Variables Directory

At a Glance

The Variables & FB instances directory of the structural view of the project is used to access the variables (EDT, DDT, IODDT)and the function block instances(EFB, DFB).

Accessible Services

The Variables & FB instances directory allows you access to the following services, which can be reached via the contextual menu:

Directory	Services
Variables & FB instances	Open: used to access the variables editor, Export: used to access the export of all variables of the project, Import: used to access the import of all variables of the project.
Elementary variables Derived variables Decice DDT variables I/O derived variables Elementary FB instances Derived FB instances	Open: used to access the tab corresponding to the variables editor, Export: used to access the export of all variables of the family selected (EDT, DFB, etc.) .

Access

From the Variables & FB instances directory, you can access the different tabs of the data editor:

Variables tab,
- Create a data instance,
- Create an IODDT type data instance,
- Create a Device DDT type data instance,
- Modify attributes of data instances.
DDT Types tab,
- Create a data instance,
- Archive DDTs in a library,
Function blocks tab,
- Create a data instance,
- Modify attributes of data instances.
DFB Types tab,
- Create a DFB type,
- Configure settings of a DFB type.