02-15-2012 06:43 AM
Hi. I'm using the NI RFSA phase coherent multi channel example VI. How does the record option works? I can't quite figure out how to record waveforms properly and how to look at these recorded waveforms. Sorry, NI is still new to me. Thank you.
Solved! Go to Solution.
02-16-2012 01:16 PM
The example that you're working with allows you to record a signal that you acquire to a file and then use that file for playback generation. According to the block diagram, the Record button causes the VI to enter a Record state and streams acquired data to your disk in an XML file. This file should be saved at the location specified by the Recording Folder Base Path control. From there, you can open the generation project and use that file in Playback mode. But the data for the waveforms you acquired should be stored in those files. Does that help answer your questions?
02-19-2012 08:44 AM
Hello! Thanks for replying. I've tried to specify an XML file at the Folder Base Path control but an error occurs. It says something like "LabVIEW General error". What could be the reason for this?Thank you
02-21-2012 11:18 AM
You mentioned specifying a file, but the VI wants a folder. When the window prompt asks you to locate the file, use the Current Folder button in the bottom right to give LabVIEW the folder destination instead. Also, please always be as specific as possible with error messages so we have a better understanding of your issue.
02-24-2012 12:08 AM
Hello Kyle. Thanks for your help! I was already able to record my waveform. Now my problem is generating the waveform in playback mode. Is it right to specify the RECORD METADATA (xml document)? 'Cause when I'm doing this an error says that XML value text is illegal or out of range for type and/or format. The screenshot of the error is attached. Thank you!
02-27-2012 08:57 AM
Hello! I have additional question. To regenerate the recorded waveform, where should I really specify the XML file? Is it in the 'Data File Path' or in the 'Record.xml File Path'? I attached the front panel picture. Thank you!
02-27-2012 08:38 PM
Looking at the block diagram it is going to be the latter, Record .xml File Path. Look at case 22 of the case structure.
Vimal Fernandez || Applications Engineer || National Instruments || (512)683-1781 || Vimal.Fernandez@ni.com
02-28-2012 02:03 AM