stevennoppe
Member
I can't seem to find much information on the trend view object of WinCC from Siemens.
I know that I can write to an Access database file, but I have a few questions about it :
1) Does Wincc write the data unlimited to the file? Will I for example be able to look at data from say a year ago? (I'm not sure because "the number of data records per log" is maximum 500000.)
2) Can I search for a specific date in the history trend view with the help of VB scripting? If so, how do I do this?
thanx in advance for any help
I know that I can write to an Access database file, but I have a few questions about it :
1) Does Wincc write the data unlimited to the file? Will I for example be able to look at data from say a year ago? (I'm not sure because "the number of data records per log" is maximum 500000.)
2) Can I search for a specific date in the history trend view with the help of VB scripting? If so, how do I do this?
thanx in advance for any help
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