01-20-2009 09:21 AM
Hi folks,
I have Labview on OS X here connected to a USB-9234. I'm just thrilled to see this hardware supported on OS X; NiDAQmx Base works great with it. However, I can't for the life of me figure out how to set the AC/DC and IEPE settings. I noted that the readme file references these coupling parameters as "properties". How do I set properties for this device? Any general pointers would be deeply appreciated.
Regards,
Tom
Solved! Go to Solution.
01-20-2009 10:08 AM - edited 01-20-2009 10:09 AM
01-20-2009 10:21 AM
Wow, perfect! Thank you!
Tom
02-13-2009 03:39 PM
Tom, thanks for your help on this topic. I am trying to do the same thing via standard DAQmx on a Windows machine with LV 8.2. I can't seem to find the directory and VIs you are referencing. How do I accomplish the 9234 coupling/IEPE configuration?
Thanks
02-13-2009 03:59 PM
Hi jojojojojo-
In NI-DAQmx you have access to LabVIEW property nodes that will give you the same configuration options.
Find the DAQmx Channel Property Node on the DAQmx Advanced palette in LabVIEW under I/O Constants and Property nodes (or or something similar...I don't have DAQmx installed on my machine currently).
You can navigate to Analog Input:General Properties:Input Configuration:Coupling and Analog Input:General Properties:Signal Conditioning:Excitation:Source to set the same properties in DAQmx
02-17-2009 01:27 PM
Tom,
Thanks for your help and sorry for hijacking this thread. Adding that property node does allow me to select AC or DC coupling for the 9234. However, it does not seem to work for IEPE excitation. Setting the "AI.Excit.Src" property to "internal" does not seem to activate IEPE. Also, when trying to create a VI with DAQ assist, the exictation is not an option for the 9234. I am running LV 8.2. Any ideas?
Thanks!
Josh
02-17-2009 01:43 PM