With tag export/import only the values that are not equal to the default values are needed.
If the value isn’t exported it is equal the the default value in the UDT definition.
“If the value isn’t exported it is equal the the default value in the UDT definition.” This is true but not for all my cases, in fact, the mayority of my cases have the explicit value specified. A few don’t but i don’t know why.
A possibility is that the value is specified in the UDT as a binding to a parameter.
The value of the parameter would change but not the underlying binding
Posting an example of what you are seeing would be helpful