NOVELTY - The voltage generated in each solar cell module comes from multiple solar cell modules and multiple sensors detect the current. A serial communications line connects multiple sensors to object hardware with predetermined line numbers. The data-collecting equipment stores voltage and current data from the sensors. The monitoring terminal connects the data-collecting equipment to each of the sensors through both wired and wireless communications network, monitoring the situation of the solar-power generation system.    USE - Photovoltaic monitoring module for solar power generating systems.    ADVANTAGE - The system configuration monitors the condition of the modules, thus simplifying the facility, reducing maintenance cost, ensuring the flexibility of the facility and enhancing the competitive edge of the system. Using the solar cell module identification, operational details on solar power generation capacity can be determined per module, thus pinpointing and confirming specific abnormalities. It directs repair and maintenance procedures to a specific module, thus reducing unnecessary labor. The communications port can cover multiple lines, thus reducing the number of cables. Communication has the option of wired or wireless mode, thus ensuring reliability of the system.    DETAILED DESCRIPTION - The voltage generated in each solar cell module comes from multiple solar cell modules and multiple sensors detect the current. A serial communications line connects multiple sensors to object hardware with predetermined line numbers. An object sends the request signal attributed to a particular line number among the sensors on the data-collecting equipment and undergoes a process that successively copies the request signal from the object sending the request signal and the adjacent object up to the last one. The data-collecting equipment stores voltage and current data from the sensors. The monitoring terminal connects the data-collecting equipment to each of the sensors through both wired and wireless communications network, monitoring the situation of the solar-power generation system. The wireless local area network uses a Zigbee configuration.    DESCRIPTION OF DRAWING(S) - The drawing is a block diagram of the photovoltaic module monitoring system (Drawing includes non-English language text).