Substitution errors

In some rare cases, it is possible to name objects in PI MDB such that the substitution of the replacement character (Replacement characters) would create a naming conflict in PI AF. For example, suppose PI MDB contains the following two Properties:

• my_property;example

• my_property,example

The default replacement character for a semicolon (;) is a comma (,). In AF, these names would both become my_property,example. Before migration, the PI MDB to AF Preparation wizard detects these potential conflicts and requires that you resolve them.

PI AF Link does not check for such errors after migration. If you create object names that cause a conflict (for example, you use property names temp; and temp, at the same level in MDB) then you will likely see unexpected synchronization behavior. In AF, PI AF Link will create only one attribute whichever PI MDB object was edited last will be synced with the AF attribute. No error is returned.