Controllers for stand-alone systems
The controller is at the heart of the working of a stand-alone system. It must ensure the protection of the batteries from overload (from the solar generator) and from deep discharge (by cutting off supply to the users). It can also control the starting of a back-up generator.
The "Controllers for stand-alone systems" section of PVsyst provides several tools to understand and analyze their behaviour.
Follow the link to enter the section.