Multiple 9221/9162 USB DAQ Conflict

[mattmaka]

I'm using LabVIEW 8.6.1 and NI-DAQ  8.8 on Windows XP. I'm trying to set up two NI 9221/9162 usb controlled DAQs to work at the same on the same computer. Each unit works individually, but If I plug one in after another the first one that was plugged in stops responding and I get the below error on a self test in MAX.

When I attempt to use the unresponsive DAQ with the softpanel in MAX I get the following error.

However, if I plug both usb cables into the computer at the exact same time I don't get the device conflict error. Unfortunately this work around is not a desirable solution for the environment this test will be deployed in. Is there a better solution for this problem that will allow both devices to respond regardless of the timing in the plugging in the usb cables?

Thanks you.

Message Edited by mattmaka on 10-26-2009 03:40 PM

[hecmar.arreola]

Hi!

This is a hardware question and should probably be moved to that forum.  Also, I find that hardware specific problems such as this are best answered by NI's phone support staff.

Have you tried this on another machine?  If one is handy, and is convienant to install MAX and drivers onto, see if you can recreate the error on another machine.

[mattmaka]

The hardware is fine as the units work individually, but not simultaneously when plugged in at different times. I'll move it to the HW forum though.

The problem persists on different machines.

Message Edited by mattmaka on 10-26-2009 04:02 PM

[Brandon_B]

Hello,

I received your post on the HW forum and will be troubleshooting the issue there.

Regards,