The data terminal is a communication device tailored for inverter data collection. It transmits the inverter’s operating status and power generation data to the Cloud platform via WiFi or 4G, enabling long-term, effective monitoring of photovoltaic power systems. This allows users to manage distributed power plants cost-effectively and efficiently, significantly simplifying maintenance. It supports MODBUS command transparent transmission, custom command configuration, local/remote firmware upgrades, inverter parameter adjustment, and remote debugging.