Rockwell Automation 1756-HIST2G FactoryTalk Historian ME 2.2 - Manual (Page 223)

A • F ACTORY T ALK H ISTORIAN ME R ULE E DITOR
213
File Management Settings
The File Management section contains the following information:
„
Include default rule set
Select this option if you want to use the default rules during point discovery. Clear
this option if you do not want the default rule set to be used during the discovery
process. The default rule set includes rules to find tags in controllers using the
built-in data types such as SINT, DINT, REAL. It also includes other rules such as
those that identify tag members.
For a complete list of the default rules, read the ADDefault.xml file, by clicking
either [View XML file...] or the View icon in Step 1: Discover Tags of the Add
Points Wizard.
When working with user-defined and default rule files, note the following:
‡
The rule(s) defined in the user-defined rule file take precedence over the rules
defined in the default rule file if there is a conflict. For example, assume the
user-defined rule file has a rule where it wants to include tags whose name
contains the alphabetical character p. Also assume that the default rule file
excludes tags whose name contains the word program and the Include
program default rule set option is selected.
‡
During the point discovery process, both rule files are used. However, the
rules from the user-defined rule file take precedence over rules from the
default rule file. As a result data points whose name contains the letter p will
be discovered, even though the default rule file excludes tags with names
containing the word program in them.
‡
Duplicate tags (that is, tags found by both rule files) are displayed only once.
For example, if the user-defined rule file discovers five data points (tags) that
the default rule file also finds, those five tags will be displayed, not two sets of
five identical tags.
„
View XML file…
Click to view the default rule file, ADDefault.xml.
„
Rule File Management…
Click to view the User Defined Rule File List dialog box, which provides a means
to create and manage your rule files.