I have a Smart Solar 150/100-Tr VE.Can connected by VE.Can to a MG Energy Master LV (With 2 x 200Ah HE batteries) and a Color Control GX. There is also a Multiplus 24/3000/70-16 connected by VE.Bus on the same system.
I'm having an occasional 'Error 67 - BMS connection lost' from the Smart Solar but I have unfortunately been unable to pinpoint what exactly is causing the issue. It never happens when the solar is isolated but randomly when solar is generating. It does not automatically recover unless I clear the issue by isolating our solar panels and reconnecting. Is this a known issue with Smart Solar VE.Can variants? Details are below. Many thanks!
Smart Solar 150/100-Tr VE.Can Firmware v̶1̶.̶0̶3̶ v1.04
MG Energy Master LV Firmware v1.22
Multiplus 24/3000/70-16 (230VAC) Firmware v469
Color Control GX Firmware v2.51