5 Language Reference 
80  Series N5700 User’s Guide 
*IDN? 
This query requests the power supply to identify itself. It returns a 
string of four fields separated by commas. 
 
Keysight Technologies 
xxxxxA 
0 
<A.xx.xx>,<A.xx.xx> 
Manufacturer 
Model number followed by a letter suffix 
Zero or serial number if available 
Firmware revision, power supply revision 
*OPT? 
This query requests the unit to identify any installed options. A 0 
indicates no options are installed. 
*RCL <state> 
This command restores the power supply to a state that was 
previously stored in memory locations 0 through 15 with the *SAV 
command. Note that you can only recall a state from a location that 
contains a previously-stored state. 
NOTE 
All saved instrument states are lost when the unit is turned off. 
*RST 
This command resets the power supply to a factory-defined state. 
This state is defined as follows. Note that *RST also forces an ABORt 
command. The *RST settings are as follows: 
 
CAL:STAT  Off  [SOUR:]CURR:PROT:STAT  Off 
INIT:CONT  Off  [SOUR:]VOLT  0 
OUTP  Off  [SOUR:]VOLT:LIM  0 
[SOUR:]CURR  0  [SOUR:]VOLT:TRIG  0 
[SOUR:]CURR:TRIG  0  [SOUR:]VOLT:PROT  MAXimum 
*SAV <state> 
This command stores the present state of the power supply to 
memory locations 0 through 15.  
NOTE 
All saved instrument states are lost when the unit is turned off. 
*TST? 
Does nothing. This query always returns a zero.