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WinCC Unified PC slow performance after a while of use

Created by: Celio_Goetten at: 10/10/2022 4:55 PM (8 Replies)

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10/10/2022 4:55 PM	Rate (0)
Celio_Goetten Advanced Member Joined: 4/25/2012 Last visit: 8/3/2025 Posts: 29 Rating: (11)	I'm using WinCC Unified v17 update 5 and after about a day or less of use without closing the browser the operation on them starts to be extremely slow. Computer resources (cpu, ram and disk usage) are all normal. Performing a refresh using the F5 function key makes WinCC return to normal performance. The behavior happens in both Microsoft Edge and Google Chrome. Has anyone encountered similar behavior?

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10/10/2022 5:22 PM	Rate (1)
Stefan Arcularius Platinum Expert Joined: 1/21/2013 Last visit: 9/11/2025 Posts: 4102 Rating: (633)	Hi Celio_Goetten, I know that there are still different performance issues on the WinCC Unified Systems. Without knowing your project in detail, we - the community - would not be able to give you some advice. Since everyone is interested in a WinCC System with good performance, it would be better to report your observations to Siemens, creating a new support request. Kind regards Stefan

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10/11/2022 7:11 PM	Rate (0)
Celio_Goetten Advanced Member Joined: 4/25/2012 Last visit: 8/3/2025 Posts: 29 Rating: (11)	Hello Stefan, I am in contact with Siemens here in Brazil. Regards

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5/10/2023 7:55 AM	Rate (0)
CharbelSaikaly Member Joined: 8/19/2019 Last visit: 8/12/2025 Posts: 1 Rating: (0)	Celio_Goetten Hello Stefan, I am in contact with Siemens here in Brazil. Regards Hello i am facing the same issue , is your problem fixed? And if it is what was the problem?

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5/12/2023 8:53 AM	Rate (0)
jofi Member Joined: 3/11/2012 Last visit: 8/18/2025 Posts: 33 Rating: (1)	I am using WinCC Unified version 18. Have experienced similar problems where the browser would "freeze" after running for a week or so. Problem reported to Siemens support, but have not received any solution.I had to make an alarm for the operator that forces them to restart PC after 6 days.

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7/18/2024 5:25 AM	Rate (0)
Lubomir B. Regular Member Joined: 6/6/2021 Last visit: 9/10/2025 Posts: 36 Rating: (2)	Hi all, I have also issue with slow performance WinCC Unified. For me it hleped to ackonvledge alarms. But after a while, it is again slow. Runtime v17 TIA portal v19 Best regards Lubomir
	Last edited by: Lubomir B. at: 07/18/2024 05:26:17
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7/18/2024 5:34 AM	Rate (0)
Ricor5 Regular Member Joined: 5/22/2020 Last visit: 7/8/2025 Posts: 52 Rating: (10)	Hi, When i started my own project i use for every screen a new 'screen', unified can't handle that properly. When i use one headscreen and use for all the others a 'window' the problem of freezing and slow performance after a while was gone. Maybe this can help you too.
	If this information helped, please use the Rate function.
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4/13/2025 3:41 PM	Rate (0)
Peter Doan Member Joined: 8/1/2022 Last visit: 7/17/2025 Posts: 2 Rating: (0)	I am facing the same problem. any better solution? please

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4/13/2025 6:38 PM	Rate (0)
Stefan Arcularius Platinum Expert Joined: 1/21/2013 Last visit: 9/11/2025 Posts: 4102 Rating: (633)	Hi Peter Doan, You will understand that such a simple question without further details can only lead to very general answers. So maybe using a much faster PC will help you, but I doubt that is what you want to hear, and maybe you are using a panel and not a PC, then this answer would be useless. So if you would provide much more detail, the change to get a useful answer will increase. However, I assume that the problem needs to be analyzed in detail, so sending your project to Siemens might help to get it analyzed. Kind regards Stefan

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