages, so I instead used the object [progress bar] and it works fine. just wondering what object yu chose to show the variable time_out value ?

[@TohidAlizadeh]

Thanks for the comment, Jamal.
I am not sure why you receive the error. I have used a "Text field" element and have set the variables as you have described and it works without any problem. Do you get any error message? If yes, please let us know.

[@kajalbakade7820]

how to write in the main window ? ,bcz ladder rungs are their

[@engineeringlibrary9768]

no need for the music in the back ground specially when it is noidy

[@shhur-q4e]

no need of music, it disturbs