09-14-2015 02:28 PM
Hi,
I am trying to acquire signal from my NI PXI cards simultaneously but having some trouble to implement that.
Here is my setup:
Hardware setup:
1) NI PXIe-1071 chassis
2) Card - NI PXI 4461 - 2 I/P and 2 O/P
3) Card - NI PXI 4492 - 8 I/P
Below is the Acquisition code that I have written:
The issue is that when I use the I/P channels on the same card(4461 or 4492) then the code runs fine, but if I use the input channels on both cards simulataneously then I get an error message:
"
Error -200106 occurred at DAQmx Read (Analog 1D Wfm NChan NSamp).vi:
Possible reason(s):
Property must have the same value for all channels on this device.
Property: RefClk.Src
"
I have tried setting the Reference clock to "Onboard clock" but I still get the same error.
What should I do to reslove this issue?
Thanks,
Ritesh
Solved! Go to Solution.
09-14-2015 05:51 PM
Hi Ritesh
Have you tried importing a common ref clocks for the 2 boards? This is not supported by every device, but for the ones you are combining, this should be supported as you can see from page 44 in this document.
WenR
09-17-2015 12:19 PM
Hi WenR,
I looked at the documents you mentioned and also the synchronization example in NIDaqMx and that solved the issue that I was having.
-Ritesh
09-17-2015 01:54 PM