Siemens SIMATIC ET 200AL, System Manual

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Communication with the redundant system S7-1500R/H
14.6 Open User Communication with the redundant system S7-1500R/H
Communication
Function Manual, 05/2021, A5E03735815-AJ
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14.6 Open User Communication with the redundant system
S7-1500R/H
The following table shows which protocols of the Open User Communication you can use for
the S7-1500R/H redundant system and the matching system data types and instructions.
Table 14- 1 Protocols, system data types and usable instructions for Open User Communication with
the redundant system S7-1500R/H
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
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)
Modbus TCP
• TCON_IP_v4
• TCON_QDN
• MB_CLIENT
• MB_RED_CLIENT
• MB_SERVER
• MB_RED_SERVER
14.6.1 Setting up the connection of the Open User Communication with the
redundant S7-1500R/H system
Introduction
The S7-1500R/H redundant system can communicate with other devices via Open User
Communication.
You set up the connections in the user program, e.g. via the "TSEND_C" instruction. The
S7-1500R/H redundant system does not support configured connections.
You can either set up the connections either via the device IP addresses or via the system IP
addresses of the PROFINET interfaces.