usb to serial communication

[billko]

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@Ben_Manthey wrote:

There's a known bug with USB Serial convertors.

http://www.ni.com/product-documentation/52366/en/#182027_by_Date

It's supposedly fixed in VISA 15.0 but I haven't had a chance to test it. 

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The user reported that the manufacturer-supplied application also does not work.  Have you tried swapping out the USB to Serial converter?

[RavensFan]

If you can't get the manufacturer's software to work, then that is proof this isn't even a LabVIEW problem.  You need to go back to the mfgr and work with them until you can get their software to work.  Maybe the problem isn't even the USB/serial adapter, but their device is broken.

[etuzuner]

So, it means that there is nothing wrong with your LabVIEW work. You should contact the manufacturer.