Beckhoff EL6900 Operating Instructions Manual page 52

Operation
Fig. 49: Setting a unique ID
This ID must also be set on the partner device, i.e. the Subscriber.
The network variables can now be used in the project. The inputs are shown TwinSAFE Input, the outputs
under TwinSAFE Output.
Fig. 50: Attach TwinSAFE variable for inputs
52 Version: 2.2.0 EL6900