Through Internet or LAN to make the instrument with GPIB interface be a long distance distributive measuring system is one of the application and development hotspots in nowadays measurement and control field.Pointing to this problem,based on the basic concept of the DataSochet technology and taking the Fluke 8840A digital voltmeter as an example,in this paper the control method of GPIB interface instrument is introduced,through the LAN under the LabVIEW programming development environment and using the Dat...