Siemens SCALANCE W788-1PRO Operating Instructions Manual page 28

Configuration Information on the C-PLUG
The C-PLUG is used to transfer the configuration of the old device to the new
dev ice when a device is replaced. When the new device sta
PLUG, it then continues automatically with exactly the same configuration as the
old device. One exception to this can be the IP configuration if it is set over DHCP
and the DHCP server has not been reconfigured accordingly.
Reconfiguration is necessary if you use WDS or redundancy and use the MAC
addresses and not the sysNames. These functions are then based on the MAC
address that inevitably changes if a device is replaced.
Note
As soon as the device is started with a C-PLUG inserted, the SCALANCE W starts
up with the configuration data on the C-PLUG.
Replacing the C-PLUG
Follow the steps below to replace a C-PLUG in a SCALANCE W78x:
1 Turn off the power to the device.
2 Remove the old SCALANCE W78x from its mounting and open the sealing
screw on the rear with a coin or broad screwdriver.
3 Remove the C-PLUG.
4 Open the sealing screw of the new device in the same way and insert the C-
PLUG of the old device.
5 Replace the sealing screws of both devices.
If a new C-PLUG is inserted in a SCALANCE W78x, the configuration stored locally
on the SCALANCE W78x is saved to the C-PLUG. If an incorrect C-PLUG (for
example from another device or a damaged plug) is inserted, the
SCALANCE W78x signals an error with the red LED. The user then has the choice
of either removing the C-PLUG again or selecting the option to reformat the C-
PLUG and use it.
Note
It is necessary that the configuration on the C-PLUG was generated with a
firmware version ≤ the firmware version on the destination device.
Example: A C-PLUG with version V3.0 cannot be used for a SCALANCE W78x
with firmware version V2.4.
Operating Instructions SCALANCE W78x
C79000-G8976-C184-07
Description of the SCALANCE W78x
rts up with the C-
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