Siemens SINAMICS S120 Series - Page 27

General information
2.5 Communication services and used port numbers
Communication
Function Manual, 12/2018, 6SL3097-5BD00-0BP0
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Protocol
Port number
(2) Link layer
(4) Transport layer
Function
Description
SNMP
Simple Network
Management Proto-
col
161 (4) UDP Simple network
management pro-
tocol
SNMP enables the reading out
and setting of network man-
agement data (SNMP man-
aged Objects) by the SNMP
manager.
Is open in the delivery state
and is always required.
https
Secure Hypertext
Transfer Protocol
443 (4) TCP Secure Hypertext
transfer protocol
https is used for the communi-
cation with the CU-internal
web server via Transport Lay-
er Security(TLS).
Is open in the delivery state
and can be deactivated.
Internal
protocol
5188 (4) TCP Server/
incoming
Communication with commis-
sioning tools for downloading
project data.
Reserved 49152...65535 (4) TCP
(4) UDP
- Dynamic port area that is used
for the active connection end-
point if the application does
not specify the local port.
EtherNet/IP protocols
Explicit messaging 44818 (4) TCP
(4) UDP
- Is used for parameter access,
etc.
Is closed when delivered, and
is opened when selecting
EtherNet/IP.
Implicit messaging 2222 (4) UDP - Is used for exchanging I/O
data.
Is closed when delivered, and
is opened when selecting
EtherNet/IP.
Modbus TCP protocols (server)
Request & Response 502 (4) TCP - Is used for exchanging data
packages.
Is closed when delivered, and
is opened when selecting
Modbus TCP.