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How can I access archive data from a specific time

8/4/2021 9:00 AM	Rate (0)
AutoGen_8734514 Member Joined: 7/6/2021 Last visit: 6/7/2024 Posts: 2 Rating: (0)	I want to show the value of a certain Tag from x minutes ago, every minute. So an output that shows me the value of something a certain time ago (so that this time corresponds to the measurement of the product before it was treated a certain way) My idea is to somehow access it's value in the Tag logging but I have no idea how to even start. I imagine a C or VBS line that says something like (Pseudocode): PastValue=ShowPastTagValue("TAG";X) return PastValue Where X is a timestamp or a number of seconds or minutes ago. I guess it is more complicated than that but I have no idea how to start.

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8/4/2021 9:29 AM	Rate (0)
bg2492 Diamond Member Joined: 5/16/2014 Last visit: 9/12/2022 Posts: 7298 Rating: (2188)	Hello AutoGen_8734514, If you would like to export archivedata from Taglogging by script, have a look to the 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
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This contribution was helpful to 1 thankful Users AutoGen_8734514

8/4/2021 10:45 AM	Rate (0)
AutoGen_8734514 Member Joined: 7/6/2021 Last visit: 6/7/2024 Posts: 2 Rating: (0)	Thanks for your help. So this is not possible without buying the Connectivity Pack which is probably overkill for my very limited application. But good to know!

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8/4/2021 12:31 PM	Rate (0)
bg2492 Diamond Member Joined: 5/16/2014 Last visit: 9/12/2022 Posts: 7298 Rating: (2188)	Hello AutoGen_8734514, you do not need to by a license for the Connectivty Pack Server, for using these scripts on a WinCC-PC. The WinCC OLE DB Provider is installed with WinCC, because it is used by WinCC themself to. Regards Georg Berghof
	PS: If this post did really help you, you may use the Rate-button
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