5/25/2011 9:34 AM | |
Posts: 1530 Rating: (59)
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Hello ddg, I don't know, whether I see your problem right, but I suppose that the behaviour you describe could happen because you export multiple trends with separate time axes displayed in the WinCC Online Trend Control. Inthis FAQyou'll find further explanations. If I shoud be on a wrong track, please let me know and we'll think about something new. Best regards Bizur |
5/25/2011 9:44 AM | |
Posts: 261 Rating: (42) |
Bizur, Thanks for the reply. If you see the attached file we have same archive data. We give different time inervales ane the time stamps are different with different values. Every case the file size are same. Means if we save long period data we will not get proper values for same intervals.
AttachmentData.zip (330 Downloads) |
5/25/2011 12:12 PM | |
Posts: 261 Rating: (42) |
Please find the attached pictures for tag logging where we used 500ms and for data save. What I studied in csv the time stamp is different from acquisition cycle of tag logging. If we can set the time interval constant in csv file or if you have any idea the issue can be solved. For self program only I put the start and end time by HMI so those operators don’t have to enter in different trend pages. But I think which have no issue with data cycle. (Also I tried with Win CC default time setting option but the result is same). Another thing if you can tell me the option to take data directly from SQL data base we can proceed further. Regards AttachmentPICTURE.zip (305 Downloads) |
5/25/2011 2:21 PM | |
Posts: 1530 Rating: (59)
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Hello ddg, first I send you a FAQ for some info concerning your new question. Concerning your main question I still have a problem with it. You sent me a screenshot of the area you want to store, but I miss the according CSV-File. I have to leave office now. Maybe you could send me the missing file till tomorrow. Best regards Bizur |
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