I am using a DAQCard-6024E on a 120MHz Pentium desktop running Windows 95 and LabVIEW Run-time 6.1. To duplicate the problem, I built an executable for the Acquire N Scans example and entered Channels 3:0, Number of Scans 1000, Scan rate 20000, and clicked Run Continuously. It works fine for an hour or so, (with occasional timeouts), but then the signal changes to identically zero (no noise and no error messages). After this, the only way I have found to get it going again is to power down the computer or hot unplug/plug the DAQCard-6024E. Re-booting without turning off the power does not work. I have been using the same DAQCard-6024E on another (much faster) computer running Windows 98 and never seen this problem.
What is the cause of
this problem and what can I do about it?
