List of PI MDB alias to PI AF attribute conversion
- Last UpdatedJun 17, 2025
- 1 minute read
- PI System
- PI Server
In PI MDB, a module can have one or more aliases. Aliases are represented in PI AF as attributes. An alias has a name and a reference to a PI point. During migration, AF Link creates an attribute to represent the PI alias as follows:
|
PI MDB alias |
PI AF attribute conversion |
|---|---|
|
Attribute name |
The attribute in PI AF has the same name as the corresponding alias in PI MDB, unless the alias name contains a character that is invalid in PI AF. In that case, the attribute name uses a replacement character instead of the invalid character (see Replacement characters). |
|
Data reference |
Attributes can have a data reference. The attribute's data reference is the same PI point referenced by the PI alias. |
|
Attribute value type |
Attributes have an associated value type. In the current system, all PI point types are treated as Anything in PI AF. There is no explicit type mapping. |
|
IsBatchAnchored flag |
An alias has a flag called IsBatchAnchored. This flag is not used by any of our products, but it can be used by custom applications. If an alias uses this flag (has the flag set to true) then AF Link creates a new PI AF category, named BatchAnchored, and assigns the category to that attribute in PI AF. |