Commissioning
Commissioning the Device in PROFINET
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8.6.2 Device model – FEN20-4IOL
The FEN20-4IOL has four configurable IO-Link channels, which can also be configured as four
digital inputs or outputs. In addition to that, three virtual slots are provided via GSDML in
PROFINET. Those channels are used to map the different diagnostic and status (IO-Link and
VAUX diagnostics, IO-Link-Events, module status) data into the master's process image .
Fig.23: FEN20-4IOL – slot overview in in TIA-Portal
A Basic slot for e. g. DXP-channels and Data Valid Signal
B IO-Link ports for the configuration with specific IO-Link devices or for gen-
eric configuration
C one slot each for diagnostics and status
8.6.3 Address setting in PROFINET
In IP-based communication, the field devices are addressed by means of an IP address.
PROFINET uses the Discovery and Configuration Protocol (DCP) for IP assignment.
When delivered, each field device has, among other things, a MAC address. The MAC address is
sufficient to give the respective field device a unique name.
The address is assigned in two steps:
n Assignment of a unique plant specific name to the respective field device.
n Assignment of the IP address from the IO-Controller before the system start-up based on the
plant-specific (unique) name.
PROFINET naming convention
The names are assigned via DCP. The device name must meet the requirements of the Domain
Name System (DNS) (see below). The device name is checked for correct spelling during input.
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