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Description of the device
3.8 Configuration License PLUG
Position
The CLP slot is at the bottom of the device enclosure under a cover, see Reset button (Page 26).
Function
Devices with a CLP slot support the following operating modes:
• Without CLP
The device saves the configuration data in the internal memory. This mode is active when no
CLP is inserted.
• With CLP
In the startup phase:
– When an empty CLP (delivery state) is inserted into the device, the device automatically
– When a CLP with data is plugged into a device, the device automatically adopts the
– If the CLP contains a license, additional functions are also enabled.
During operation:
– During operation, changes to the configuration are saved on the CLP and in the internal
– The configuration data of the device is stored in a secured memory area of the CLP. This
– The device checks whether a CLP is inserted at one second intervals. If the device detects
– The device signals deviations from normal operation of the CLP (e.g., incompatible data,
The procedure for inserting and removing the CLP can be found in the section "Replacing a
CLP (Page 54)".
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backs up the configuration data on the CLP during startup. After that, it behaves like a CLP
with data.
configuration of the CLP during the startup phase. The prerequisite for this is that the
configuration 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.
Note
If the device was configured at some time with a CLP license, the device can no longer be
used without this CLP. To be able to use the device again, reset the device to the factory
settings.
memory.
secured memory area can only be accessed via the authentication of the Siemens device.
that the CLP has been removed, it restarts automatically.
NOTICE
Operating risk - Danger of data loss
Only pull and plug the CLP when the device is de-energized.
incorrect operation or malfunctions) via the existing diagnostics mechanisms (e.g., LEDs
or user interfaces).
Operating Instructions, 02/2023, C79000-G8976-C628-05
SCALANCE MUM856-1
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