'LabVIEW string output

How do I send a string output from a DAQ Board (NI- USB 6259) using LabVIEW? I want to send commands such as "CELL 0" or "READ" to a potentiostat device using LabVIEW.

Thanks

stringlabview


Solution 1:[1]

As eaolson said a DAQ is not intended to control devices. However it is an interesting project to enter the guts of the communication protocol. Doing it with a DAQ would require to:

  • Identify the protocol (GPIB or RS-232)
  • Make your cable from the DAQ output connector
  • For each command, generate the waveform in LabVIEW, by using the letters' ASCII code, stop bits, etc. This is the funniest part (INMHO, but I understand it's not everybody!)
  • Send it (using DAQ analog write VIs, you should find many examples for this)
  • The oscilloscope will be your best friend

Sources

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Source: Stack Overflow

Solution Source
Solution 1 CharlesB

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