Deployment planning
4.4 C-PLUG (configuration plug)
SCALANCE S
28 Commissioning and Hardware Installation Manual, 05/2016, C79000-G8976-C266-06
Inserting and removing the C-PLUG
The slot for the C-PLUG is located on the back of the device. You insert the
C-PLUG as follows:
1. Remove the M32 plug.
2. Insert the C-PLUG in the intended slot.
3. Then close the slot with the M32 plug.
Image 4-2 Inserting the C-PLUG in the device and removing the C-PLUG from the device with a
screwdriver
If an empty C-PLUG (factory settings) is inserted, all configuration data of the SCALANCE S
is shifted 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. After it has
started up, the replacement device has the same device configuration as the failed device.
Note
Consistent project data - adapting the MAC address
After replacing the
device with a spare, the configuration data should be consistent. To
achieve this, you should adapt the MAC address from the project engineering to the MAC
address printed on the replacement device.
If you use the previously configured C_PLUG of the device
you are replacing, this is not
absolutely necessary to start up and run the device.
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