For stable device communication via KNXnet/IP tunneling, the device must use a separate physical address for each connection.

These additional addresses must not be identical to the physical address of the device and must not be used by any other bus device either.

When inserting the device into a project in ETS, additional physical addresses are automatically created for the device. These can be changed, if necessary.

For additional information on assigning and changing physical addresses, refer to the ETS software help.

When the entire device is reset to factory settings, the physical addresses are reset: Resetting the device to factory settings