I am trying to have a relay triggered, possibly via the Venus GX, when an MPPT solar controller gets to a certain harvest level. I can do that by taking the pulse output of the TX pin on the MPPT & measuing the pulse frequency, via say an arduino, (Venus appears it may do this too...) but hoping to do that, to switch a relay say on the Venus GX, at the solar threshold level (eg 500W output.) Anyone got any ideas on how to do that?
the venus GX and the CCGX units have inbuilt gen start stop control
so ie if the battery voltage drops to say 12.5 then start the gen
when it raises to say 14 stop the gen
it can also do it via SOC or AMPS used etc etc see if this will give you the solution
these are the settings under gen stop and start
you will need to set it up
and have a BMV 712 send the soc info to the CCGX or a Multiplus/Quatro
first go to settings and set relay function as Gen auto start
then the above options will apear in the generator auto start section
