Measure resistance for long time

[DMMbeginner]

Hi, I'm trying to measure the changing of resistance by using this program (picture 14). and I did use "Write to measurement file" which is not what I want. is that any good method to record the data?

I'm using LabView 8.5 + PXI 4072 

[RavensFan]

Open and Write to Text file.

Otherwise you'll have to give us more details of what you want if Write to measurement file is not what you want.

How fast do you want ot read it?  Write now your loop is running as fast as it can with no pacing.  The only thing controlling the speed is the time it takes the subVI's to execute.  If you run this for a long time, you are going to wind up with huge data files.

[DMMbeginner]

I want to read the resistance every 0.1 sec per sample. and the recording will be around an hour. I know this is not a good ideal since it will come out a huge data. but I still want to try it.  

[smercurio_fc]

But you haven't indicated what you don't like about the Write to Measurement File output file? Is it the format?

As Ravens Fan mentioned, you have to put some sort of timer inside the loop. Since you said you wanted to take a reading every 100 msec, then simply put a metronome inside the loop with a constant of 100 wired to it. Of course, this all assumes that the reading takes much less time than that.