Control class/Value (Signaling) property

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VI Server Property Information
Property ID 6332023
Scope Basic Development Environment
Data Name Val(Sgnl)
Short Name* Val(Sgnl)
Long Name* Value (Signaling)
* Displayed here in English. Short and Long names appear in the language of the LabVIEW IDE.
Owning Class ID 6
Owning Class Name Control Class
Data Type LV Variant data type

LV Variant

Property Node Value (Signaling)
Available in Real-Time Operating SystemYes
Available in Run-Time EngineYes
Loads the block diagram into memoryNo
Loads the front panel into memoryNo
Need to authenticate before useNo
PermissionsWrite Only
Remote access allowedYes
Settable when the VI is runningYes

Sets the value of the control and generates a Value Change event.

This property updates the value of an object similar to the Value property. However, Value (Signaling) also causes LabVIEW to generate an event as if the user had interactively changed the value of the object. National Instruments recommends you use this property only when you rely on LabVIEW generating an event in response to the programmatic value change.

If this is a Boolean value configured with a latching mechanical action, this property always returns an error. Due to race conditions that can occur when you have a Boolean value with latching mechanical action, you cannot programmatically read Boolean values that are set with a latching mechanical action.



Version Change(s)
LabVIEW 2018 More info to come.

See Also

External Links