Programmed Communication Connections; Programmed Communication Connections With Fb55 Ip_Config; Programmed Communications Connections - Assigning Parameters To The Ports; Permitted Length Of Icmp Packets - Siemens SIMATIC S7-300 Equipment Manual

Industrial ethernet / profinet cp 343-1 lean

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6.13

Programmed communication connections

6.13.1

Downloading the configuration using FB55 IP_CONFIG

IP_CONFIG allows programcontrolled transfer of the configuration data.

Note

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

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.

CP 343-1 Lean

Equipment Manual, 01/2023, C79000−G8976−C198−09

Configuration and operation

6.13 Programmed communication connections

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