Keithley 2450 - Page 219

Section
3: Functions and features Model 2450 Interactive SourceMeter® Instrument
Reference Manual
3-74 2450-901-01 Rev. B/September 2013
Resistor grading SCPI code
Send the following commands for this example application:
Command Description
*RST
SENSe:FUNCtion "RESistance"
SENSe:RESistance:MODE MANual
SENSe:RESistance:RSENse ON
SENSe:NPLC 1
SENSe:AZER:ONCE
SOURce:CURRent:RANGe 0.01
SOUR:CURR 0.01
SOUR:CURR:VLIM 2
SOUR:CURR:READ:BACK ON
TRACe:POINts 10
Reset the Model 2450.
Set the instrument measure resistance in manual
ohms mode and set 4-wire remote sensing on.
Set the NPLCs to 1.
Have the instrument autozero once.
Set the instrument to source current with a range of
10 mA and a voltage limit of 2 V. Turn source
readback on.
Set the reading buffer size to 10.
DIGital:LINE1:MODE DIG, OUT
DIG:LINE2:MODE DIG, OUT
DIG:LINE3:MODE DIG, OUT
DIG:LINE4:MODE DIG, OUT
DIG:LINE5:MODE TRIG, IN
TRIGger:DIG5:IN:EDGE FALL
DIG:LINE6:MODE TRIG, OUT
TRIGger:DIGital6:OUT:LOGic NEG
TRIG:DIG6:OUT:PULSewidth 10e-6
TRIG:DIG6:OUT:STIMulus NOT1
Set the digital I/O lines 1 to 4 to be digital lines that
detect rising-edge or falling-edge triggers as input.
Set digital I/O line 5 for trigger model control,
detecting falling-edge triggers as input.
Set digital I/O line 6 for trigger model control,
detecting rising-edge or falling-edge triggers as input.
Set the output trigger logic of the trigger event
generator to negative. Set the length of time that the
trigger line is asserted to 10e-6. Set the stimulus to
create a notify event.