The color control GX manual( ) says DVCC needs:
VE.Can MPPTs with VE.Direct: v1.04
Older style VE.Can MPPT Solar Chargers (with the screen) cannot be used: they do not support the new control mechanisms.
I have a smartsolar MPPT 150/85 - TR VE.can, pn SCC115085412, sn HQ2018C8MTL, v1.04.
(The system also has a couple smartsolar 100/20s, and a pair of 24/3000/70 Multiplus units.)
This unit has no screen, but it does have a blocking plate labelled 'display option'.
So, can it use DVCC or not? It would be extremely useful for my application, but I don't much want to buy a GX and then find DVCC doesn't work...