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Node Path To Node Name Array VI

LabVIEW 2013 Datalogging and Supervisory Control Module Help

Edition Date: June 2013

Part Number: 371618J-01

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Owning Palette: OPC UA VIs

Requires: DSC Module or Real-Time Module

Generates an array of node names from a node path. You can use this VI both on OPC UA server and OPC UA client applications.

node path specifies the path of the node. The node path consists of node names separated by a period between each name, with the parent node name before the period and child node name after the period. For example, a node path Device.folder.item indicates that Device is the parent node of folder, and folder is the parent node of item. The following examples demonstrate how to specify node path.

  • If a node name contains a period, use a pair of quotation marks around the node name. For example, if a node name is Device.1, and this node contains a child node folder, the node path of the child node is "Device.1".folder.
  • If a node name contains one or more quotation marks, add one quotation mark beside each quotation mark and then a pair of quotation marks around the node name. For example, if a node name is Device1"Device2, and this node contains a child node folder, the node path of the child node is "Device1""Device2".folder.
  • If a node name contains both a period and quotation mark, both of the previous rules still apply. For example, if a node name is Device1"Device2.Device3, and this node contains a child node folder, the node path of the child node is "Device1""Device2.Device3".folder.
error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
node names returns an array of node names.
error out contains error information. This output provides standard error out functionality.

 

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