could you pls expalin me how to solve visa error 1073807246, I am serial communication with the hardware. thanks

[Physics]

Hardware :- light modulator

[Ray.R]

Here is the definition of the error from LabView:

"VISA: (Hex 0xBFFF0072) The resource is valid, but VISA cannot currently access it"

Are you able to communicate with the hardware manually using a sw like "HyperTerminal"? If so, configure the serial port setting to the same as that to communicate manually.

It appears that you are using a valid comm port, but it cannot talk to the hardware for some reason. It could be as simple as a bad connection (wiring / soldering / etc) to the hardware.

The first thing I would check is the ability to communicate manually. If it works manually and you duplicate the settings, it should work. If you can;t communicate manually, then you'll have to do some troubleshooting..

-JLV-

[Evan]

I have seen this error when you are trying to run 2 programs on the same serial port, for example Hyperterminal and LabVIEW.

In addition I once saw this when I tried to use the wrong serial port, and had my Mouse attached to the port.

See if you can use hyperterminal to do the communciation.