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Siemens CP 343-1 User Manual

Siemens CP 343-1
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Configuration and operation
6.12 Programmed communication connections
CP 343-1
Manual, 12/2018, C79000−G8976−C201-08
55
6.12
Programmed communication connections
6.12.1
Programmed communication connections with FB55 IP_CONFIG
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.
6.12.2
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.
6.12.3
IP access protection with programmed communication connections
In principle, it is possible to set up communications connections using program block
IP_CONFIG (FB55) by programming and at the same time by configuring IP access
protection.
When configuring specified connections (active endpoints) in STEP 7, the IP addresses of
the partners are entered automatically in the IPACL (IP Access Control List).
Communications connections programmed with FB55 are also entered in the ACL as of
firmware version V3.0.
Please note the following point:
Note
The IP addresses of partners with unspecified connections (passive end points) are not
entered in the IP
ACL. Communication with unspecified nodes is only possible when IP
access protection is enabled if the IP addresses were entered previously in the ACL during
configuration.
How to configure IP access protection is described in the general part of this manual /1/
(Page 71).

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Siemens CP 343-1 Specifications

General IconGeneral
Product Type DesignationCP 343-1
Power Supply24 V DC
Protection ClassIP20
Product TypeCommunications processor
InterfaceEthernet
Data Transmission Rate10/100 Mbit/s
Protocols SupportedTCP/IP, UDP
Number of Ports1
Operating Temperature0 to 60 °C

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