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Many LabVIEW nodes such as VIs and functions contain an error out parameter you can use to set up error I/O in VIs in order to manage errors in them. These parameters typically provide the same, standard functionality. When a node exhibits different parameter functionality, the exceptions are documented in the reference material for that node.
Standard error out functionality is as follows:
|error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.|
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.|
|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.|