Siemens SIMOTION D4 5-2 Series Commissioning And Hardware Installation Manual page 286

Commissioning (software)
6.18 Deleting data
Data deleted on memory reset
The following data is deleted during a memory reset:
● User data (units, configuration data, parameter settings, task configuration)
● Technology packages
● Retain TO (absolute encoder adjustment)
● Retain variables
Note
Absolute encoder data is deleted during a memory reset and must, therefore, be
readjusted after the memory reset.
Data retained during memory reset
The following data is retained during a memory reset:
● TCP/IP parameters and DP parameters
● Diagnostic buffer
● Data saved with the _savePersistentMemoryData, _saveUnitDataSet or
SIMOTION data after the memory reset. Users can therefore force the restoration of non-
● Licenses
● SINAMICS NVRAM data
The technology packages and user data (configuration data, programs, parameter
assignments) that were previously backed up on the CompactFlash card using the "Copy
RAM to ROM" menu command will be transferred to the "non-volatile SIMOTION data" area
of the SIMOTION D4x5-2 during the next power-up. Thus, an existing configuration on the
CompactFlash card is loaded to the SIMOTION device following the memory reset.
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Retain variables are variables in the interface or implementation section of a UNIT that
are declared with VAR_GLOBAL RETAIN or global device variables with the RETAIN
attribute.
_exportUnitDataSet system functions and with the "Copy RAM to ROM" function
If backup files (PMEMORY.XML/PMEMORY.BAK) have been backed up with
_savePersistentMemoryData, the data in these files is backed up again to the non-volatile
volatile SIMOTION data by means of memory reset. This also includes the absolute
encoder position.
Commissioning and Hardware Installation Manual, 02/2012
SIMOTION D4x5-2