multi channel data acquisition using DAQ Assistant for pci 4472

[SAJID HUSSAIN]

I am using PCI-4472 data acquisition card for data acquisitioning.I found few examples on NI form.my problem is this i want to take multi channels data using all channels simultaneously using DAQ Assistant in Visual Studio C# .Example on shows data acquisition from a single channel.How can i get data from all channels at once.Example shows that a virtual channel is created .How can i create many virtual channels?

[PBear]

Hi Sajid,

It looks like there is a duplicate post on the LabVIEW board. When dealing with hardware it's prefered to post to the Multifunction DAQ board or a more specific hardware board. For example since you are using a DSA product, you would get the best response from the Dynamic Signal Acquisition board. But that's just for future reference.

I'll let the other post do the explanation of included examples but I would like to point out that to acquire from multiple channels in one task, simply put a colon and then the span of the channels. For example Dev1/ai0:3 will acquire everything on the first four channels with the same timing. Also, the DAQ Assistant is not available in C# but you can setup tasks in MAX before hand and then call them. You an also create Global Virtual Channels in MAX and refer to these when creating your task programtically in C#. These two options (configuring in MAX) will give you the ability to have muliple channels in a more graphical environment.

Please post any responses to the original thread (which I have posted to as well).