Victron energy Color Control GX Manual page 73

The GX device has a buffer to store a couple of days worth of logs internally. To extend this period, insert a microSD card or USB
stick. You can see the internal storage status in the settings.
Note that, when inserting such storage device, any internally stored logs will automatically be transferred to the inserted stick: no
data is lost.
With or without an external storage device inserted, the GX device will always keep trying to connect to the portal and transmit
all backlogged logs. That means that even with months worth of backlog, once it re-acquires an Internet connection, all of the
backlog is sent out. The data is sent in a compressed manner: sending a lot of backlogged data will use considerably less
bandwidth than than sending the data with a continuously available internet connection.
Storage device requirements
• Supported file systems for MicroSD cards or USB flash drives are FAT (12, 16, 32), ext3, ext4 and exFAT.
• SD and SDHC type microSD cards of 32 GB capacity and smaller are sold containing FAT12, FAT16 or FAT32. They can be
used without a problem, unless they are subsequently re-formatted to an unsupported file system.
Manually transferring datalogs to VRM
For devices permanently without Internet, it is possible to take the data out, and then upload it manually from a laptop.
1. Go to Settings → VRM online portal, and click Eject the storage. Make sure to never just remove the SD-card/USB-stick, this
can lead to corruption and data loss.
2. Remove the storage device and insert it into a computer or laptop that is connected to the internet.
3. Open a webbrowser, and navigate to the
4. Login and then navigate to the Installations menu:
5. Click the 'Upload GX file' option and follow instructions:
6. Remove the file from the storage device and re-insert it into the GX device. Note that uploading the same data twice does not
cause any problems; but still it is better not to do that.
With a log interval of once per minute, the required storage space roughly amounts to about 25 MB per month, depending on
the number of connected products. So with a 1 GB microSD card, you can store about 3 years of backlog. In other words, any
microSD card or USB stick should be sufficient to store the 6 months of data which VRM retains. When the storage device is full,
no more data will be logged.
If multiple storage devices are inserted, the GX device will store the data on the one inserted first. When that is removed, it
will not use the other one. Instead, it will create an internal backlog buffer. Only inserting a new one will make it switch to using
external storage again.
Network watchdog: auto-reboot
Page 67
Color Control GX Manual
VRM Portal.
VRM Portal