C-Plug; Function Of The C-Plug - Siemens SIMATIC NET SCALANCE XP-200 Operating Instructions Manual

4.6

C-PLUG

4.6.1

Function of the C-PLUG

NOTICE
Do not remove or insert a C-PLUG during operation
A C-PLUG may only be removed or inserted when the device is turned off.
Saving the configuration data
A C-PLUG is an exchangeable storage medium for storing the configuration data of the device.
This allows fast and uncomplicated replacement of a device. The C-PLUG is taken from the
previous device and inserted in the new device. The first time it is started up, the replacement
device has the same configuration as the previous device except for the device-specific MAC
address set by the vendor.
A C-PLUG stores the current information about the configuration of a device.
Note
The device can also be operated without a C-PLUG.
How it works
Operating mode
In terms of the C-PLUG, there are three modes for the device:
• Without C-PLUG
The device stores the configuration in internal memory.
This mode is active if no C-PLUG is inserted.
• With unwritten C-PLUG
If an unwritten C-PLUG (factory status or deleted with Clean function) is used, the local
configuration already existing on the device is automatically stored on the inserted C-PLUG
during startup.
This mode is active as soon as an unwritten C-PLUG is inserted.
• With written C-PLUG
A device with a written and accepted C-PLUG uses the configuration data of the C-PLUG
automatically when it starts up. The requirement for acceptance is that the data was written
by a compatible device type.
If there is configuration data in the internal memory of the device this is overwritten.
This mode is active as soon as a written C-PLUG is inserted.
Operation with C-PLUG
The configuration stored on the C-PLUG is displayed over the user interfaces.
SCALANCE XP-200
Operating Instructions, 03/2021, C79000-G8976-C428-08
Description of the device
4.6 C-PLUG
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