Siemens SIMATIC ET 200AL - Page 756

Open User Communication
6.3 Instructions for Open User Communication
Communication
70 Function Manual, 12/2017, A5E03735815-AF
This FAQ (https://support.industry.siemens.com/cs/ww/en/view/58875807) describes how to
program the TCON instruction to set up a connection for Open User Communication
between two S7-1500 CPUs.
Protocols, system data types and employable instructions for programmed setup
The following table shows the protocols of the Open User Communication and the matching
system data types and instructions.
Table 6- 3 Instructions for programmed setup of the connection
Protocol
System data type
Instructions
TCP
• TCON_QDN
• TCON_IP_v4
Establish connection and send/receive data
via:
• TSEND_C/TRCV_C or
• TCON, TSEND/TRCV or
• TCON, TUSEND/TURCV
(connection can be terminated via
TDISCON)
ISO-on-TCP
• TCON_IP_RFC
ISO according to
ISO/IEC 8073 (Class
4)
• TCON_ISOnative
1
• TCON_Configured
UDP
• TCON_IP_v4
• TADDR_Param
• TADDR_SEND_QDN
• TADDR_RCV_IP
Establish connection and send/receive data
via:
• TSEND_C/TRCV_C
• TUSEND/TURCV/TRCV
(connection can be terminated via
TDISCON)
FDL
1
• TCON_FDL
Establish connection and send/receive data
via:
• TSEND_C/TRCV_C or
• TCON, TSEND/TRCV or
• TCON, TUSEND/TURCV
(connection can be terminated via
TDISCON)
Modbus TCP
• TCON_IP_v4
• TCON_QDN
• MB_CLIENT
• MB_SERVER
E-mail
• TMAIL_v4
• TMAIL_v6
• TMAIL_FQDN
• TMAIL_C
FTP
2
• FTP_CONNECT_IPV4
3
• FTP_CONNECT_IPV6
3
• FTP_CONNECT_NAME
3
• FTP_CMD
1
This protocol can only be used with the CM 1542-5
2
This protocol can only be used with the CP 1543-1
3
User-defined data type