Keithley 6482 - Sweep and List Program Examples

6482-901-01 Rev. A / August 2012 Return to Section Topics 16-49
Model 6482 Dual-Channel Picoammeter / Voltage Source Reference Manual Section 16: SCPI Command Reference
POINts?
:SOURce[1]:LIST:VOLTage:POINts?Query length of source 1 list
:SOURce2:LIST:VOLTage:POINts?Query length of source 2 list
Description These commands are used to determine the length of the specified source list.
The response message indicates the number of source values in the list.
Sweep and list program examples
Linear voltage sweep
Linear source 1 voltage sweep from 1 V to 10 V in 1 V increments:
*RST
SOUR1:SWE:SPAC LIN
SOUR1:VOLT:STAR 1
SOUR1:VOLT:STOP 10
SOUR1:VOLT:STEP 1
SOUR1:SWE:POIN? (returns 10)
TRIG:COUN 10
SOUR1:VOLT:MODE SWE
OUTP1 ON
INIT
List sweep
The previous linear sweep can instead be performed using a voltage list as follows:
*RST
SOUR1:LIST:VOLT 1,2,3,4,5,6,7,8,9,10
SOUR1:LIST:VOLT:POIN? (returns 10)
TRIG:COUN 10
SOUR1:VOLT:MODE LIST
OUTP1 ON
INIT
Logarithmic sweep
Logarithmic sweep from 1 V to 10 V in 5 points:
*RST
SOUR1:SWE:SPAC LOG
SOUR1:VOLT:STAR 1
SOUR1:VOLT:STOP 10
SOUR1:SWE:POIN 5
TRIG:COUN 5
SOUR1:VOLT:MODE SWE
OUTP1 ON
INIT
To determine the source values that will be generated:
Start: 1 Log
10
(Start): 1
Stop: 10 Log
10
(Stop): 2
LogStep= (Log
10
(Start) - Log
10
(Stop)) / (SWE:POIN -1)
= (1-0) / (5 - 1)
=1/ 4
=0.25