hi guys, it's my first day using this platform so i don't know where to ask questions then i have decided to do it here!
i would like to connect my arduino with Win cc tia portal using RTU protocol, i have watched videos on youtub and try to implement them, but when compiling my program it shows me an error " No such file or directory'' which means i don't have library. when i go to the library i dont find them. here are libraries that i dont find:
@djamaloudini - Welcome. You should start a new discussion rather than tagging onto an existing one. Judging by your question, you chose the correct section of the forum.
If you haven't already, then please read the forum guidelines as they will help you out. You do need to tell us which Arduino bard you are using, which RS485 module you are using, how you have wired up the various boards, and provide a link to the user manual for the device you are trying to talk to.
Please avoid using abbreviations as not everybody will know what "Win cc tia portal" is - myself included.
I've flagged your post so that it can be moved off this particular discussion. MOD delete this line if you want to.