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USB-6211 MacOS Setup



I am trying to use a USB-6211 with MacOS (Big Sur, 11.4, 64bits). So far, I installed:


  • NI MAX 21.0
  • NI VISA 21.0
  • LabView 21 (Community Edition)


During the VISA installation, I did go into the Security panel of MacOS in order to allow the driver installation, and I further restarted my computer as prompted. I then followed this link to setup USB communication with the USB-6211: 

Whose first step redirects to this tutorial: 


I suppose the USB-6211 is an USBTMC Instruments. When I start MAX with the USB-6211 connected to my computer it looks like:


Which may be kind of OK and encouraged me to go to the "Test Communication" section.

Note: since I did not know whether my device was USBTMC or not, I also tried to start the NI-VISA Wizard Config tool, as described here (Section  USB RAW Instruments), but the USB option appeared to be greyed out (the USB-6211 was connected to the computer as in the above screenshot):





Then, following the "Test Communication" instructions, I go to the "Input / Output" section of the VISA Test Panel, and try to communicate. However I got the following error message when pressing the "Write" button:


Read Operation

VISA: (Hex 0xBFFF003A) Unable to start operation because setup is invalid (due to attributes being set to an inconsistent state).


See screenshot below:



I do not know what to do. If someone has any suggestion I would be more than thankful !


Note: when using "ls /dev/tty*" I see no difference before and after plugging the USB-6211 in. However, I do see the device appearing and disappearing from the MAX device list as I do so... (I do not know whether the USB-6211 is expected to appear as a regular serial device though, so this may be of little significance). Also note that no LED ever shined up on the USB-6211...




Related topics: (very old)




I further installed NI-DAQmx_Base_15.0.0 because why not? After that, whenever I plug the USB-6211 in, its LED blinks slowly (~1Hz, normal operation code) and if I start MAX, I can know see its Vendor, Model, and S/N information:



However, when I try to "Query" the device, the "Read" operation fails:



Note that in this case, the "Write" operation does not throw the same error message as before. Also note that after I once clicked the "Query" button, the LED on the USB-6211 lights up continuously (error code).

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First and foremost mistake - USB6211 is a DAQmx device and hence requires DAQmx driver to be installed.


6211 is not a Serial device to work with VISA and will not respond to VISA interactions.

Semiconductor Validation & Production Test
Soliton Technologies
LabVIEW + TestStand + TestStand Semiconductor Module (2013 - 2020)
NI STS for Mixed signal and RF
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