Tag

Label to associate with OPC Toolbox object

Description

You configure Tag to be a character vector value that uniquely identifies an OPC Toolbox™ object.

Tag is particularly useful when constructing programs that would otherwise need to define the toolbox object as a global variable, or pass the object as an argument between callback routines. You can return a toolbox object with the opcfind function by specifying the Tag property value.

Characteristics

Access	Read/write
Applies to	dagroup, daitem, opcda
Data type	character vector
Values	The default value is an empty character vector ('').