When using the BMS VE Bus and having two or more Multi’s or Quattro’s within the system has someone got an easy solution to turn off the 2nd Multi or Quattro in an overcharge or in a discharge situation considering the first Multi or Quattro is already connected to the BMS RJ45 input/output to shut it down on either situation.
The only way I can think of is using a inverting on/off cable connected to 2 relays in series that are fed from the charge and load outputs from the BMS.