When should Tasks be used in a DAQmx application?

[WGMres]

When should Tasks be used in a DAQmx application? In the case of sampling channels with similar timing and triggering?

Thanks.

[jgcode]

QUOTE (WGMres @ Feb 8 2009, 05:09 AM)

When should Tasks be used in a DAQmx application? In the case of sampling channels with similar timing and triggering?

Thanks.

I am thinking the correct answer here would be tasks are used every time.

Resource allocation and scheduling is done in DAQmx using the task state model.

http://zone.ni.com/devzone/cda/tut/p/id/4656#toc2' target="_blank">KB

[LAVA 1.0 Content]

A task will make sure that the channels will be read using the same clock.

I came to the conclusion that MAX is a great tool to manage DAQ configurations, it took me a while to get hooked but I love it.

Using global channels with scales and stuff, very easy to change a sensor, the only thing you need to do is adjust the scale!

Ton

[crelf]

QUOTE (Ton @ Feb 8 2009, 07:40 AM)

I came to the conclusion that MAX is a great tool to manage DAQ configurations, it took me a while to get hooked but I love it.

Then you're going to love it even more when you find out that you can (and arguable should) do all those good things in the project:

http://lavag.org/old_files/monthly_02_2009/post-181-1234120619.png' target="_blank">

[LAVA 1.0 Content]

QUOTE (crelf @ Feb 8 2009, 08:17 PM)

Then you're going to love it even more when you find out that you can (and arguable should) do all those good things in the project:

And the best thing of that feature is that you can add this 'Project task' to an installer!

Ton

[crelf]

QUOTE (Ton @ Feb 8 2009, 03:00 PM)

And the best thing of that feature is that you can add this 'Project task' to an installer!

:thumbup: You sure can!

[pallen]

QUOTE (crelf @ Feb 8 2009, 03:17 PM)

Then you're going to love it even more when you find out that you can (and arguable should) do all those good things in the project:

Interesting. I'm curious what the advantages are in adding tasks this way as opposed to using MAX.

[crelf]

QUOTE (pallen @ Feb 9 2009, 10:43 AM)

Interesting. I'm curious what the advantages are in adding tasks this way as opposed to using MAX.

I tried to come up with an intelligent list of the benefits of doing it this way, but it all came down to, well, your DAQmx settings are saved at the project level instead of the system level. The channel and task settings that would normally be in your system mce file are instead in your lvproj file - a much better idea IMHO.

[Shaun Hayward]

Are there advantages with this method (creating tasks in the project) over creating tasks at runtime using the DAQmx VIs?