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The VI Logger to LabVIEW SignalExpress Data Converter Tool does not Store Files to the Correct Location.

Primary Software: LabVIEW Signal Express>>Development System
Primary Software Version: 1.0
Primary Software Fixed Version: N/A
Secondary Software: N/A

Problem:
When I run the VI Logger to LabVIEW SignalExpress Data Converter Tool, the tool finishes executing and tells me where the files are stored.  When I go to that directory, the files are not there.  What is causing this and where are my files?

Solution:
The files are not being saved anywhere because there is either a conflict with your LabVIEW SignalExpress settings or the file path is too long. 

The VI Logger to LabVIEW SignalExpress Data Converter Tool works by creating a project in LabVIEW SignalExpress and running that project to convert the data.  In SignalExpress, if the option "Store log files next to project file" is enabled, the data will not be stored at all.  When this option is enabled, SignalExpress tries to store the data to the same directory as the current open project.  Since this project is created by the converter tool and is never actually saved, SignalExpress does not know where to save the file and therefore never does save it. 

The converter tool does not know this and thinks the data was saved successfully, so it does not display an error message. 

To see if this option is enabled on your machine, follow these steps.

  1. Open LabVIEW SignalExpress.
  2. Select Tools»Options from the menu bar. 
  3. In the Options window, go to Logging. 
  4. At the bottom there will be an option named Store log files next to project file. Make sure No is selected for this option. 

There is a Microsoft Windows limitation that can also cause this behavior.  The file path must be less than 255 characters long.  If the log name that you are trying to covert is too long, then the resulting file path may be too long and the files will not be successfully created.  In this case, there will not be any errors reported. 

One way to work around this is to change the location that the files are stored to.  To do this, there is a .ini file that needs to be changed.  The .ini file is located at Program Files\National Instruments\VILoggerToSE.  Open the .ini file in a text editor program such as notepad and append DefaultDataFileLocation=InsertPathHere to the bottom of the document. 

The converter tool will append folders to the end of the specified directory  For example, if you use DefaultDataFileLocation=C:\Data\, the files will be stored to C:\Data\SignalExpressData\TaskName\LogName, where TaskName and LogName are dependent on the file you are converting. 

Related Links:
Developer Zone Tutorial: Migrating Data from VI Logger to LabVIEW SignalExpress

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Report Date: 04/07/2008
Last Updated: 04/11/2008
Document ID: 4K6F4DQN

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