Cannot undo the Trigger on DAQmx task configuration

Hello

I'm running into a DAQmx problem where the type of trigger for departure does not properly get sent to the material in the case following (using X with DAQmx 9.5.1 series):

1 set up and run an output meter task finished with a trigger digital start (I have not tested other channel or other types of triggers).

2. stop the task before a trigger is sent to hardware (I have not tested what happens that if you send the trigger first - hardware in my real application, the task is redeclenchables anyway).

3 try to configure the task to use no trigger to start and start the task.

4 do the trigger type queries in the software at this point says 'none', but the material is still configured to use the trigger to start.  It seems to be a way to configure the hardware to do not use the trigger at this point.

It is an embarrassment to me because I would have liked to keep the same task autour handle, but in order to switch between the modes of trigger and no trigger I have to erase the task completely and re - initialize everything that's embarrassing for me since in my application, I have at least 2 son can stop the task and I can provide is no longer simply the task manage for each thread during the launch it.

A simple way to reproduce the problem, just try to start the VI below:

You can tell that the trigger is always configured as none pulse is generated, and the loop is not closed until a trigger is provided on PFI0.  Re-reading the trigger type using a property node you find it inconsistent with what really material.

I don't need really workaround (I should be able to lead a myself who is to clear the task each time that trigger properties are task parameters changed and storage myself rather than relying on DAQmx) but I wanted to just report it as a bug.  The solution is, but it adds a lot of complexity to my request and is as ineffective as it is clearing unnecessarily and re-creating a task.

Best regards

Hey John,

Good to hear from you.

I've reproduced the problem and filed the application of Corrective Action (365307) to follow up the matter.

Thank you.

Tags: NI Hardware

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