Advanced device functions
5.4 Buffer memory MRAM (option)
SIMATIC IPC277D
Operating Instructions, 12/2016, A5E03409486-AE
63
• Add folder
fbwfmgr /addexclusion C: \Test fold-
er
• Remove file
fbwfmgr /removeexclusion
C: \Test.txt
• Remove folder
fbwfmgr /removeexclusion C: \Test
folder
Call up the help function
Instructions on FBWF
(http://msdn.microsoft.com/en-us/library/aa940926(WinEmbedded.5).aspx)
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.
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