Simotion C Memory Reset - Siemens SIMOTION C 230-2 Operating Instructions Manual

8.6.2

SIMOTION C memory reset

Introduction
During the memory reset, the "volatile data" in the RAM of the SIMOTION C and the "non-volatile
data" in the NVRAM, except for the communication configuration (baud rates, network
addresses, etc.), is deleted. The data on the MMC is retained during the memory reset.
You must perform a memory reset of the SIMOTION C:
• When you want to undo changes you have made to your user data (programs, configuration
data, parameter assignments) that you have not backed up with the "Copy RAM to ROM"
menu command.
• If the SIMOTION C requests a memory reset with a flashing STOP LED (slow flashing) (e.g.
micro memory card has been removed).
• The "non-volatile data" does not match the project on the MMC and therefore an error occurs.
You can perform the memory reset online via SIMOTION SCOUT or offline via the mode selector
on the SIMOTION C.
Data deleted on memory reset
The following data is deleted during a memory reset:
• User data (programs, configuration data, parameterizations, task configuration)
• Technology packages
• Retain TO (absolute encoder adjustment)
• Retain variables
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.
Note
Absolute encoder data is deleted during a memory reset operation and must therefore be
readjusted after the memory reset.
Reset-proof data
The following data is retained during a memory reset:
• TCP/IP and DP parameters
• Diagnostic buffer
• Data saved with the_savePersistentMemoryData, _saveUnitDataSet, exportUnitDataSet and
RAMtoROM commands
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
data after the memory reset. Users can therefore force the restoration of non-volatile data by
means of memory reset.
• Licenses
SIMOTION C
Operating Instructions, 11/2022, A5E33441428B
Commissioning
8.6 Deleting data
147