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Meaning in display mode D
LED color
LED status
Meaning
-
off
The port is not monitored; in other words, if a link is not
established at the port, this does not trigger the signaling
contact.
green
on
The port is monitored, in other words, if no connection was
established at the port (for example no cable inserted), this
triggers the signaling contact and an error state results.
orange
on
The port is monitored, in other words, when a valid con‐
nection exists at the port (for example non-permitted cable
inserted), this triggers the signaling contact and an error
state results.
4.5
C-PLUG
4.5.1
Area of application and function of the C-PLUG
Area of application
The C-PLUG (configuration plug) that ships with the product is an exchangeable memory
medium for storing the configuration data of the device. The device can also be operated
without a C-PLUG.
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 MAC address set by the
vendor.
Principle
The data remains stored on the C-PLUG even when power is turned off. In terms of using the C-
PLUG, there are two ways of operating the device:
• With unwritten C-PLUG
If an empty C-PLUG (factory settings or deleted with the Clean function) is inserted, all the
configuration data of the device is saved to it automatically when the device starts up.
Changes to the configuration during operation are saved without operator intervention on
the C-PLUG if this is in the "ACCEPTED" status. This depends on how you configured your
SCALANCE device. In this mode, the internal memory is neither read nor written. This mode
is active when a C-PLUG is inserted.
• With written C-PLUG
A device with an accepted C-PLUG inserted uses the configuration data of the C-PLUG
automatically when it starts up. Acceptance is possible only when the data was written by a
compatible device type.
Device description
4.5 C-PLUG
SCALANCE XR-300M PoE
30
Compact Operating Instructions, 03/2022, A5E02661178-15