Communication Services And Used Port Numbers - Siemens SINAMICS S120 Function Manual
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11.7
Communication services and used port numbers
SINAMICS converters support the communication protocols listed in the following table. The
address parameters, the relevant communication layer, as well as the communication role
and the communication direction are decisive for each protocol. You require this information
to match the security measures for the protection of the automation system to the used
protocols (e.g. firewall). The security measures are restricted to Ethernet and PROFINET
networks.
The following table shows the various layers and protocols that are used.
Layers and protocols
Report
PROFINET protocols
DCP
Discovery and
configuration
protocol
LLDP
Link Layer Dis-
covery protocol
MRP
Media Redun-
dancy Protocol
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Function Manual, 11/2017, 6SL3097-4AB00-0BP5
11.7 Communication services and used port numbers
Port num-
(2) Link layer
ber
(4) Transport layer
Not relevant (2) Ethernet II and
IEEE 802.1Q and
Ethertype 0x8892
(PROFINET)
Not relevant (2) Ethernet II and
IEEE 802.1Q and
Ethertype 0x88CC
(PROFINET)
Not relevant (2) Ethernet II and
IEEE 802.1Q and
Ethertype 0x88E3
(PROFINET)
Function
Description
Accessible
DCP is used by
nodes,
PROFINET to determine
PROFINET devices and
PROFINET
to make basic settings.
Discovery and
configuration
DCP uses the special
multicast MAC address:
xx-xx-xx-01-0E-CF,
xx-xx-xx = Organization-
ally Unique Identifier
PROFINET
LLDP is used by
Link Layer
PROFINET to determine
Discovery pro-
and manage neighbor-
tocol
hood relationships be-
tween PROFINET
devices.
LLDP uses the special
multicast MAC address:
01-80-C2-00-00-0E
PROFINET
MRP enables the control
medium redun-
of redundant routes
dancy
through a ring topology.
MRP uses the special
multicast MAC address:
xx-xx-xx-01-15-4E,
xx-xx-xx = Organization-
ally Unique
Identifier
Communication
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