The solar controller is the solar charge discharge controller, is used in solar power generation system, the control of multiple solar array on the automatic control equipment of battery and battery for solar inverter load power supply. The solar controller adopts high-speed CPU microprocessor and high precision A/D analog-to-digital converter, a microcomputer data acquisition and monitoring system. Can the working state of the current rapid acquisition of photovoltaic system, stayinformed PV station, and with the accumulation of PV historical data station, provides accurate and sufficient basis for the rationality and reliability of test system component quality evaluation PV system design. In addition, the solar controller has the function of serial communication and data transmission. The number of photovoltaic system sub station centralized management and remote control.