Writing to a file and Reading from it "AT THE SAME TIME"

[aldoulif]

Hello,

If you have a vi (vi 1) that is generating and storing data to a file. Is it possible to write ANOTHER vi (vi 2) that reads & plots the data located at the same file (BTW, vi 1 will still store data to the file while vi 2 is reading the data)

All I am trying to do is to plot data that is generated from a different vi (vi 1) somewhat in "real time". Unfortunately, I cannot access the vi (vi 1) that is generating the data and add a diagram to it. I have to build my own separate vi (vi 2).  Is this possible?

Thanks in advance

[unclebump]

Once you open the file, you can't access it again until the original reference is closed. You might want to look at a functional global architecture. You use a case structure to determine how to access the data. Initialize, write, read, save are common examples of sections inside the functional global.

http://zone.ni.com/devzone/conceptd.nsf/webmain/D2E196C7416F373A862568690074C759