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source specifies the origin of the error or warning and is, in most cases, the
name of the node that produced the error or warning.
The Unbundle By Name function, which is highlighted in the figure, returns the
status element in the error cluster. If the Button Express VI returns an error, status is
TRUE, and the Boolean value is passed to the Conditional Terminal, also
highlighted. When Conditional Terminal receives a TRUE value, the Main Loop stops
repeating the code within its diagram, and the Main VI stops.
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NI ELVIS III Getting Started
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