Communication Types (Cp 1543Sp-1); Ethernet Interface; Ipv6 - Siemens SIMATIC NET ET 200SP Operating Instructions Manual

4.3

Communication types (CP 1543SP-1)

Validity: CP 1543SP-1
You will find the description of the CP 1542SP-1 IRC in the relevant configuration manual.
"Communication types" parameter group
To minimize the risk of unauthorized access to the station via Ethernet, you need to enable
the following communications services for the CP.
● Activate online functions
Enables access to the CPU for the online functions via the CP (diagnostics, loading
project data etc.). If the function is enabled, the engineering station can access the CPU
via the CP.
If the option is disabled, you have no access to the CPU via the CP with the online
functions. Online diagnostics of the CPU with a direct connection to the interface of the
CPU however remains possible.
● Enabling S7 communication
Enables the functions of S7 communication with a SIMATIC S7 on the CP.
If you configure S7 connections to the relevant station, and these run via the CP, you will
need to enable this option.
Open User Commmunication does not need to be enabled since you then need to create the
relevant program blocks. Unintended access to the CP is therefore not possible.
4.4

Ethernet interface

Configure the generally available parameters just as for every other Ethernet interface:
● General data (name etc.)
● Addresses and possibly routers
● Port settings
● Access to the Web server
4.4.1

IPv6

Manual configuration of IPv6 addresses
If you configure additional IPv6 addresses ("Manual configuration" option), make sure that
the two IPv6 addresses belong to different subnets.
You will find information on configuration in the STEP 7 information system.
CP 154xSP-1
Operating Instructions, 12/2019, C79000-G8976-C426-05
4.3 Communication types (CP 1543SP-1)
Configuration
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