Labview PDA chart stops updating.

[Racer351]

I'm using labview PDA 8, a toshiba PPC and a cf-6004 card. I am reading an analog voltage, showing it on a chart in strip chart mode and then writing the data to a csv file. (One sample per second)

The problem is that after a while the chart plot stops updating.

I've done some troubleshooting. I changed the chart scale and it still stops at the same point. (about 1/5 of the way across the chart)

If I set the chart scale to 3600 it plots about 700 or so, If I set it to 60 it plots about 12, 10 plots 2 etc etc....

But it continues to write correct data to the csv file.

I could use some expert help if anybody has any ideas.

[Chris_Cilino]

Racer351,

What is your chart history length set to (right click on the graph and select chart history length)? Are you able to see the application work correctly on the PDA emulator in the LabVIEW development environment? Are you using any shift registers? If you'd like, post your code so we can take a look. Thanks!

Chris C

Applications Engineering

National Instruments