Keithley 6514

Range, Units, Digits, Rate, and Filters 6-5
Programming example — range and digits
The following command sequence selects the 200V range and sets display resolution to 3:
*RST ‘ Restore RST defaults.
VOLT:RANG 200 ‘ Set V function to 200V range.
DISP:DIG 3.5 ‘ Set display resolution to 3½ digits.
Commands Description Default
:CURRent Measure current:
:RANGe Range selection:
[:UPPer] <n> Specify expected reading; -0.021 to 0.021 (A). 200µA
: AUTO <b> Enable or disable autorange. (see Note)
:ULIMit <n> Specify upper range limit for autorange; -0.021 to 0.021 (A). 20mA
:LLIMit <n> Specify lower range limit for autorange; -0.021 to 0.021 (A). 20pA
:RESistance Measure resistance:
:RANGe Range selection:
[:UPPer] <n> Specify expected reading; 0 to 2.1e11 (Ω). 200kΩ
: AUTO <b> Enable or disable autorange. (see Note)
:ULIMit <n> Specify upper range limit for autorange; 0 to 2.1e11 (Ω). 200GΩ
:LLIMit <n> Specify lower range limit for autorange; 0 to 2.1e11 (Ω). 2kΩ
:CHARge Measure charge:
:RANGe Range selection:
[:UPPer] <n> Specify expected reading; -21e-6 to 21e-6 (C). 200nC
: AUTO <b> Enable or disable autorange. (see Note)
:LGRoup <name> Select autorange group; HIGH or LOW HIGH
For Digits:
DISPlay DISPlay Subsystem:
:DIGITs <n> Set display resolution; 4 to 7, where: 6
4 = 3½-digit resolution
5 = 4½-digit resolution
6 = 5½-digit resolution
7 = 6½-digit resolution
Note: Rational numbers can be used. For example, to set 4
resolution, send a value of 4.5 (the 6514 rounds it to 5).
Note: *RST default is ON and SYSTem:PRESet default is OFF.
Table 6-2 (cont.)
SCPI commands — range and digits