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LOAD TREND DATA FROM ARCHIVE

Created by: Fereidoon at: 2/21/2021 8:56 PM (1 Replies)

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2/21/2021 8:56 PM	Rate (0)
Fereidoon Regular Member Joined: 5/3/2016 Last visit: 1/14/2026 Posts: 5 Rating: (0)	Hi Dears, I am going to load trend data from archive, I don't know how can I do that. My trends are always in online mode. I found below sentence in siemens manual, but I don't know how to do that. "Since online tags are not stored in the system database, no historical values can be displayed. The online tag values displayed in the trend window are only stored while the trend window is actually open." Also I cannot make any changes in my trend view such as bold trend line or any access which I had in WinCC online trend control>properties.

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2/22/2021 2:30 PM	Rate (0)
bg2492 Posts: 7298 Rating: (2188)	Hello Fereidoon, you can not export online data from the Trend-Control, you need to archive the Trendcurves. see manual "SIMATIC HMI WinCC V7.5 SP1 WinCC Information System" Basics of Process Values Archiving https://support.industry.siemens.com/cs/ww/en/view/109772961/111852755211 When you have archived the Trendcurves, you can export the data from the archive, see Application example "Export of archive data using the SIMATIC WinCC/Connectivity Pack (OLE DB Provider)" https://support.industry.siemens.com/cs/ww/en/view/38132261 Regards Georg Berghof
bg2492 Posts: 7298 Rating: (2188)
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