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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"Now with NOR-DAQmx 7.4 or higher, using simulated devices, you can develop, run, and troubleshoot data acquisition applications without going through the applicable material installed [...] A simulated NEITHER-DAQmx device is a replica of a device created by using the option OR-DAQmx Device simulated in the menu create new from MAX to a function or program without equipment. A device OR-DAQmx simulated behavior similar to a real device. Its driver is loaded, and use programs are fully verified... »
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You can read output simulated. The simulated device aims to offer the possibility to start the program without hardware; also with a simulation device, you can check if the syntax of your program is correct and check if the data you write meets the specifications for your motherboard.
You might find some useful information here:
http://zone.NI.com/DevZone/CDA/tut/p/ID/3698#toc3
Kind regards
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http://zone.NI.com/DevZone/CDA/tut/p/ID/4320
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