Hello,

I have very simple visualisation with two screens. I would like this screens to swap automatically at regular intervals, without using tags in the PLC. Please help!

How do you configure a screen change via the controller in WinCC (TIA Portal)?

You could try using this but with an internal tag, which you trigger cyclic

Regards,

I've tried this sheduled task several times in combination with small script, whitout success, because of syntax error in the script. Previous and last post pushed me to try once again and finaly I did it!

I made the script:

"Sub VBFunction_1()

If tag_screen_1=0 Then
 ActivateScreen "Screen_1",1
Else
 ActivateScreen "Screen_2",2
 End If

End Sub"

and put in sheduled task every minute:

now every minute the screens are changed.

Thanks a lot guys!!!

Hello small78,

I could utilise your experience.

I tried to follow these examples but I coul not figure out how you did, where you typed the function code. And does the trigger tag have to be a PLC tag or it can be an internal hmi tag?

I couldn't get the cyclic task working either because I could not set the acquisition mode, it wasn't active.

Thank you

Kiiza

Hello small78,

I could utilise your experience.

I tried to follow these examples but I coul not figure out how you did, where you typed the function code. And does the trigger tag have to be a PLC tag or it can be an internal hmi tag?

I couldn't get the cyclic task working either because I could not set the acquisition mode, it wasn't active.

Thank you

The cycle time of the tag is not available if you use internal tags. There is no need to have an update rate for the internal tag.

The trigger tag for triggering a change in screen number can be either internal or external tag.

I suggest to you to show the guys what you have difficulty with. Take the pictures made in the earlier post and mark the sections you have difficulty with. I have no idea what you mean by saying "function code" for example.

Good luck.
w