Siemens SIMATIC NET CP 343-1 Manual do Utilizador descarregar pdf (Página 21)

Performance data

2.6 Characteristic data of the integrated switch

CP 343-1

Manual, 10/2012, C79000−G8976−C201-07

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.

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Siemens SIMATIC NET CP 343-1 Manual do Utilizador Página 21