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WinCC Unified Web Control for CPU Web Server

Created by: hill831017 at: 9/3/2024 12:56 AM (5 Replies)

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9/3/2024 12:56 AM	Rate (0)
hill831017 Regular Member Joined: 8/3/2016 Last visit: 9/3/2025 Posts: 13 Rating: (0)	Hello, Problem to show CPU web in WinCC Unified Web Control: TIA V18 Upd.2, CPU 1517F V2.9 by PLCSIM Advanced V6.0 use TCP/IP Adapter, HMI PC. CPU web able to display in normal browser. With WinCC Unified Web Control： When use Tag assign IP to URL -> Refused to connect When use Tag assign user:pw@IP to URL -> Show gray background Please find below screen shot for detail. Any suggestion? THX

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9/9/2024 6:49 AM	Rate (0)
Murof Platinum Expert Joined: 8/3/2009 Last visit: 9/5/2025 Posts: 16349 Rating: (1931)	Hello hill831017 Do you use a Unified Panel or Simulation/PCRT? In Panel it works but in PC RT I think there is the problem/issue with the iFrame so its a webserver in a webserver...and I think in this combination it does not work I´m not 100% sure if there is a workaround or another possibility... Bye Murof
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7/9/2025 5:36 PM	Rate (0)
ThanosMrtds Joined: 2/11/2024 Last visit: 7/23/2025 Posts: 22 Rating: (0)	Hello! @hill831017 did you manage to find a solution to access the web server using web control? Because I face the same problem and any additional information would be helpful Thank you in advance

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7/18/2025 2:21 AM	Rate (0)
hill831017 Regular Member Joined: 8/3/2016 Last visit: 9/3/2025 Posts: 13 Rating: (0)	Hi, My solution is in PC RT->Open a new Page, MTP RT->Open Web Control. Here is the reference code. export async function ExternalDiagScreenOpen(URL, FG, WindowsOS) { if (WindowsOS) { HMIRuntime.UI.FindItem("/swDetailScreen/cwcExternalDiag").openNewTab("https://" + URL); HMIRuntime.UI.FindItem("/swDetailScreen/cwcExternalDiag").Properties.TabTitle = 'Redirect to' + FG + ' ' + URL; } else { const po = HMIRuntime.UI.FindItem("/swExternalDiag"); if (typeof po == "undefined" ) { HMIRuntime.UI.SysFct.OpenScreenInPopup("swExternalDiag", "1010_ExternalDiag", false, "", COffsetL, HHeight + CSpaceT, true, undefined); //Screen window below header with lable const poAF = HMIRuntime.UI.FindItem("/swAlarmFull"); const poDiag = HMIRuntime.UI.FindItem("/swExternalDiag"); poDiag.WindowFlags = 85; //1-Show title, 4-Always on top, 16-Can move, 64 - Can close poDiag.InteractiveZooming = false; poDiag.ShowFocusVisual = false; poDiag.CaptionColor = Color.Style.Caption; poDiag.Caption.Text = "External Diagnostic - " + FG + ' ' + URL; poDiag.Caption.Font.Size = 12; HMIRuntime.Timers.SetTimeout(() => { HMIRuntime.UI.FindItem("/swExternalDiag/wcExternalDiag").Url = "https://" + URL; }, 200); } } }

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This contribution was helpful to 1 thankful Users Moderator_Lan

7/24/2025 12:34 PM	Rate (0)
AutoGen_4137113 Member Joined: 11/16/2020 Last visit: 7/24/2025 Posts: 1 Rating: (0)	Dear hill831017, At the moment, I’m encountering the same issue you experienced. I’m working with a MTP700 Unified Basic Panel, and the Web Control page crashes after logging in (grey screen, illogical page layout, and sometimes just a mess of pixels). I’d like to know more about the script you shared. Specifically, I’m curious about where exactly you placed it. Is it linked to a screen event (such as "Loaded"), or somewhere else in your project? Also, what exactly is `"1010_ExternalDiag"`? And what does "`FG"` stand for? Hopefully, you can help me get a bit closer to a solution. Thank you in advance! Best regards, VRIA

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8/13/2025 3:03 AM	Rate (0)
hill831017 Regular Member Joined: 8/3/2016 Last visit: 9/3/2025 Posts: 13 Rating: (0)	AutoGen_4137113 Dear hill831017, At the moment, I’m encountering the same issue you experienced. I’m working with a MTP700 Unified Basic Panel, and the Web Control page crashes after logging in (grey screen, illogical page layout, and sometimes just a mess of pixels). I’d like to know more about the script you shared. Specifically, I’m curious about where exactly you placed it. Is it linked to a screen event (such as "Loaded"), or somewhere else in your project? Also, what exactly is `"1010_ExternalDiag"`? And what does "`FG"` stand for? Hopefully, you can help me get a bit closer to a solution. Thank you in advance! Best regards, VRIA I use a button open a new screen in popup, in the screen I already create a web control, and the script above use to assign the new screen property and set the web control URL. I guess you issue might be somehow related with http/https site. Web control only allow https URL.

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