daq card 1200 channels in labview

[Alias1978]

I am trying to use a Daq Card 1200 (to some level of frustration).  I am having an issue seeing the channels when I run a Vi in labview.  Only the first channel is available.  Everything is properly configured in MAX, I only get one channel in the VI though.  Any suggestions? 

[Dennis_Knutson]

Can you explain exactly what you mean by 'get only one channel in LabVIEW'? Do you only have one channel listed in the channels to scan or are you having trouble with displaying the results of an acquisition? If it's displaying the results, you need the correct function to acquire multiple channels (i.e. AI Sample Channels and not AI Sample Channel) and you need the correct type of indicator to display multiple channels (i.e. a graph). Can you post your code?

[Alias1978]

I am trying to configure the AI multi point sub VI.  Looking at the sub VI there is an option to select channels, when I click the tab for the drop down on this it gives me the option to browse for channels.  Clicking on this brings up a window where I would expect several channels to be available, there are none.  I haven't even gotten to the point where i record data.  Eventually I want to record two channels and then display them in an XY plot.  I would like to compare a pre test XY plot to a post test XY plot.  In particular I need to ensure that deflection matches at two specific loads, 35N and 200N.

[Dennis_Knutson]

It has been a very long time since I've used the old DAQ driver and on't remember the browsing options. Have you tried simply entering the channel list into the control. I believe the syntax would be nothing more than 0,1 for channels 0 and 1.

[Alias1978]

When I try entering 1 for channel 1 and run the App it defaults back to 0.  Is there something else that I should do in MAX to make this work?

[Dennis_Knutson]

I have no idea why your channel would be changing. I can't find a VI of the name you are using. Where did it come from? Is in on the traditonal DAQ palette that you have or is it one of the shipping examples?

Please post your code.

[Alias1978]

I have opened a new VI for traditional NiDaq.  Acquire N Scans.  This seems to be working now.  I have 2 channels now available.  The other VI that I am using has been modified and this may be part of the issue.  I am not sure on how to post the code. 

This one doesn't show the data real time though.  In the application that I am working on I would like to be able to watch the force applied and check that it follows the proper slope.  (by overlaying the desired slope)?

Then, after the data is taken I would like to compare the plot to a plot taken pre test.  This would be done in XY as it is force vs travel.  The two plots should be overlaid for a comparison.  Displacement at two specific loads should also be compared for the final assessment. 

Any suggestions?     

[Dennis_Knutson]

Right below the message body is 'Add Attachments'. Click that and browse to your VI.

Are you calling the DAQ function in a loop?

[Alias1978]

Here is the VI that I was working on.