Report
Port number (2) Link layer
(4) Transport layer
Function
Description
PROFINET Con‐
text Manager
34964
(4) UDP
PROFINET
connection less
RPC
The PROFINET context
manager provides an
endpoint mapper in order
to establish an applica‐
tion relationship (PROFI‐
NET AR).
Connection-oriented communication protocols
FTP
File transfer pro‐
tocol
21
(4) TCP
Server/
incoming
FTP can be used for the
first commissioning.
FTP can be activated/de‐
activated using parame‐
ter p8908.
DHCP
Dynamic Host
Configuration
Protocol
68
(4) UDP
Dynamic Host
Configuration
Protocol
Is used to query an IP ad‐
dress.
Is closed when delivered,
and is opened when se‐
lecting the DHCP mode.
http
Hypertext trans‐
fer protocol
80
(4) TCP
Hypertext
transfer proto‐
col
http is used for the com‐
munication with the CU-
internal web server.
Is open in the delivery
state and can be deacti‐
vated.
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 de‐
vices of other suppliers.
Communication with ES,
HMI, etc.
Is open in the delivery
state and is always re‐
quired.
SNMP
Simple network
management pro‐
tocol
161
(4) UDP
Simple network
management
protocol
SNMP enables the read‐
ing out and setting of net‐
work management data
(SNMP managed Ob‐
jects) by the SNMP man‐
ager.
Is open in the delivery
state and is always re‐
quired.
Communication
A.1 Communication
Industrial Security
Configuration Manual, 08/2017, A5E36912609A
217