In this part. We are making virtual power supply by programming in labVIEW and connected computer to a power supply via GPIB in order to communicating. To programming, we need to construct function block diagrams and run VI with Front panel and select address of the device that we want to control. After construction and running the program. We can command or setting output of power supply directly from the computer and so, we don’t need to setting at the local panel. The second part of power supply is to make 2 channels available and to make 2 channels available, we need to add more function blocks such as Configure voltage level, Configure output enable and also add constant number to indicate channel. We checked the output of the power supply by compared the level of voltage in the front panel and at the device’s panel and connected power supply output to a digital multimeter to see of the program is working properly