Select a Performance Monitor interface

To change point attributes other than Point Source, Program instance, and Scan class number for Performance Monitor points, see Edit point attributes.

1. Click the Tag Settings tab.

2. Select the PI Performance Monitor interface for which you are building points.

3. Enter or update the PI Interface Identification information.

   If you have configured your PerfMon Interface with the PI Interface Configuration Utility (ICU), you should see the interface and its Point Source, Program instance, and Scan Class number attributes.

   If you have not used the ICU to configure the Performance Monitor Interface, manually enter the configuration information for Point Source, Program instance, and Scan Class number.

   Attribute	Description	Default
   Point Source	Because Data Archive stores data collected from a variety of sources, the Point Source field distinguishes where the data arrived from. It is a one-character value; for example, $. This character must match the one specified in the PI Performance Monitor’s startup command file.	#
   Program instance [Location 1]	You can run multiple copies of the full version of PI Performance Monitor on the same machine. The Program instance field associates a tag with a particular copy of PI Performance Monitor. Program Instance is a positive integer. It should match the id= parameter used in the interface startup command file.	1
   Scan Class number [Location 4]	Corresponds to a scan class set that is created at interface startup.	1

4. Optional: Enter a prefix for the point names in the Point Name Prefix text box.

   This option allows you to add a prefix string to all point names that you create. If you change the Point Name Prefix while points are in the Build Tags tab, the tag names of those points change accordingly.

   Note: When an existing server is selected, you cannot change the point source or interface instance, and the Performance Counters tool selects a scan rate from the available scan rates configured for the interface.