Frequency converter debugging and upgrading device and method based on network communication

The invention belongs to the technical field of network communication and discloses a frequency converter debugging and upgrading device and method based on network communication. A program completedthrough field debugging is directly downloaded to a lower computer through a main program and a communication program of the lower computer, historical data query is carried out through cooperation with an upper computer, abnormal waveforms generated when faults occur are analyzed, and the faults are checked. Monitoring and debugging of a frequency converter are realized in a network communicationmode, and various parameters of the frequency converter can be remotely debugged; an on-line program upgrading function of the frequency converter is added, and a DSP program is programmed on line through a communication protocol and a network communication chip between the upper computer and the frequency converter; through cooperation of the upper computer and the lower computer, the function of a virtual instrument is