I am attempting to acquire data using one relatively new PC. I have 4 DAQ Cards.. NI PCIe-6323 (x3) and NI PCIe-6353
Each one is sampling data at 800Hz, the first card is reading 32 channels, the second 32 channels, the third 24 channels, and the fourth 4 channels.
I'm also using VISA to communicate with a USB device
I can simultaneously acquire data from 3 daq cards and operate the usb device
I can simultaneously acquire data from all 4 daq cards without the usb device
However, I can't acquire data from all 4 cards and operate the usb device simultaneously. In this configuration all the data is acquired from the daq cards before the operate signals are sent to the usb device. Also, when I acquire from 4 daq cards at the same time my status bar/wait timer does not update in real time.
Have I hit the limit of the hardware of the computer? Any suggestions about how to fix or debug this issue would be much appreciated