CODESYS: Packing and unpacking Bytes to DWORD in CFC

[@andrewott33]

Thanks for creating this video. It was helpful!

[@TohidAlizadeh]

Thanks for your comment! I am happy that you found it helpful 👍

[@tareklaouini6665]

Very useful video, Thank you Tohid

[@TohidAlizadeh]

Thanks for your comment 👍 I am glad you found it useful.

[@edharlow1]

Thanks for posting this. This looks like it could be a useful way to bring in RS5000 EthernetIP data (which is usually transferred in DWORD format) into a Codesys machine and re-assemble it into INT or REAL.

[@TohidAlizadeh]

Thanks for your comment. I am also planning to use the packing for another purpose in my next video tutorial.

[@asv5769]

Great content! Perhaps you already explained that before, but I wonder what is the real difference between Login with online change and Login with download. I saw that you prefer download option

[@endprg6477]

А Вы можете сделать видео по работе с MQTT?

[@TohidAlizadeh]

I will give it a try, when I find some free time!

[@hamituysal491]

Hello Mr. Tohid. Can you share an application video that contains MC_TrackKonveyorBelt without using an industrial camera?

[@marcev4126]

Hello Tohid, I have a question about building a PLC application and Codesys. What is the difference of "Device" and "POU" tabs? I see that I can add DUTs, POUs, text lists and visualizations under both of those tabs. In every video I see people building under "Device" tab but I don't understand the difference of those two tabs and when should you use one or the other?

[@TohidAlizadeh]

Hello there, The device refers to a PLC in general that you are going to program. In a project you can have multiple of them. For each device, you can have one or more applications, within which you will have the POUs and other elements to implement your logic. I hope it is clear enough.

[@bamirshijaku6604]

Hi Mr Tohid. Thanks so much for the very helpful video. I was wondering if you could put a tutorial on how to convert the analogue value stored in an Modbus Output Word to a real value which we can read and display in HMI. Or how to convert a dword into floating Value. Thanks in advance

[@mdniyytocag741]

Nice tutorial. What would be an example of using this technique?

[@TohidAlizadeh]

One example is color management, for which I have a tutorial. Make sure to check it out 🙂

[@1mandragor1]

Dear Tohid. Another good movie... Thank You!!! I have some question: How can I change variable :STRING, to use it with for eg. CASE or IF instruction? var1:string(50):='text'; ///// here I need keep a diference text. START,STOP, MOVE, ETC. CASE var1 of 'first_text': *********** ////code here 'second_text': ********** //// code here end_case;

[@KlaasHK]

Hi, I got a question I had an assignment to make in codesys but I'm completly stuck, can you help me / can you show me how you would do an assignment like this? The assignment is Switch1 - red and green light turns on Switch 2 - red and yellow light turns on Switch 3 - Yellow and green light turns on Switch 1 and 3 - all lights turns on Switch 4 - every light turns off Hope you can help me :)

[@TohidAlizadeh]

I would do it in this way: For each light, determine the case in which the light should be turned on and make the logic for that light. For example, Red light is on if SW1 or SW2 or (SW1 and SW3). I hope this helps. Let me know if you manage to implement it.

[@umutkose6056]

How can download this CAA memory library. Can you help me pls?

[@TohidAlizadeh]

In your project tree, go to the "library manager", then choose "Add library" and then look for it there. After that, just add it to the project and you will have access to all the functions. I hope this helps!