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Many LabVIEW nodes such as VIs contain an error out parameter you can use to manage errors.
Standard error out functionality is as follows:
|error out contains error information. If error in indicates that an error occurred before this VI ran, error out contains the same error information. Otherwise, it describes the error status that this VI produces. Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.|
The error out contains the following cluster elements:
|status is TRUE (X) if an error occurred before this node ran or FALSE (checkmark) to indicate a warning or that no error occurred before this node ran. The default is FALSE.|
|code is the error or warning code. If status is TRUE, code is an error code. If status is FALSE, code is 0 or a warning code.|
|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.|