Utility VIs

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LabVIEW 2009 Datalogging and Supervisory Control Module Help

Edition Date: June 2009

Part Number: 371618E-01

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Owning Palette: Tags VIs

Requires: DSC Module. This topic might not match its corresponding palette in LabVIEW depending on your operating system, licensed product(s), and target.

Use the Utility VIs to get information about a Tag Reader instance or to configure front panel bindings.

The VIs and functions on this palette can return general LabVIEW error codes or specific DSC Module error codes.

Palette Object	Description
Configure Front Panel Binding	Configures an existing binding between a front panel object and a shared variable through the corresponding tag of the shared variable. You can specify a front panel control or indicator by using the control reference. This VI resolves the corresponding shared variable for a tag and configures the front panel binding for that shared variable.
Get Database Info	Returns database-related meta information for a tag.
Get Path Separator	Returns the path separator of a Tag Reader instance. You can specify a path separator for a Tag Reader instance by using the Open Tag Reader VI.
Get Published Tag Names	Returns a list of tags and processes that exist under the root URL of a Tag Reader instance.
Get Quality Summary	Reads a Tag Reader instance and returns a summary of the shared variables that this Tag Reader instance contains. This summary contains a URL list of these shared variables and the corresponding quality, status, and timestamp values of these shared variables.
Get Redirect User Event	Returns a user event reference for a specified Tag Reader instance. LabVIEW generates a user event when a URL redirection occurs for the Tag Reader instance.
Get Root URL	Returns the root URL for a Tag Reader instance. You can change the root URL by using the Redirect Root URL VI.
Get Variable URL	Returns the NI Publish-Subscribe Protocol (NI-PSP) URL of a tag.
Not a Valid Tag Reader	Determines whether a Tag Reader instance is valid. A Tag Reader instance is valid until you close it by using the Close Tag Reader VI. This function returns TRUE if the specified Tag Reader instance is not valid.