Initially, templates were identified by filename. In Niagara 4.3 and later, templates are identified by a unique number, the template id number. Assigned at creation, the template id number is never changed.

The template manifest contains a <subtemplates> section that is populated with an entry for each subtemplate instance contained in this template. The example shows that the file contains an entry for the Funmeter subtemplate instance.

The template manifest <dependencies> section is populated with modules that this template is dependent upon. This should include both control logic, i.e. component tree, dependencies as well as any Px graphic dependencies.

Additionally, the “signature" attribute in the template.manifest.xml file helps to determine if a template has been modified.

Figure 7.   Example template.manifest.xml file