Link to manual and software as well as instructions on how to make the cable here. valencefiles
The internal BMS will handle cell balancing. It will not protect, I don't think but don't know for sure, against high/low voltage or temperature.
I have almost completed, should be less than two weeks, a system using overall bank temps and voltages to turn on heat, compartment fan and complete disconnect. It will also turn on/off the solar controller. It also has a data logger to log readings and also, I hope, log readings at the time any relay is triggered.
Hardware is done, I think, and since I'm really crappy at coding I have hired someone to do that for me based on what I think is needed.