9/29/2006 7:45 AM | |
Joined: 10/13/2005 Last visit: 9/3/2024 Posts: 33 Rating: (3) |
Your problem with the hysteresis 0,0% tag that has no value (has never changed) might be the same problem I had when using the conn. pack to get alarm archive values. I found out that the WinCC OLE DB driver "errors out" when the result dataset is empty (instead of just returning an empty dataset). The error situation was diagnosed by the Siemens Conn. Pack developers and they found an error in the conn. pack. They then sent me a Hotfix (Hotfix 5) and I verified that the problem was fixed. This hotfix isn't yet available to the public but will be in the next service pack of WinCC. More info on the problem here: /tf/WW/en/Posts/3788 |
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