Siemens SIMATIC S7-1500 Function Manual page 71

Open User Communication
6.3 Instructions for Open User Communication
Protocol
Modbus TCP
E-mail
FTP
This protocol can only be used with the CM 1542-5
1
This protocol can only be used with the CP 1543-1
2
User-defined data type
3
The following table shows you the different connections of the Secure Open User
Communication and the matching system data types and instructions.
Secure OUC connection
Secure TCP connection from an
S7-1500 CPU as TLS client to a
third-party PLC (TLS server)
Secure TCP connection from an
S7-1500 CPU as TLS server to a
third-party PLC (TLS client)
Secure TCP connection between
two S7-1500 stations
Secure connection to a mail serv-
er
2
Secure Modbus TCP connection
Also possible for CP 1543-1
1
Secure connection to a mail server also possible with CP1543-1 und TMAIL_C (V4.0)
2
70
2
System data type
TCON_IP_v4
•
TCON_QDN
•
TCON_Configured
•
TMAIL_v4
•
TMAIL_v6
•
TMAIL_FQDN
•
FTP_CONNECT_IPV
•
4
3
FTP_CONNECT_IPV
•
6
3
FTP_CONNECT_NA
•
ME
3
System data type
TCON_QDN_SEC
•
TCON_IP_V4_SEC
• 1
TMAIL_V4_SEC
•
TMAIL_QDN_SEC
•
TCON_IP_V4_SEC
• 1
TCON_QDN_SEC
•
Instructions
MB_CLIENT
•
MB_SERVER
•
TMAIL_C
•
FTP_CMD
•
Instructions
TSEND_C/TRCV_C
•
TCON, TSEND/TRCV
•
TMAIL_C (V5.0 or higher)
•
MB_Client
•
MB_Server
•
Function Manual, 11/2019, A5E03735815-AH
Communication