The instrument and the commands and the GPIB bus do not support simultaneous settings of two different channels. You have to do for example, "VSET 1,2.000000V;ISET 0.130000A;", followed by "VSET 2,2.000000V;ISET 0.130000A;". The driver does this with the Set Voltage/Current function you have in your example. You should have two of these functions in your VI instead of one Set Voltage/Current and one Application Function VI. You might be able to speed thngs up by using the Store/Recall function to retrieve a specific setting where both outputs are configured. There is still the possibility that the outputs will turn on a slightly different times. The user manual should have that information.
