From 11:00 PM CST Friday, Feb 14th - 6:30 PM CST Saturday, Feb 15th, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
From 11:00 PM CST Friday, Feb 14th - 6:30 PM CST Saturday, Feb 15th, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
01-21-2013 12:52 PM
Hi everyone
According to NI instruction for verification procedure of Pxi4330 , I need to "Disable shunt calibration for the channel using the DAQmx Channel property node, which you can find on the Measurement I/O» DAQmx - Data Acquisition LabVIEW palette. Select the Analog Input»General Properties»Signal Conditioning»Bridge»Shunt Cal»Shunt Cal Enable property." but I can not select this property I mean there is not property such that ?
Does everyone know what is the problem ? I wasted 3 hours to solve this silly problem,,,still can't find it.
when I choose property node , analog input, general properties then there is two option which is not the answer.
plz help me over this
thanks
Solved! Go to Solution.
01-21-2013 01:18 PM - edited 01-21-2013 01:23 PM
Hi Eric,
Do you have a PXIe-4330 installed in your system? There are a LOT of properties for various devices, and to help avoid confusion for properties that do not apply to you, DAQmx tries to hide properties that aren't applicable to any devices in your system. If you don't have a PXIe-4330 installed (or a simulated PXIe-4330), then the property you're searching for won't appear by default. To find it, you have two options:
Option 1: Disable the property node filtering by right-clicking the channel property node, choosing "Select Filter...", and then selecting "Show All Attributes":
or Option 2: Install a real or simulated PXIe-4330 in your system. You can install a simulated device via the Measurement & Automation Explorer (MAX) program:
01-21-2013 01:33 PM
thank you so much
you just made my day.
01-23-2013 08:57 AM
HI
Please help me over this new problem, I am doing verification procedure for NI 9234 and I encountered too many problems.
1) for phase matching verification as NI recommended I have connected " The extract single tone information VI" to data out put and then connect indicator to phase detected , but the value is keep changing. it is so silly.
2) for IEPE current verification it is required to create AI voltage and enable IEPE excitation? do you know how to do that ? ( AC coupled with IEPE) ?
Thanks
01-23-2013 09:46 AM
01-25-2013 06:32 AM
Can you be more specific about the behavior you’re seeing when you try to do the phase matching verification? What exactly are you trying to do with the code in this screenshot? Is this the code that’s doing the phase matching verification? If so, where is the extract single tone information VI that you referenced? Are you saying that the data on “Waveform Chart” in your code is consistently changing? If so, in what way is it changing?
In response to your second question about the excitation voltage, check out this knowledge base article:
http://digital.ni.com/public.nsf/allkb/3AD6CCE935192B4086256F6B0079CB1F?OpenDocument
I think that might help address your question.
Also, I saw that you’ve asked this same question on another forum thread. For the sake of consistency, we’ll keep the information on this thread instead of the other one.
01-25-2013 03:43 PM
Hi
thanks for your response, here is my program for Phase matching verification , as you can see I have connected data of READ DAQ to Time signal of Single tone information and then create indicator for phase detected.
The problem is the value for phase detected is keep changing. I have followed exactly the procedure from NI-9234 calibration procedure.
I have attached the program and calibration procedure for phase matching.
thanks
01-25-2013 03:44 PM
here is snapshot.
01-28-2013 07:35 PM
By how much is your "phase detected" value changing? Is it a small amount or many degrees?
Also, there's a note in the calibration procedure to "wait 20 s for the AC coupling filter on the NI 9234 to settle". Were you sure to do that?
Best Regards,