Siemens SIMATIC IPC477D Operating Instructions Manual page 91

Comparison between EWF and FBWF
● You should prefer FBWF, because it is more flexible in its configuration and allows
immediate writing without rebooting.
● If you use HORM or compressed NTFS, EWF is indispensable.
Configuring FBWF
FBWF can be configured in command console using the program FBWFMGR.EXE.
Note
• Observe the following syntax: Enter a space after the drive designation colon.
• Changes for direct write access only take effect after rebooting.
• Only existing files and folders can be entered in the exception list.
Function
Display the current FBWF status
Enable FBWF after the next startup
Write to protected files
Adding/removing elements in the exception list:
•
•
•
•
Call up the help function
Detailed instructions on FBWF are available on the Internet
us/library/aa940926(WinEmbedded.5).aspx).
SIMATIC IPC477D, IPC477D PRO
Operating Instructions, 07/2015, A5E31347228-AD
CAUTION
Data loss with several write filters
Both EWF and FBWF are preinstalled in the SIMATIC IPC images. If several writer
filters are active on one partition at the same time, you may experience data loss. This
may damage the machine or plant.
Make sure that you only activate one write filter for each partition.
Add file
Add folder
Remove file
Remove folder
Operating the device and device functions
5.6 Extended device functions
Command
fbwfmgr /displayconfig
fbwfmgr /enable
fbwfmgr /commit c: \Test.txt
fbwfmgr /addexclusion C: \Test.txt
fbwfmgr /addexclusion C: \Test fold-
er
fbwfmgr /removeexclusion
C: \Test.txt
fbwfmgr /removeexclusion C: \Test
folder
fbwfmgr /?
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