WinCC Unified: Open Faceplate PopUp only once

Опубликовано: 14 Май 2026
на канале: DerHecht4.0

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In this video I will show how you can limit the PopUp numbers to once by saving the PopUp names in a Map () object. By default, you can open unlimited PopUps

00:00 Intro
00:12 Problem
00:36 Limit to one PopUp per Screen
01:29 Limit to one PopUp per Faceplate instance
05:04 Limit to one multiple PopUp per Faceplate instance
07:15 Limit multiple PopUp per Faceplate instance

solution from Ignat (I have modified it a little for this video)

https://support.industry.siemens.com/...

to store the PopUP names I use the Map() object

https://www.w3schools.com/js/js_objec...

//global definition
const FaceplateInstanceName = new Map();

function createPopUp (OpenPopUpCall, Objectname){
let ui = UI;//workaround to adress UI objects
let count = ui.PopupScreenWindows.Count;//count all open Popup in the screen
let fpExisits = false;

for (let i=0; i ""smaller-than sign" count; i++){
let name = ui.PopupScreenWindows(i).Name;
if(FaceplateInstanceName.get (name) ==Objectname){
FaceplateInstanceName.delete(name);
ui.PopupScreenWindows(i).Close();
fpExisits = true;
break;
}
}

if (!fpExisits){
let po = OpenPopUpCall();
po.Left = Faceplate.Parent.Left +200;
po.Top = Faceplate.Parent.Top;
po.Visible = true;
FaceplateInstanceName.set (po.Name, Objectname)
}
}

//function call
createPopUp (()="Greater-than sign" Faceplate.OpenFaceplateInPopup("YourFaceplatePopUp", Faceplate.Parent.Name, true, false),Faceplate.Parent.Name+item.Name);

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