I have an instrument (a complicated RF voltage source) that I have been controlling from PuTTy, which is rather a cumbersome interface. I want to control the instrument though LabVIEW. I have never used the VISA resources commands, I always used the LABVIEW provided VIs of the instrument I am interfacing which don't exist for this. Right now in PuTTy, to change say the frequency I enter: <freq 3, 150> followed by <latch 3> to set the frequency to 150 MHz. Can someone help me construct the equivalent LabVIEW code using the write and read in VISA. Also, to access the instrument through PuTTY I have to first enter the command: <soft on> to put it in software mode, can you also help me code this as well. I appreciate all the help.