Siemens CP 343-1 User Manual

Performance data
2.6 Characteristic data of the integrated switch
CP 343-1
Manual, 12/2018, C79000−G8976−C201-08
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2.6
Characteristic data of the integrated switch
Learning addresses / deleting addresses (aging time)
The switch integrated in the CP (PROFINET interface) reads the source addresses included
in the data packets. The switch therefore learns the addresses of the end devices connected
via a port.
If the switch receives a data packet, it directs this packet only to the port via which the
appropriate end node can be reached.
The switch monitors the age of the learned addresses. Addresses that exceed the "aging
time" are deleted. The aging time is 5 minutes.
Ports can be deactivated individually
The ports of the switch integrated in the CP can be deactivated individually in STEP 7 /
HW Config. This can, for example, be used for service purposes.
To do this, open the properties dialog of the relevant port and select the "disabled" setting
under "Options > Transfer medium / duplex".
The port is turned off completely when it is disabled. The corresponding LED on the device
(for example X1P1) is then turned off.

Siemens CP 343-1 Specifications

General

Product Type Designation	CP 343-1
Power Supply	24 V DC
Protection Class	IP20
Product Type	Communications processor
Interface	Ethernet
Data Transmission Rate	10/100 Mbit/s
Protocols Supported	TCP/IP, UDP
Number of Ports	1
Operating Temperature	0 to 60 °C