contitnuous playback?????

[Kianoosh Motallebi]

how can I playback the data that I have written in Express Write to File? When I try to do this I get a graph of the entire time domain. I want to record files and play them back later. What am I doing wrong?

[CoOpGuy]

Kianoosh Motallebi,

     I had a few questions about your post. 

What data type are you are you writing to file? 

What Express Write to File are you using? (Write to Measurement File?) 

By continuous playback I believe you want to read only a small portions of the data set at a time.  If this is the case we may be able to read the file and then enter a loop which displays smaller portions. 

[Kianoosh Motallebi]

Thank you.

I'm indeed using the Write to Measurement File express vi. What I want to do is observe the signal just as I would be doing realitime; but now as a recording. Sorry if I'm using unfamiliar terms; I'm very new to the labview environment.  The data type is lvm;

I am aqcuiring the signal with daqmx. It is a voltage differential signal.

When i put the read measurement file vi in a loop it doesnt work. I guess I want to use labview as a recorder (: Record the signal and play it back later)

Greetings

Kianoosh

[Matt Downey]

Kianoosh,

      I am not sure how you set up your VI or the type of indicator you were using to display your data.  Attached is a VI which writes a simulated signal to a LVM file and reads the LVM file when the user chooses.  The data is displayed using a Waveform Chart with Strip Chart update mode.  Let me know if this helps.

- Matt