Siemens SINAMICS S120 - Page 903

Communication
11.7 Communication services and used port numbers
Drive functions
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
903
Report
Port num-
ber
(2) Link layer
(4) Transport layer
Function
Description
ISO on TCP
(according to
RFC 1006)
102 (4) TCP ISO-on-TCP
protocol
ISO on TCP (according
to RFC 1006) is used for
the message-oriented
data exchange to a re-
mote CPU, WinAC, or
devices of other suppli-
ers.
Communication with ES,
HMI, etc.
Is open in the delivery
state and is always re-
quired.
SNMP
Simple network
management
protocol
161 (4) UDP Simple network
management
protocol
SNMP enables the read-
ing out and setting of
network management
data (SNMP managed
Objects) by the SNMP
manager.
Is open in the delivery
state and is always re-
quired.
https
Secure Hypertext
transfer protocol
443 (4) TCP Secure Hyper-
text transfer
protocol
https is used for the
communication with the
CU-internal web server
via Transport Layer
Security(TLS).
Is open in the delivery
state and can be deac-
tivated.
Internal
protocol
5188 (4) TCP Server/
incoming
Communication with
STARTER for download-
ing project data.
Reserved 49152...655
35
(4) TCP
(4) UDP
- Dynamic port area that is
used for the active con-
nection endpoint if the
application does not
specify the local port.