Siemens SINAMICS S120 Series - Page 26

General information
2.5 Communication services and used port numbers
Communication
24 Function Manual, 12/2018, 6SL3097-5BD00-0BP0
Protocol
Port number
(2) Link layer
(4) Transport layer
Function
Description
PTCP
Precision Transpar-
ent Clock Protocol
Not relevant (2) Ethernet II and
IEEE 802.1Q and
Ethertype 0x8892
(PROFINET)
PROFINET
send clock and
time synchronisa-
tion, based on
IEEE 1588
PTC enables a time delay
measurement
between RJ45 ports and
therefore the send cycle syn-
chronization and time syn-
chronization.
PTCP uses the special mul-
ticast MAC address:
xx-xx-xx-01-0E-CF,
xx-xx-xx = Organizationally
Unique Identifier
PROFINET IO data Not relevant (2) Ethernet II and
IEEE 802.1Q and
Ethertype 0x8892
(PROFINET)
PROFINET Cyclic
IO data transfer
The PROFINET IO telegrams
are used to cyclically transfer
IO data between the
PROFINET IO controller and
IO devices via Ethernet.
PROFINET Context
Manager
34964 (4) UDP PROFINET con-
nection less RPC
The PROFINET context man-
ager provides an endpoint
mapper in order to establish
an application relationship
(PROFINET AR).
Connection-oriented communication protocols
FTP
File Transfer Protocol
21 (4) TCP Server/
incoming
FTP can be used for the first
commissioning.
FTP can be activat-
ed/deactivated using parame-
ter p8908.
DHCP
Dynamic Host Con-
figuration Protocol
68 (4) UDP Dynamic Host
Configuration Pro-
tocol
Is used to query an IP ad-
dress.
Is closed when delivered, and
is opened when selecting the
DHCP mode.
http
Hypertext Transfer
Protocol
80 (4) TCP Hypertext transfer
protocol
http is used for the communi-
cation with the CU-internal
web server.
Is open in the delivery state
and can be deactivated.
ISO on TCP
(according to
RFC 1006)
102 (4) TCP ISO-on-TCP proto-
col
ISO on TCP (according to
RFC 1006) is used for the
message-oriented data ex-
change to a remote CPU,
WinAC, or devices of other
suppliers.
Communication with ES, HMI,
etc.
Is open in the delivery state
and is always required.