Learn about supported modifications

Add custom PI AF attributes

You can add custom attributes to the elements that were generated by the connector. To enable the ability to add custom attributes, perform the following steps:

1. Open PI System Explorer and open the PI AF database associated with the connector.

2. In the Elements menu, find the element you wish to modify and determine the template from which it is derived.

3. Open the Element Templates menu by selecting Library > Templates > Element Templates, then locate the template from step 2 and select Allow Extensions on the General tab.

4. Return to the desired element in the Elements menu and add the custom attribute(s).

   Note: Any custom attributes that are added cannot be configuration items; that is, Configuration Item must not be selected for the attributes.

Custom attribute templates can also be added to an element template, as long as Allow Extensions is selected on the element template and Configuration Item is not selected for any attribute templates that were added.

PI AF template modification

Several modifications to PI AF element templates that are generated by the connector are allowed. You can add Extended Properties to the element template, assign a category to attribute templates, and select Allow Extensions. You can also add PI AF Analysis rules directly to an element or an element template.

PI point configuration modification

It is possible to modify selected point attributes after they are created by the connector.

• Modification of the compression settings attributes

• Modification of PI point security settings

• Attributes like Step, Scan, Archiving, Span, Zero, Typical, and Value

  Note: Any point attributes synchronized by the connector will be reset on connector restart.

Unsupported modifications

The following modifications to the PI AF structure that is generated by the connector are not currently supported:

• Deleting element templates created by the connector

• Renaming element templates created by the connector

• Deleting template attributes created by the connector

• Renaming template attributes created by the connector

• Changing data type of attributes created by the connector