User Documentation

User Manual Managed Switches
135
PROFINET I/O Devices
The Weidmüller switch is a PROFINET I/O device. A device model describes all field devices in terms
of their possible technical and functional features. It is specified by the DAP (Device Access Point)
and the defined modules for a particular device family. A DAP is the access point for communication
with the Ethernet interface and the processing program.
PROFINET Protocols
DCP In PROFNET I/O, each field device has a symbolic name that uniquely identifies the field
device within a PROFINET I/O system. This name is used for assigning the IP address
and the MAC address. The DCP protocol (Dynamic Configuration Protocol) integrated in
every I/O device is used for this purpose.
DHCP 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.
PROFINET Type LLDP
Automation systems can be configured flexibly in a line, star, or tree structure. To compare the
specified and actual topologies, to determine which field devices are connected to which switch port,
and to identify the respective port neighbor, LLDP according to IEEE 802.1AB was applied in
PROFINET I/O.
PROFINET filed bus exchange existing addressing information with connected neighbor devices via
each switch port. The neighbor devices are thereby unambiguously identified and their physical
location is determined.
Device descriptions
GSD file The GSD files (General Station Description) of the field devices to be configured are
required for system engineering. This XML-based GSD describes the properties and
functions of the PROFINET I/O field devices. It contains all data relevant for engineering
as well as for data exchange with the device.
Refer to Appendix C how to get the GSDML file from the Weidmüller Internet Server.
4.2.2 Configuring PROFINET I/O on Weidmüller Switches
Enable PROFINET I/O in WEB UI on the Switch
The following steps show how to enable the Profinet I/O function on the Weidmüller switch:
1. Connect the configuration PC to the Switch
2. Change the IP address of the PC to one of the rang 192.168.1.0 / 24
e.g. IP address 192.168.1.200 / Subnet mask 255.255.255.0
3. Start a Web browser and log into the Web interface of the Switch (default IP address of the
switch is 192.168.1.110)
Username: admin / Password: Detmold
4. Select menu Industrial Protocol -> PROFINET IO