说明：  采用LabVIEW编写的青智电参数测量仪8720和8920参数读取于设置程序，采用modbus通讯协议，可根据自己需要的功能修改为自己读取不同的电参数，8920只读取A相电参数，其他需要根据通讯协议自己添加。
(The parameters of 8720 and 8920 of Qingzhi electric parameter measuring instrument written by LabVIEW are read in the setting program. Modbus communication protocol is adopted. The parameters can be modified to read different electrical parameters according to their own functions. 8920 only reads phase a electrical parameters, and others need to be added according to the communication protocol.)