I am measuring resistance changes using hp 4284A LCR meter. I want to monitor the changes continuously by drawing a graph.Can I?

[ihc]

I am measuring resistance changes in chip using hp 4284A LCR meter. The LCR meter is connected to the PC through IEEE488. I am using Labview 6.1 and window 2000. I want to monitor the resistance changes continuously and get a XY graph about it (the X-axis should be time as a unit of second). It should be also saved as an excel file. Please help me to do this work. I appreciate any help.

[CoastalMaineBird]

You might consider a chart, instead of an X-Y graph. You don't need to supply an x-axis array, if your samples are evenly spaced in time.

A chart gradually (or rapidly) moves from right to left, with new values appearing on the right, and old values disappearing off the left side.

This sort of thing is what LabVIEW was designed for. What specifically, are you having trouble with?

[Al_S]

If you use a waveform chart, you can plot one point at a time. You can also write to excel one point at a time.
Look at a couple of examples that shipped with LabView 6.
Cont Acq&Chart (immediate).vi uses AI Scan functions to get its readings. You'll probably use GPIB commands to your LCR meter, but you can see the flow you need.
Write Table To XL.vi opens a spreadsheet, labels rows and columns, then adds data in a loop. When you get to the Add Data loop, that's where you'll be taking your LCR measurement, plotting it to the chart, and writing it to excel.
To find examples, from any LabView window goto Help >> Find Examples >> Search. In the box labeled Type a keyword to find, enter chart for the chart example or excel for the excel example.