I am using serial communication and always having error 1073807246, I try to solved using the idea given in the ni site but it still doesnot work. Looking for your help?

I am using labview 6i. The ahrdware I am communictating is light modualtor.

"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-

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