I'm trying to figure out a good way to use VI Server to set a value (signaling) to a front panel control with the currently chosen units. Normally, via VI Server, it assumes the value being set is in SI units. So, somehow I need to be able to take the value that I get (as a string) and set it to the control but it needs to be interpretted as the units that were chosen by the user. A potential solution that I found was to set "Numeric Text.Text", get the value, set value with signaling. This works most of the time but fails under the following scenario: Format set to "%.1f" Set Units to Visible and set to "m" Set the value with the above procedure to "1.5" Displayed value becomes "1.5" and the variable's value is 1.5 m Set the value with the above procedure to 1.525 Displayed value is still "1.5" and the variable's value is 1.525 m Set the value with the above procedure to "1.5" Displayed value is still "1.5" and the variable's value is still 1.525 m Ideally, when I set the value back to "1.5", I need the variable to become 1.5 m. If I do step 7 with the standard UI (with keyboard and mouse to type "1.5" on top of the current "1.5" and hitting enter) the variable value behaves as expected (i.e. the variable's value becomes 1.5 m). Does anyone have any other ideas?

This works, if I understand your problem correct. First text resets value, second sets the one you need. Property node is supposed to be linked to Numeric.

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Set Value (Signaling) using Displayed Units

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Re: Set Value (Signaling) using Displayed Units

Hooovahh

Proven Zealot

‎01-06-2017 03:15 PM

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Not sure if you found a solution in the other replies, but I also suggest avoiding LabVIEW built in units. They meet maybe 90% of the use cases, but this just might be one of the 10% that it won't. I'm not too surprised mixing VI server stuff with the units stuff has issues.

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