I have Venus OS on rpi on a boat logging BMV-712 and MPPT connected via VE Direct. I was having problem gettings the wifi to always connect, so I turned on the feature to remotely reset if the connection could not be established after one hour. Once the boat leaves port it starts logging to internal memory. It is out of wifi range so it eventually reboots every one hour after failing to connect, which wipes out the saved data. I expect it to save the data and allow it to be uploaded to VRM after wifi reconnection.
I would imagine it is easy to re-create. But if you need more info, let me know. I have recreated this at least 10 times.
I've had to disable the reboot on connection loss. One out of two times so far it did not automatically re-connect itself to wifi when returning. We'll see how it works over time.