Siemens S7-1500 - Wiring rules

Product overview, functions
2.6 Requirements for use
CP 1543-1
Operating Instructions, 05/2017, C79000-G8976-C289-07
21
2.6.3
Programming
Program blocks
For communications services, there are preprogrammed program blocks (instructions)
available as the interface in your STEP 7 user program.
Table 2- 1 Instructions for communications services
Protocol
Program block (instruction)
System data type
TCP Establish connection and
send/receive data via:
• TSEND_C/TRCV_C or
• TCON, TSEND/TRCV
(termination of the connec-
tion using TDISCON possi-
ble)
• TCON_IP_v4
• TCON_Configured
ISO-on-TCP
• TCON_IP_RFC
ISO
• TCON_ISOnative
UDP
• TCON, TUSEND/TURCV
(termination of the connec-
tion using TDISCON possi-
ble)
• TCON_IP_v4
E-mail
• TMAIL_C • TMail_v4
*
• TMail_v6
*
• TMAIL_FQDN
*
FTP
• FTP_CMD • FTP_CONNECT_IPV4
*
• FTP_CONNECT_IPV6
*
• FTP_CONNECT_NAME
*
• FTP_FILENAME*
• FTP_FILENAME_PART*
*User-defined data type
Table 2- 2 Instructions for configuration tasks
Function
Program block (instruction)
System data type
Configuration of the Ethernet
interface
• T_CONFIG • CONF_DATA
Refer to the documentation of the program blocks in the online help of STEP 7.