01-18-2023 03:14 PM
https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000019WKySAM&l=en-US
Per this knowledge base article updated in Oct 2022, I should be able to access a DAQmx Channel Property Node and select Analog Input> General Properties>Filter>Digital Filter>Enable
To get the following property node configured:
The issue I am having is that even though I can BROWSE in the DAQmx Property Node and find this setting - I am unable to get it to appear on a block diagram either in LabVIEW 2019 on Windows 10 or LabVIEW 2019 running on RHEL 7.9
Double clicking on the entry in the Browse Window does not apply the selection to the property node!
Should this be available in LabVIEW 2019?
Or should I upgrade to 2022? Upgrading is no trivial task on our multiple systems.
Can I just upgrade the DAQmx Driver as a potential fix?
Solved! Go to Solution.
01-18-2023 03:23 PM
I guess you don't have any DAQmx hardware that supports this feature connected to your development computer.
Drop a DAQmx property node, right-click -> Select Filter.. -> Show All Attributes
01-18-2023 05:34 PM - edited 01-18-2023 05:38 PM
I do have the hardware installed that is supported by this feature.
Thanks - hardware filtering was the issue. What a silly thing to have enabled without setting it up explicitly (unless I missed something).
I definitely have the hardware installed on the Linux system, and I have a virtual PXIe system on the Windows system with the 4309 cards.
I set it to Show All and now it is working properly.
01-18-2023 06:10 PM - edited 01-18-2023 06:12 PM
All that and the system tells me Error -200452 Property Not Supported for the Device NI PXIe-4309 on RHEL system. Odd since the original link specifically lists this property and the cards in question as being compatible.
https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000019WKySAM&l=en-US
01-24-2023 03:48 PM - edited 01-24-2023 03:53 PM
Looking at the Multifunction IO Brochure from NI - it looks like I should be able to configure the SELECTABLE Lowpass Filter.
How do I access through DAQmx since it seems the proposed method in the first called out linked page does not work (Error -200542)
But then looking at the Analog Input Hardware Selection Pages on NI Website
It seems to indicate that the Discrete Low-Pass Filter is NOT on this product. WHICH IS CORRECT!?
01-25-2023 05:31 PM
Looks like 4309 does not have this hardware for LPF as adding a 4305 allowed me to access this property.