3/2/2015 3:57 PM | |
Joined: 11/29/2011 Last visit: 8/19/2024 Posts: 1359 Rating: (232) |
Hi, Have you seen this link: http://support.automation.siemens.com/WW/view/en/26283062 |
- What you read here, please check with manuals and your requirements. |
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3/2/2015 9:43 PM | |
Joined: 11/29/2011 Last visit: 8/19/2024 Posts: 1359 Rating: (232) |
Hi, Usually In Wincc we configure the Tag Logging to store the tag values in there. When the operator wants to see tag value in the past, he simply pull the rules to the right time. Anyways it is using the default trend display in Wincc. Which is not what you need. So as you want to read out the actual tag value in the past, you need an interface to the SQL database. I never tried this but seems to have the way there is a way around. Have a look at WinCC/Connectivity Pack V7.3 under chapter "3.4.5.1 Displaying Process Value Archives" to see how to read out data. Just as a background info I found this: What options are there in WinCC for read and write access to TagLogging/AlarmLogging archives? Please keep us posted! I hope I could help! |
Last edited by: MicroMan at: 3/3/2015 7:28:45 AM- What you read here, please check with manuals and your requirements. |
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3/3/2015 8:27 AM | |
Posts: 457 Rating: (46) |
Hello, there is a FAQ existing which shows how to create/open/fill/work with a SQL database in WinCC. Please search for: How do you access an SQL database in WinCC Runtime Advanced using a script? Maybe this link works: https://support.industry.siemens.com/cs/#document/61883659?lc=en-WW Best regards Georg |
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