Siemens SCALANCE X-200 - Manual (Page 27)

Product Characteristics
4.2 SCALANCE X208
4.2.7 C-PLUG Configuration Memory
Area of Application
The C-PLUG is an exchangeable medium for storage of the configuration and project
engineering data of the basic device. This means that the configuration data remains
available if the basic device is replaced.
How It Works
Power is supplied by the end device. The C-PLUG retains all data permanently when the
power is turned off.
If an empty C-PLUG (factory settings) is inserted, all configuration data of the SCALANCE X-
200 is saved to it when the device starts up. Changes to the configuration during operation
are also saved on the C-PLUG without any operator intervention being necessary.
A basic device with an inserted C-PLUG automatically uses the configuration data of the C-
PLUG when it starts up. This is, however, only possible when the data was written by a
compatible device type.
This allows fast and simple replacement of the basic device. If a device is replaced, the C-
PLUG is taken from the failed component and inserted in the replacement. The first time it is
started up, the replacement device has the same configuration as the failed device except
for the MAC address set by the vendor.
Using a Previously Written C-PLUG
If you want to insert a C-PLUG that has already been written to in a new basic device
requiring a different configuration, you must format the C-PLUG using the delete function in
Web Based Management following device startup. If the C-PLUG was written by an
incompatible device type, the basic device will not start up fully and signals an error. The
delete function can nevertheless be used. When the device next starts up, the current
configuration data of the basic device is written to the C-PLUG.
Diagnostics
Inserting a C-PLUG that does not contain the configuration of a compatible device type,
inadvertently removing the C-PLUG, or general malfunctions of the C-PLUG are indicated by
the diagnostic mechanisms of the switch (LEDs, PROFINET, SNMP, WBM, etc.).
Inserting in the C-PLUG Slot
The C-PLUG is not supplied with the devices of the SCALANCE X-200 product line. It is
available as an optional accessory.
The slot for the C-PLUG is located on the back of the device.
To insert the C-PLUG, remove the screw cover. The C-PLUG is inserted in the receptacle.
The screw cover must then be closed correctly.
Industrial Ethernet SCALANCE X-100 and SCALANCE X-200 Product Line
Commissioning Manual, 1,
4-13