How to invoke different constants?

[madara77]

Hi. I want to send different constants(t,b or c) to visa write instead of write control. The constants should be sent when i press a button in front panel.

[GerdW]

Hi madara,

simple answer: use case structure(s)…

Better answer: use an enum or a ring control with a case structure…

[crossrulz]

Even better answer: Use a combo box as a control that can then be written directly into the VISA Write.  No case structure necessary.

[GerdW]

Hi crossrulz,

sometimes you might not want to send a command at all, so I still suggest to use a case structure 🙂

[crossrulz]

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GerdW wrote:  sometimes you might not want to send a command at all, so I still suggest to use a case structure 🙂

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That is true.  But not in this case.  From another thread (http://forums.ni.com/t5/LabVIEW/When-highlight-execution-is-quot-ON-quot-i-get-the-output-but/m-p/32...) I know the instrument uses a command-response protocol.