pause button on the front panel

Hello.

I try to run synchronous, continuous analog conversion of 2 cards of PXI-6259, and capture the State of the several digital at the same time.  I managed to get everything is configured and working properly, however I have a problem if the user presses the button "pause" on the front panel.

From what I can tell, acquisitions of data will continue to run in the background (I'm using a task DAQmx and stop was never called).  For my analog inputs, this is not a problem.  However, the digital inputs always generate a ' 200010 - on-board memory overflow error. Due to the limitations of system and/or the bandwidth of the bus, the driver could not read data the device enough fast to follow the flow of the unit. »

Is it possible to register for an event of user interface that is generated when the user presses the button "pause", so that I can stop the acquisitoin of data before the error occurs?

Thanks in advance,

-Rich

NormPgh wrote:

I thought to add my own button "pause" / control, but my users have become accustomed to hitting the pause on the front panel button, and it will be difficult to get them to change.  I guess that the error would remind them :-)

Well, that's easy to fix - change the appearance of window properties if the toolbar is not visible, while the code runs, and there will be a pause button for your users to click.

Many of our applications have a function somewhat like this.  My colleague implementation in a very simple way: he put the graphical indicator within a box structure.  Connect a Boolean control "pause" to the structure of the case, and that's it.  Data acquisition runs constantly but will only update the chart when the pause button is false.  This approach might work for you?

Tags: NI Software

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