opening a popup with a PLC tag

Hello Everyone,

I have looked in the forum and did not find any specific answers to the question , how can i open a popup on the positive trigger of a PLC tag. i have tried writing a global script to iopen it, but it gives an error that UI open Popup cannot be called in such a way. and i assume Sheduler wont help either.

i use TIA 17 upd 5 , WinCC unified upd 5

Thank You!

Hi Wayse2!

Do you mean this?

Thank you for the reply . No, in my case i want to connect a PLC tag to open and close the Popup window instead of a click event . 

i saw somewhere that in the HMI tags one can also select events for particular tags aswell. it does not seem to work anymore.