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Hello,

Ayoub EAUADEN

Hello,

I am experiencing a timestamp offset issue for tags between two PI servers: Historian (VDRSQLITKQ03) and View (VDRSQLITKQ02).

From PI SMT on the View server, the tag timestamps are correct. However, on the Historian server, the same tag shows a 9-hour offset.

Example:

On the View server, the latest value of the tag = 2 is timestamped at 29/07/2025 at 15:52:31,

whereas on the Historian server, the same tag at the same moment is timestamped at 29/07/2025 at 06:52:31.

Both servers have the same time zone.

 


View Server.png

Historian Server.png
 

Could you help me identify the cause of this offset and suggest a solution?

Thank you !

Ayoub EAUADEN

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    Thank you for your feedback and for pointing that out.

    You're absolutely right — the two screenshots were taken from different PI SMT clients, each running on a separate server (VDRSQLITKQ02 and VDRSQLITKQ03), which also happen to be PI Servers. My intention was not to suggest that the issue is caused by them being PI Servers, but simply to highlight that the same PI Point shows a 9-hour timestamp difference depending on which PI SMT client is used to view it.

    Both servers are synchronized in terms of system time and time zone. I have also verified the Time Zone settings and the Timestamp format on both servers, and everything appears to be correctly configured.

    To support this, I’ve attached an image showing the relevant settings.

     


    Time-Zone_HistServ.png
    
    Time-Zone_ViewServ.png

    Time-Format-Tab_ViewServ.png

    Time-Format-Tab_HistServ.png
    Would you have any suggestions or recommendations on what else I should check to resolve this timestamp offset?

    Thanks again for your help.

Reply
  • 0

    Thank you for your feedback and for pointing that out.

    You're absolutely right — the two screenshots were taken from different PI SMT clients, each running on a separate server (VDRSQLITKQ02 and VDRSQLITKQ03), which also happen to be PI Servers. My intention was not to suggest that the issue is caused by them being PI Servers, but simply to highlight that the same PI Point shows a 9-hour timestamp difference depending on which PI SMT client is used to view it.

    Both servers are synchronized in terms of system time and time zone. I have also verified the Time Zone settings and the Timestamp format on both servers, and everything appears to be correctly configured.

    To support this, I’ve attached an image showing the relevant settings.

     


    Time-Zone_HistServ.png
    
    Time-Zone_ViewServ.png

    Time-Format-Tab_ViewServ.png

    Time-Format-Tab_HistServ.png
    Would you have any suggestions or recommendations on what else I should check to resolve this timestamp offset?

    Thanks again for your help.

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