The PROFINET IO is based on the Industrial Ethernet. If, for instance, you wish to use PROFINET communication for Mobile Panel 277, you will need to configure "Ethernet communication" in the configuration interface via "Communication > Connections".
- There is information available on how to configure an Ethernet connection in Entry ID: 24109937
- "PROFINET IO direct-control keys" can be configured via PROFINET IO. You can find detailed information about this topic in the Online Help in the 2005 version or higher of WinCC flexible.
Direct-control keys, Connection