I am investigating the possibilities of using an IPC in connection with WinAC RTX and/or WinCC Flexible RT.
The IPC could be a Microbox 427B or a panel PC 477B, both have WinXP embedded and no normal harddrive, only flash drives (*).
As far as I understand, the Enhanced Write Filter (EWF) is critical when flash drives are used in stead of normal harddrives.
The question is then what this will mean for the eventual datalogging that we have with WinCC Flex RT.
Is it required that Windows is shutdown before turning off the IPC, otherwise data will be lost ?
Will it be necessary to install a UPS ?
Is it possible to detect a power-off and automatically initiate a shutdown of Windows ?
Or are there other methods to avoid losing data due to EWF ?
Thanks for any insight into the matter.
*: Even if a normal harddrive would be possible, one reason for switching to one of these IPCs is exactly to avoid the normal harddrive.