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9
Internal storage and external storage devices
Any external storage device to be used with the VCM-3 must be formatted with a compatible file
system format.
Currently supported formats for the USB and SD ports are:
FAT32, exFAT and ext4 filesystems.
A maximum size of 1TB storage devices is currently supported by VCM-3.
The VCM-3 supports and accepts 2 predefined labels for the storage device. If correctly labelled the
storage device is ready for use when the storage device is fully inserted.
Label types
HISTORY
A storage device with this label can be used for extra history buffer storage.
The storage device must be inserted into the VCM-3 before the setup change is
made.
The external history storage is enabled via the VCM-3 Homepage by selecting
Application Setup > History > Storage Location > External
EXT_STORAGE
A storage device with this label can be used for Time Waveform data storage if
configured in the VCM-3 template.
Device will be available on /mnt/ext_storage
It is possible to use a combination of SD and USB. A label can only be used once!
NOTE!
Before removing a storage device, the VCM-3 must be powered down.
9.1
External storage
– SD card
SD Information
The VCM-3 bus interface supports SD, SDHC and SDXC
with a default bus speed of 12.5 MB/s.
UHS type bus formats are
not
supported.
To get the maximum writing speed (12MB/s), Class 10 (C10)
or faster cards should be used.
SD card storage devices must be pre-labeled
"EXT_STORAGE
" or “HISTORY“ to be accepted by the
VCM-3.
It is possible to use a combination of SD and USB
A label can only be used once!
