# Fieldbus Requirements

For correct fieldbus communication, the following installations and configurations must be made. This is done in the Fieldbus and SoftPLC tab.

- A fieldbus module is installed on the controller.

- Common fieldbus parameters set in the menus in the Overview sub - tab.

- Signal configurations are created in the Fieldbus sub-tab, which are then mapped in the Fieldbus Virtual Station Mapping Configuration menu in the Overview sub - tab.

- Items mapped into fieldbus maps in the Signal Configuration menu, located in the Fieldbus sub - tab.

- Fieldbus maps assigned to virtual stations and placed into the Process Data Frame in the menus in the Fieldbus and SoftPLC tab.