Replacement suffix

In PI MDB, an alias and a property in the same module can have the same name. In PI AF, aliases and properties are both represented as attributes on an element. In PI AF, no two attributes on the same element can have the same name.

If an alias and property are at the same level and have the same name, then AF Link automatically appends a replacement suffix to the property name in PI AF. This substitution is only in the PI AF name. The PI MDB name does not change.

For example, suppose a module contains a property and an alias, both named temp. During migration, AF Link creates the following attributes in PI AF:

• temp (representing the alias)

• temp_Prop (representing the property)

The Substitutions screen lists the PI AF names that will end in the replacement suffix. If PI MDB contains an alias or property name ending in the replacement suffix, you get a suffix error.

Note: If you have a tree of hierarchical properties, then only the first level of property names must be distinct from alias names in that module. For example, a property nested five levels down can have the same name as an alias on that module.