Expires on simulated device timer

A timer for a simulated device is supposed to never expire according to http://zone.ni.com/devzone/cda/tut/p/id/3698 under theTiming and Trigering considerations relating to the use of simulated devices where it is written "Watchdog Timers never expire."

However, simulated X Series USB-6343, who does not have a hardware timer, indicates it is expired after a check of the property expired DAQmx immediately after the dog start a timer job of guard.  The example attached Chan-Watchdog dig write Timer.vi, amended to include the property expired DAQmx shows this behavior when the device is a simulated device.

DAQmx 9.3, LV2010 SP1

Now run with DAQmx 9.4 with no time-out error.  Of course, a reboot was involved, and I don't remember with certainty if I rebooted since the time I first noticed this problem.  Maybe I should have done a reboot before testing with DAQmx 9.4 to ensure.

Tags: NI Hardware

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