A question about oscilloscope program

[多多]

Hello, 
it is my vi

The purpose is to catch the oscilloscope card waveforms and convert the value to handle
now only once grab one channel waveform
Oscilloscope card is NI-PCI 5105 has 8 inputs
As shown below, I want time to grab the multi-channel waveform
Like the following figure, allows me to choose the channel input of 0 to 7

how can I do it?

I use the NI-scope express VI at first

but this vi grab waveform data is too slow !

THANKS ALL~

[crossrulz]

First of all, I don't think you need to keep setting up your channel.  You should be able to move the setup VIs outside of the loop.  Only the Run and Fetch should be needed inside of the loop.

So to acquire more channels, you have to setup all of the channels.  Then for the channel list for the Fetch, separate your channel numbers by commas.  If you lookup the help for the Fetch Waveform, you will see a link to the syntax.