Buffer Memory Mram (Option) - Siemens SIMATIC IPC277D Operating Instructions Manual

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Call up the help function
See also
Instructions on FBWF
(http://msdn.microsoft.com/en-us/library/aa940926(WinEmbedded.5).aspx)
5.4

Buffer memory MRAM (option)

The motherboard is equipped with MRAM that applications can use to backup data on power
failure. Failure of the supply voltage for a duration longer than 5 ms is indicated by the
DC FAIL signal.
The function provides at least the time it takes to copy the data to MRAM, which means that
128 KB can be saved with a full configuration.
A memory window with a maximum size of of 512 KB can be displayed by means of PCI
address register. The base address is initialized by the BIOS.
A corresponding function is implemented in BIOS to enable the use of MRAM in
WinAC RTX.
SIMATIC IPC277D
Operating Instructions, 12/2016, A5E03409486-AE
Add folder
Remove file
Remove folder
Advanced device functions
5.4 Buffer memory MRAM (option)
fbwfmgr /addexclusion C: \Test fold-
er
fbwfmgr /removeexclusion
C: \Test.txt
fbwfmgr /removeexclusion C: \Test
folder
fbwfmgr /?
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