Error -1073807339 occurred at VISA <function name>.viPossible reason(s):VISA: (Hex 0xBFFF0015) Timeout expired before operation completed.
This is a generic timeout error that can be caused by different factors. Follow the troubleshooting steps below to resolve the error.
Recognize if the USB instrument is USB Test and Measurement Class (USBTMC) or USB RAW instruments. USBTMC instrument conform to the USBTMC protocol, while USB RAW instruments use their own specific communication protocol. After the device is identified as USBTMC or USB RAW, set up NI software to communicate with a USB instrument in LabVIEW.
If you experience issues in VISA test panels,
The shipping example Simple Serial.vi can be found in LabVIEW Help >> Find Examples >> Hardware Input and Output >> Serial.
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