Labview 5.0 crashes after 0.678h of measuring time

[Christina]

I have Labview 5.0 installed on a Pentium 2/300 with 128 MHB RAM. I use the system for test rigs. I use a I/O card with 9 analog inputs, 1 analog outputs an 2 digital channels. Up to now my system worked good. Only when I used big buffers or high data rates I had some memory problems. Since 2 day I have big troubles:
After about 0.676 hours of measuring time Labview crashes with the following error
"LABVIEW caused an invalid page fault in module Labview.exe at 014f:0063e117.
Registers:
EAX=00000003 CS=014f EIP=063e117 EFLGS=00010246
EBX=00000951 SS=0157 ESP=00a0f490 EBP=00a0f4b8"
and so on.
I use a second porgram which needs mor memory and which has to make a lot of calculations. There, when I start the mes
urement, Labview crashes. Also this problem emerged 2 days ago.
Can somebody help me?
Memory ist ok. I changed it.

[Randy_H]

Christina,

It sounds like you have answered your own question. You had errors while doing high acquisition rates. Now you have taken processor time away from a program that was probably working fine, but only because it had all of the processor time. Try adjusting you rate again. You could alwyas upgrade the computer with a faster processor.

To debug, please set breakpoints to narrow down where the page fault is happening. It sounds like it is coming from a hardware call, but we should make sure. (Are you using the latest versions of LabVIEW and NI-DAQ?) Once we have it narrowed down to a particular VI, we can go into that VI and do more debugging. Please do this until you reach a node (yellow in color), a CIN, or Call Library Function.

Randy Hoskin
Applica
tions Engineer
National Instruments
http://www.ni.com/ask