The APPLy command is used to set both the 
voltage and current. The voltage and current will 
be output as soon as the function is executed if the 
programmed values are within the accepted range. 
An execution error will occur if the programmed 
values are not within accepted ranges.   
The Apply command will set the voltage/current 
values but these values will not be reflected on the 
display until the Output is On or if the 
DISPlay:MENU:NAME 3 (set menu) command is 
used.