Rockwell Automation FactoryTalk View Site Edition Users Guide - Manual (Page 493)

17 • C REATING GRAPHIC OBJECTS
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Using placeholders to specify values for global objects
A tag placeholder is the cross-hatch character ( # ) followed by a number from 1 to 500.
You can use tag placeholders to specify a value for a graphic object, instead of (or as part
of) a tag name, expression command, or embedded variable.
Tag placeholders used in standard graphic objects let you reuse one graphic display for
several purposes, by substituting tag values for the placeholders at run time.
You can also set up tag placeholders for a global objects, to assign different run-time
values to the reference objects linked to the global base object.
To do this, define the tag placeholder at the global base object, and then assign the run-
time values to the linked reference objects.
For more information, see “Setting up tag placeholders for global objects” on page 16-37.
Adding global objects into the graphic libraries
Displays in the Libraries folder cannot contain reference objects. If you add:
 A global object display into the Libraries folder, the global objects are converted into
standard graphic objects.
 A standard graphic display containing reference objects into the Libraries folder, the
reference objects are deleted, when the new library is saved.
Setting up the link properties of reference objects
A reference object has properties that link it to its base object. You can set these properties
when you copy (or drag and drop) a global object into a standard graphic display, or you
can modify them later.
The Link properties have default values when the reference object is created. You can
modify these properties in the Property Panel for the object, or in the Global Object
Defaults dialog box.
The values of the Link properties determine whether aspects of the reference object’s
appearance and behavior are defined by the base object, or by the reference object itself.
For details, see the property descriptions that follow.