Performance data
2.3 Characteristics of S7 communication
CP 343-1 Lean
18 Equipment Manual, 01/2023, C79000−G8976−C198−09
Also:
• Further TCP connections for Web diagnostics
• PROFINET IO
– As PROFINET IO device:
1 PROFINET connection to a PROFINET IO controller
or
– As shared device:
2 PROFINET connections to 2 PROFINET IO controllers
2.3 Characteristics of S7 communication
Number of connections
Table 2- 2 Number of connections for S7 communication
Number of connections for S7 communication via
Industrial Ethernet for:
• Operator control and monitoring functions
(HMI)
• S7 connections configured at one end
Maximum 4 (one-ended connections)
The number depends on the CPU type being used; the valid values can
be found in /1/ (Page 73).
LAN Interface - data record length per protocol unit
• sending
• receiving
• 240 bytes / PDU
• 240 bytes / PDU
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