KLN Series 022014 3-41/(3-42 Blank)3.7.4 UNDERSTANDING THE COMMAND STRUCTUREUnderstanding the command structure requires an understanding of the subsystem commandtree illustrated in Figure 3-17. The “root” is located at the top left corner of the diagram. Theparser goes to the root if:• a message terminator is recognized by the parser• a root specifier is recognized by the parserStarting at the root, there are various branches or paths corresponding to the subsystems. Theroot keywords for the KLN Power Supply are :CALibrate, :DISPlay, :FETCh, :OUTPut, :SOURceand :SYSTem.FIGURE 3-17. TREE DIAGRAM OF SCPI COMMANDS USED WITH KLN POWER SUPPLYCALibrate subsystemCALDISPlay subsystemDISP:CONT:CONT?FETCh subsystemFETC:FETC?]OUTPut subsystemOUTP[:STAT][:STAT]?:OUTP:OUTP?:OUTP:PON:OUTP:PON?ROOT : (colon)SYSTem subsystemSYSTem:BEEP:BEEP?:COMM:LAN:DHCP:DHCP?:GATE:GATE?:IP:IP?:IPAD:IPAD?:MAC:MAC?:RES:SMAS:SMAS?:TEL:PORT:TEL:PORT?:ERR?:KLOC:KLOC?:LOC:REM:VERS?SOURce: subsystemSOUR:CURR:CURR?:PROT:LEV: PROT:LEV?:LIST:RTIM:RTIM?:MEM:CLS:CURR:X:CURR:X?:LIST:X?:REC:X:REC:X?:VOLT:X:VOLT:X?:VOLT:VOLT?:LIM:LOW:LOW?:PROT:LEV: PROT:LEV?
