"labview no longer supports this VI"

[stage84]

Hello,

I am continuing a project made 3 years ago. The guy before me made a lot of VI for the project. My problem is with some VI, labview no longer supports them (like the open_creat_replace file.vi). I insert a picture of the block diagram.

I have already made some changes concerning the DAQ because now I am using DAQmx (He used the traditional DAQ). Does it exist a VI making the same for the data recording? the other problem I have is he recorded data in a file with the extension .SCL, is it still possible in labview 8.2? This point is important because I need a file .SCL for other VI.

Thanks a lot for your help, I have already tried to find the solution but without success...

Sophie

[MikeS81]

Hi Sophie,

your .scl file is only a binary file. It's still possible to create binary files.

Mike

[Danigno]

stage84,

under the "DAQmx - Data Acquisition Palette" you can find all the functions for the new DAQ acquirer. For understanding them you can use the "DAQmx Assistant" function and un-build it later by selecting "Generate NI-DAQmx Code" at its pull-down menu.

[stage84]

Thank you for your answer, I will try to write a binary file and I hope I willnot have to change a lot in the other VI.

[MikeS81]

Hi sophie,

maybe it's a text file, but this is also still possible.

Mike

[cheggers]

Hi stage84,

there's a good tutorial how to convert traditional DAQ code to DAQmx code:

Transition from Traditional NI-DAQ to NI-DAQmx in LabVIEW:

http://zone.ni.com/devzone/cda/tut/p/id/4342

I think this could be helpful for you!

Greetings,

cheggers

[stage84]

Thank you for the tutorial, I will compare with what I have. But my big problem in still in recording data in order to have the same kind of file the guy before me used... I tried to write in a binary file and a text file but it doesn't work... Now I am trying to write a spreadsheet file but it still doesn't work. Do you have any idea what is wrong?

I insert the VI taken from the NI example and the one I have to use to extract information from the acquisition before modification (Aha display6.vi) and with the modification in order to use the read spreadsheet.vi (display2.vi)

Thanks a lot for your help

[stage84 · Accepted solution]

I have finally found the solution by mixing examples and the VI of the guy before me. I am now writing in a binary file with the help of these examples: Cont Acqu&Graph Voltage- To File (Binary).vi to record my raw data and Graph acquired binary data for the beginning of my other VI to extract data.

Sophie