Siemens SIMATIC NET S7-1500 Operating Instructions Manual page 13

IP configuration - IPv4 and IPv6
The essential features of IP configuration for the CP:
● The CP supports the use of IP addresses according to IPv4 and IPv6.
● You can configure how and with which method the CP is assigned the IP address, the
subnet mask and the address of a gateway.
● The IP configuration and the connection configuration (IPv4) can also be assigned to the
CP by the user program (for program blocks refer to the section Program blocks -
overview (Page 20)).
Note: Does not apply to S7 connections.
IP routing
The CP supports static IP routing (IPv4) to other CM 1542-1 V2.0 / CP 1543-1 V2.0.
For details, see section IP routing (Page 36).
IPv6 addresses - area of use on the CP
An IP address according to IPv6 can be used for the following communications services:
● FETCH/WRITE access (CP is server)
● FTP server mode
● FTP client mode with addressing via program block
● E-mail transfer with addressing via program block
● TCP via OUC blocks with the following SDTs: TCON_QDN, TCON_QDN_SEC
● SNMP
When using IPv6 addresses, make sure to configure the DNS server accordingly.
Access to the Web server of the CPU
Via the LAN interface of the CP, you have access to the Web server of the CPU. With the aid
of the Web server of the CPU, you can read out module data from a station.
Note the special description of the Web server; refer to the section Guide to the
documentation (Page 9)
Note
Web server access using the HTTPS protocol
The Web server of a SIMATIC S7-1500 station is located in the CPU. For this reason, when
there is secure access (HTTPS) to the Web server of the station using the IP address of the
CP 1543-1, the SSL certificate of the CPU is displayed.
CP 1543-1
Operating Instructions, 12/2019, C79000-G8976-C289-08
Product overview, functions
2.2 Further functions
13