File Permission Error 8

[pmaechler]

When I open two DataStorage-Files and then close both, I can no longer delete the first opened TDM-File because of "File Permission Error 8". This Error occurs only if I open a second TDM-File. I've to have both files open at the same time, because I copy some channels from one to the other TDM-File.  What's wrong in the attached code?

[Andre_Saller]

Hello,

I tried your VI on my machine, and I don´t see an error (yes, I activated the second structure, so that two files are opened.) I am using LabVIEW 8.0.1 Which version are you using? Maybe its an issue fixed in the latest version.

[pmaechler]

No, I'm also using LabVIEW 8.0.1. But if you don't get an error in this VI, there's something wrong with my computer.

Thanks, Patricia

[Jarrod_S.]

You can breathe a sigh of relief. You're not the only one. I can reproduce the error as well. That being said, this is error is supposed to happen. You can't have more than one TDM file open at a time. To copy channels from one TDM file to another, you will need to load the data into memory from the source file, close it, then write it to the target file. If this becomes too memory intensive with large channels, try writing to an intermediary non-TDM file, such as a LabVIEW datalog file.

[pmaechler]

OK, I will copy the channels in a datalog file. Thank you for your help.

Regards, Patricia