Siemens SIMOTION D4x5-2 Commissioning And Hardware Installation Manual page 377

Backup in the boot sector
The license key is stored in the "KEYS" directory on the CF card. When the SIMOTION D
Control Unit is ramped up for the first time, the license key is backed up in the boot sector of
the CF card.
A license key saved in the boot sector cannot be deleted by means of a user operation; nor
can it be deleted by formatting the CF card or rewriting the boot loader.
If the keys.txt file is no longer present on the CF card (e.g. because the "KEYS" directory has
been deleted), it will be written again from the boot sector to the "KEYS" directory while the
SIMOTION D Control Unit is ramping up. The license key can be changed at any time (e.g.
through relicensing). At the next power-up, the license key is backed up in the boot sector
again.
Loss of the license key
In the event of the loss of a license key, a copy can be obtained via the Web License Manager
at the following Internet address (http://www.siemens.com/automation/license). You require
the hardware serial number printed on the CF card to do this. You can display the associated
license key in the Web License Manager. The license file (Keys.txt) is also offered as download.
Notes for Keys.txt
● If a firmware card image is unpacked on the CF card, a KEYS directory is not available per
default.
● If the CF card ramps-up without a KEYS directory in a controller, an empty file structure
(\KEYS\SIMOTION) is created.
● The keys.txt must be stored in this directory (\KEYS\SIMOTION\keys.txt).
● If the directory contains a keys.txt with an invalid license key, this is deleted from the keys.txt
when the controller ramps up, i.e. the keys.txt file exists, but is empty.
● If the directory contains a keys.txt with a valid license key, this is also stored in the boot
sector of the CF card as backup when the controller ramps up.
● The keys.txt can be written online via SCOUT, with a CF card reader, or via a set up remote
access (FTP).
● When licensing via the Web License Manager, you receive a keys.txt that you must store
on the CF card under \KEYS\SIMOTION
● It is also possible to create this text file yourself (without formatting) with a text editor (e.g.
Notepad). In this case, make sure that only the license key and a line break (CR/LF) is
contained in the file.
● If the SF LED flashes slowly in red (0.5 Hz) after the control has ramped up, then either the
keys.txt file is faulty (error in the license key, formatting or file/directory name) or the
licensing is not adequate for the used objects that require a license.
SIMOTION D4x5-2
Commissioning and Hardware Installation Manual, 03/2018, A5E33441636B
Service and maintenance
8.5 SIMOTION CompactFlash card
377