
Agilent B1500A/B1505A Programming Guide, Edition 11 4-217
Command Reference
WI
Example
Statements
OUTPUT @B1500;"WFC 9,1,100000,5000000,50"
WI
The WI command specifies the staircase sweep current source and its parameters.
This command also clears the WV, WSV, WSI, and WNX command settings.
This command setting is cleared by the WV command.
Syntax • For Staircase Sweep Measurement:
WI chnum,mode,range,start,stop,step[,Vcomp[,Pcomp]]
• For Staircase Sweep with Pulsed Bias Measurement:
WI chnum,mode,range,start,stop,step[,Vcomp]
Parameters chnum : SMU sweep source channel number. Integer expression. 1 to 10 or 101
to 1001. See Table 4-1 on page 4-16.
mode : Sweep mode. Integer expression. Only linear sweep (mode=1 or 3) is
available for the staircase sweep with pulsed bias.
1: Linear sweep (single stair, start to stop.)
2: Log sweep (single stair, start to stop.)
3: Linear sweep (double stair, start to stop to start.)
4: Log sweep (double stair, start to stop to start.)
range : Ranging type for staircase sweep current output. Integer expression.
See Table 4-5 on page 4-22.
For the linear sweep, the B1500 uses the minimum range that covers
both start and stop values to force the staircase sweep current.
For the log sweep, the B1500 uses the minimum range that covers the
output value, and changes the output range dynamically.
For the limited auto ranging, the instrument never uses the range less
than the specified range.
start, stop : Start or stop current (in A). Numeric expression. See Table 4-6 on page
4-23, Table 4-8 on page 4-25, or Table 4-11 on page 4-27 for each
measurement resource type. start and stop must have the same polarity
for log sweep.
step : Number of steps for staircase sweep. Numeric expression. 1 to 10001.
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