PXIE-8880 to NI9189 Not connecting

[BSlack]

I have a PXIe-8880 in a NI-1085 Chassis. It is running NI Linux RT (x64-6.1.59-rt16 OS). I want to connect a NI-9189 Cdaq as expansion I/O. I can add it as a network device in NI MAX (version 2023Q4) with the PXie-8880 as the host. I have updated the firmware on the 9189 to the latest as well. However, the two will not connect. Am I missing something there? Any help will be greatly appreciated.

[ZYOng]

Seems like you have done the steps in Use cDAQ-9185 / 9189 with NI Linux RT PXIe controller as host

Can you elaborate more on "the two will not connect"? What did you do and what error message did you get?

[BSlack]

Hey Zyong,

Thanks for replying. You are correct, I followed that procedure. I can add the 9189 to the host (it is showing up under the remote systems-Network devices), but it will not connect to it, all I am getting is the greyed out icon with the red x. I have set the IPs to static. Currently, the 9189 are on the same domain as the PXIe to computer domain, perhaps I need to put those on a separate domain? Ultimately, my goal is to run 3 of the 9189s filled with 9234 C-modules @ 50kHz.  I am assuming that I will need to run the 9189s in FPGA to achieve that rate.

Alternatively, I also have access to NI-9145s that I can connect to the host PXIe via EtherCat and run those in FPGA (which I am attempting now), however I am having some trouble getting data out of the 9145s out to the PXIe VI. the 9145 Ethercat keeps disconnecting from the Master (PXIe-8880), I am leaning towards that I am just hitting it too fast. My core experience is in PXIe and High speed with expansion chassis working low speed Data acquisition, this is a bit opposite, so learning the quarks as I go.

[ZYOng]

I can add the 9189 to the host (it is showing up under the remote systems-Network devices), but it will not connect to it, all I am getting is the greyed out icon with the red x.

Try the steps in Ethernet cDAQ Chassis Grayed out in MAX or Has Network Errors

my goal is to run 3 of the 9189s filled with 9234 C-modules @ 50kHz.  I am assuming that I will need to run the 9189s in FPGA to achieve that rate.

cDAQ-9189 does not support FPGA. You can use DAQmx Sample Clock timing to stream data. See shipping example Continuous Acquisition. How to Search DAQmx Examples in LabVIEW

the 9145 Ethercat keeps disconnecting from the Master (PXIe-8880)

It sounds like there is constant packet drop from the busy network. Try Measure bandwidth using Wireshark

[BSlack]

Hey Zyong,

Thank you for help, I now have the 9189 connected to the PXIe-8880. I now have a different issue of the Labview project will not connect to the PXIe-8880. I have confirmed the IP addresses are compatible and all software versions are the same. When I try to connect to the PXIe-8880, I get an error from Conflict resolution - Unable to resolve from current dialog. the message just reads " Failed to connect to the target". Was wondering if you have seen this before or have any ideas about what may be wrong. Thanks again!

[BSlack]

Zyong,

LOL, nevermind sir....Found that the Real-time didn't properly install. re-installed onto the PXIe and all is good.