Siemens S7-400 - Product Overview; Overview of the S7-400; Features of the S7-400

CP 443-1 Advanced
Equipment Manual, 03/2023, C79000-G8976-C256-07
21
Performance data
2
Note
Measured values of transfer or reaction times
Measured values of transmission and reaction times in Ethernet, PROFIBUS and PROFINET
networks for a series of configurations can be found on the Internet at the following address:
Link: (https://support.industry.siemens.com/cs/ww/en/view/25209605)
2.1 General characteristic data
Note that the maximum configuration limits of the CP also depend on the CPU type used.
Characteristic
Explanation / values
Total number of connections on Industrial Ethernet
128
The value applies to the total number of connections of the
following types:
• S7 connections
• SEND/RECEIVE connections
• FTP (FTP client)
Note: FTP connections occupy 2 TCP connections.
Example
You can, for example, operate the following combination of connections:
• 62 S7 connections or 62 H connections
• 30 ISO-on-TCP connections
• 10 TCP connections
• 10 UDP connections
• 8 ISO transport connections
• 4 FTP connections (for FTP client mode)
See section Characteristic data for FTP / FTPS mode (Page 27).