Passing Numeric Data Using VISA Write

Updated May 3, 2018

Reported In

Software

  • LabVIEW Base
  • LabVIEW Full
  • LabVIEW Professional

Driver

  • NI-VISA

Issue Details

How do I pass 8-bit numeric data out to the serial port using the VISA write VI, which accepts only string data as the input?

Solution

Use the Type Cast function to convert the 8-bit numeric value into its equivalent ASCII character. The character can then be wired to the Write Buffer input of the VISA write VI. The actual data passed out through the serial port would be the ASCII value of the character. The code example below demonstrates how to perform this action.

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