Communicate with USB cDAQ-9174 and PXIe-8840 RT Controller

[grkmsngr]

Hello Everybody!

I have PXIe-8840 RT controller and PXI modules in PXIe-1082 chasis. I have also cDAQ 9174 chasis. I connected cDAQ-9174 chasis to USB port of the PXI RT Controller. But It was showed up as  "cDAQ 9174 USB0::0x3923::0x717A::012B88CF::RAW" in NI MAX.

Is it possible communicate with cDAQ and PXI on RT Target VI by using DAQmx driver?

How to configure cDAQ device under PXI RT Target in MAX?

Thanks for your answers in advance.

[aishwarya.raja]

Hello, 

Can you confirm which version of DAQmx driver is installed in the system? 

Regards,

Aishwarya Raja

Technical Support Engineer

[aishwarya.raja · Accepted solution]

Hello, 

If you are connecting the 9174 cDAQ chassis to a PXIe-8840 running PharLap on it, in order to detect the cDAQ chassis in NI MAX you will need DAQmx driver version 18.0 or lower. 

However, if the PXIe-8840 controller has Linux RT running on it, you should ideally be able to detect the chassis in NI MAX with latest versions of DAQmx driver (19.0 or higher) too. 

Regards,
Aishwarya Raja
Technical Support Engineer
NI 

[LincyZM]

Hi，is there any document about this compatibility?

[grkmsngr]

Thanks, you are right. Our PXIe-8840 running PharLap on it and DAQmx driver version 19.0.

So I want to ask something. How to convert PharLaps OS into Linux RT OS?