Time division multiplexing reading method applied to serial port adapter and photovoltaic inverter

The invention relates to the technical field of data information acquisition, in particular to a time division multiplexing reading method applied to a serial port adapter and a photovoltaic inverter. The method is realized based on a serial port adapter, and the serial port adapter supports simultaneous receiving of commands of a communication serial port of wireless data acquisition equipment and a communication serial port of a photovoltaic protocol converter. And when the serial port adapter receives a reading command issued by the wireless data acquisition equipment and a reading command issued by the photovoltaic protocol converter, the serial port adapter preferentially issues the command issued by the photovoltaic protocol converter in an unvarnished transmission manner. According to the technical scheme, under the condition that communication of an original communication rod of the photovoltaic inverter is not affected, the acquisition system is supported to read and control data of the photovoltaic