Siemens SIMATIC NET ET 200SP Operating Instructions Manual page 15

● Open User Communication (OUC)
OUC via program blocks with the following protocols:
– TCP/IP
– ISO-on-TCP
– UDP
The CP 1543SP-1 supports Secure OUC.
You will find the program blocks supported by the three CP types in the section Program
blocks (Page 81).
● E-mail using program blocks
● HTTP / HTTPS
Via HTTP / HTTPS you can access the Web server of the CPU.
For telecontrol communication of the CP 1542SP-1 IRC, see section Telecontrol
communication (CP 1542SP-1 IRC) (Page 16).
For information on the Security functions of the CP 1543SP-1, refer to the section Security
functions (CP 1542SP-1 IRC, CP 1543SP-1) (Page 20).
CP 154xSP-1
Operating Instructions, 12/2019, C79000-G8976-C426-05
Application and functions
1.3 Communications services
15