Lewis Drake [EMAIL PROTECTED] wrote:
The problem was caused by a new XP feature that periodically updates the
system time clock automatically at scheduled times. If you open the Windows
XP Time and Date Properties (right click on the computer's time display) you
will see a new tab there called Internet Time. You may adjust the time
update schedule or disable updating there. I'm posting this to alert you to
a potential to be a problem if you are writing any LabVIEW program that
assumes monotonic timestamps.
The Logos Time Service (part of Lookout and LabVIEW DSC) does a more intelligent
time adjustement by gradually adjusting the time of your system clock to prevent
non-monotonic jumps in your local time history.
Most modern and real Internet Time Service clients do that too or have at least
an option to enable that.
You don't need XP for that though. Earlier Windows versions can have that option
too, only you will probably need to use the command shell and the net time /setsntp
command to enable and configure the service.
Rolf Kalbermatter
CIT Engineering Nederland BVtel: +31 (070) 415 9190
Treubstraat 7H fax: +31 (070) 415 9191
2288 EG Rijswijkhttp://www.citengineering.com
Netherlands mailto:[EMAIL PROTECTED]
