Siemens SIMOTION D410 Commissioning Manual page 46

Commissioning (hardware)
3.5 User memory concept
Via the menu "Options" > "Settings ..." > "Download", you can set whether current values are
to be copied to the RAM and configuration data loaded to the PG with "Copy RAM to ROM"
using the option "Transfer current values to RAM with copy RAM to ROM".
Note
The "Copy current data to RAM" command does not transfer the values of the system
variables to the RAM memory. This means that "Save to memory card (Copy RAM to ROM)"
or "Save in the engineering project (Load CPU / drive unit to PG)" is not possible.
In order to ensure that system variable values can also be saved to the engineering project
and memory card, the system variable values must be changed OFFLINE and then
downloaded to the target device and saved.
Startup of SIMOTION D410
The SIMOTION Kernel is loaded from the CF card to the "volatile SIMOTION data" area during
startup of SIMOTION D410.
Volatile SIMOTION data are lost if you shut down the SIMOTION D410 module after the
download. When the unit is powered up again, the following data are loaded from the CF card:
● Technology packages and user data to the "volatile SIMOTION data" area
● IP and DP parameters to the "non-volatile SIMOTION data" area
Backing up non-volatile SIMOTION data
You have the following options for backing up non-volatile SIMOTION data on the CF card:
● In the user program
● Using a switch setting (SIMOTION D410 service selector switches) or SIMOTION IT web
On the system side, this system function ensures that a consistent overall image of the non-
volatile SIMOTION data is always available the next time the unit is switched on, even if there
is a power failure during backup. An already existing backup file is renamed to
"PMEMORY.BAK" before a new backup file is generated. If the save operation to the new
backup file fails (e.g. because the capacity of the CF card is insufficient), this backup copy of
the backup file is used the next time an attempt is made to restore the non-volatile SIMOTION
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With the _savePersistentMemoryData system function, the user program can back up the
non-volatile SIMOTION data content to the CF card. This ensures that the retain variables
and the absolute encoder position are backed up in the event that a spare part is used. The
contents are saved to the "PMEMORY.XML" backup file in the "USER\SIMOTION"
directory.
server
For information on this, see Section Diagnostic data and non-volatile SIMOTION data
(Page 203). The contents are saved to the "PMEMORY.XML" backup file in the "USER
\SIMOTION\HMI\SYSLOG\DIAG" directory.
SIMOTION D410
Commissioning Manual, 04/2014