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Buffer Memory Nvram - Siemens simatic ipc227e Operating Instructions Manual

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Commissioning the device and device functions
4.4 Advanced device functions
Call up the help function
See also
Instruction for File Based Write Filter

Buffer memory NVRAM

The motherboard is equipped with an NVRAM that applications can use to back up data in
the event of a power failure. Failure of the supply voltage for a duration longer than 5 ms is
indicated by the DC FAIL signal.
At least enough time is provided for copying data to the NVRAM so that 128 kB can be
backed up with the full configuration.
A memory window with a maximum size of 512 KB can be displayed by means of PCI
address register. The base address is initialized via the BIOS (see section "Input/output
address areas (Page 116)").
A corresponding function is implemented there for using the NVRAM under WinAC RTX.
Add folder
Remove file
Remove folder
fbwfmgr /addexclusion C: \Test fold-
fbwfmgr /removeexclusion
C: \Test.txt
fbwfmgr /removeexclusion C: \Test
fbwfmgr /?
Operating Instructions, 11/2016, A5E35782395-AB


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