Performance Data; General Characteristic Data - Siemens S7-400 Equipment Manual

Performance data

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
Total number of connections on Industrial Ethernet
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).
CP 443-1 Advanced
Equipment Manual, 03/2023, C79000-G8976-C256-07
Explanation / values
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.
2
21