VISA error message

[jvh75021]

I recently switched from Dev Suite 2009 to 2010 and since then I have been getting an error from VISA Configure Serial Port (Serial Instr).vi after the Serial Instr property node is executed: 

VISA:  (Hex 0xBFFF0011) Insufficient location information or the device or resource is not present in the system. The resource refers to a USB port on one our UUTs, TXUSB. I know little about VISA but figured it was configured in MAX and didn't think that would get modified during an upgrade. Is MAX indeed the place for setting up these resource names?

Thanks,

jvh 

[Dennis_Knutson · Accepted solution]

Dev Suite is a set of multiple applications and drivers. What specifically did you install? If you upgraded your version of NI-VISA, you may have to refresh MAX. Do you see the com ports there?

[jvh75021]

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@Dennis Knutson wrote:

Dev Suite is a set of multiple applications and drivers. What specifically did you install? If you upgraded your version of NI-VISA, you may have to refresh MAX. Do you see the com ports there?

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Thanks for posting.

I let it do a full update so it may have updated NI-VISA. I opened the device manager and found out what port number was being added to the list when the USB device was powered up. Then I renamed the alias to TXUSB and it started working again. I must be sure to always use the exact same physical port too. This seems at odds with the concept that a USB port is a USB port, that is, I can plug most commecial devices into any USB port and have it operate the same way. However I see no easy way around it.

jvh