Beckhoff CU2508 Documentation page 54

Commissioning
Fig. 74: "Import Network Variable" dialog - display of Publisher variables
Inputs and outputs were created under the added variable.
Fig. 75: Display of created inputs and outputs
The FrameState input and the FrameCtrl output under the box indicate the current status (or control) of the
received Ethernet frames. FrameState and FrameCtrl are reserved and are currently not supported.
54 Version: 2.6 Real-time Ethernet port multiplier