Configuration and operation
6.13 Programmed communication connections
CP 343-1 Lean
Equipment Manual, 01/2023, C79000−G8976−C198−09
55
6.13 Programmed communication connections
6.13.1 Programmed communication connections with FB55 IP_CONFIG
Downloading the configuration using FB55 IP_CONFIG
IP_CONFIG allows programcontrolled transfer of the configuration data.
If the CP is in PG STOP mode and the configuration is downloaded using IP_CONFIG, the CP
then changes automatically to RUN.
6.13.2 Programmed communications connections - assigning parameters to the
ports
The CP supports the following settings when assigning parameters to the ports in the
parameter block for TCP connections and UDP connections:
• SUB_LOC_PORT parameter
The port can be specified as an option when the connection is established actively.
• SUB_REM_PORT parameter
The port can be specified as an option when the connection is established passively.
6.14 Permitted length of ICMP packets
Permitted length of ICMP packets
Pings with a packet size of more than 1000 bytes are evaluated as an attack and filtered by
the CP. This response is intentional and improves the robustness of the CP in an industrial
environment.
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