Given medium size(?) installation:
3 x Quattro 5kVA in 3-phase configuration
2 x MPPT 250/85 - evidently DC coupled
1 x Fronius Symo - AC coupled
1 x Venus GX
on last count, the docs mention a total of 13 (2 x 1 of the MPPTs, 2 in the Venus GX and 9 in the Quattros) programmable relays, where the 9 (3 x 3) of the Quattros probably behave like just 3 (yes?) in sync.
I'm missing the relay functions in Venus and Quattros under ESS operation. There is docs for the MPPT relay functionality.
Ideally, I would like the Venus GX relays to indicate various "excess energy" states. I can get a "battery full", but on top of that I would need
* "MPPTs are (about to) being throttled"
* "Fronius is (about to) being throttled"
So this could trigger some consumers to shave off some of the excess energy. HowTo?