Description of the device
4.7 PLUG
SCALANCE W788-x / W748-1
34
Operating Instructions, 03/2022, A5E03678333-17
NOTICE
Loss of the degree of protection
When the cover is not mounted correctly, the device loses its degree of protection.
Position
The PLUG slot is on the top of the device housing under a cover, see Device description
(Page 21).
Function
The device supports the following modes of operation:
•
Without PLUG
The device saves the configuration data in the internal memory. This mode is active
when no PLUG is inserted.
•
With PLUG
If an unwritten PLUG (factory status or deleted with Clean function) is used, the local
configuration already existing on the device is automatically stored on the inserted
PLUG. If the PLUG contains a license, additional functions are also enabled.
A device with a written and accepted PLUG ("ACCEPTED" status) uses the
configuration data of the PLUG automatically when it starts up. Acceptance is
possible only when the data was written by a compatible device type.
One exception to this can be the IP configuration if it is set using DHCP and the
DHCP server has not been reconfigured accordingly. Reconfiguration is necessary if
you use functions based on MAC addresses.
The configuration stored on the PLUG is displayed over the user interfaces.
If changes are made to the configuration, the device stores the configuration directly
on the PLUG, if this is in the "ACCEPTED" status. The internal memory is neither read
nor written.
