This name is assigned to the individual devices
and thus to the IO device's MAC address by an
engineering tool using the DCP protocol during
commissioning (device initialization). Optionally,
the name can also be automatically assigned by the
IO controller to the IO device by means of a specified
topology based on neighborhood detection.
The IP address is assigned based on the device name
using the DCP protocol. Because DHCP (Dynamic
Host Configuration Protocol) is in widespread use
internationally, PROFINET has provided for optional
address setting via DHCP or via manufacturer specific mechanisms.
The addressing options supported by a field device
are defined in the GSDML file for the respective field
device.