I'm new to this equipment and trying to set up a Labview VI to select 1 of 4 modules in the mainframe, and set voltages. I'm using Labview 2011 and the latest N6700A drivers. I'm not sure what to put in the "Channel" field. I assume channel is the same as power supply module number. When I enter 1 I can successfully program Module #1, but when I try to program Module#2 using a 2 in the channel input, nothing happens. Not even an error message. What is the proper syntax for addressing the different modules in the mainframe?