Linear Sweep Program - Keithley 2500 User Manual

H-6 Example Programs

Linear sweep program

The program listing below performs a linear sweep as covered in Section 9. This program
sets up the following operating modes:
• Source and measure channel: channel 2
• Source mode: sweep
• Current range: 20mA
• Start voltage: 1V
• Stop voltage: 10V
• Step voltage: 1V
• Source delay: 100ms
' Linear Sweep Program
OPEN "IEEE" FOR OUTPUT AS #1
OPEN "IEEE" FOR INPUT AS #2
PRINT #1, "INTERM CRLF"
PRINT #1, "OUTTERM LF"
PRINT #1, "REMOTE 25"
CLS
PRINT #1, "OUTPUT 25;*RST"
PRINT #1, "OUTPUT 25;:FORM:ELEM CURR2"
PRINT #1, "OUTPUT 25;:SENS2:CURR:RANG 20e-3" ' Enable 20mA measure range.
PRINT #1, "OUTPUT 25;:SOUR2:VOLT:START 1" ' 1V Ch. 2 start voltage.
PRINT #1, "OUTPUT 25;:SOUR2:VOLT:STOP 10" ' 10V Ch. 2 stop voltage.
PRINT #1, "OUTPUT 25;:SOUR2:VOLT:STEP 1" ' 1V Ch. 2 step voltage.
PRINT #1, "OUTPUT 25;:SOUR2:VOLT:MODE SWE" ' Select Ch. 2 source sweep mode.
PRINT #1, "OUTPUT 25;:SOUR2:SWE:RANG AUTO" ' Ch. 2 auto source range mode.
PRINT #1, "OUTPUT 25;:SOUR2:SWE:SPAC LIN" ' Ch. 2 linear sweep mode.
PRINT #1, "OUTPUT 25;:TRIG:COUN 10"
PRINT #1, "OUTPUT 25;:SOUR2:DEL 0.1"
PRINT #1, "OUTPUT 25;:OUTP2 ON"
PRINT #1, "OUTPUT 25;:READ?"
PRINT #1, "ENTER 25"
LINE INPUT #2, R$
PRINT "Sweep data: "; R$
PRINT #1, "OUTPUT 25;:OUTP2 OFF"
END
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Models 2500 and 2502 User's Manual
' Open IEEE-488 output path.
' Open IEEE-488 input path.
' Set input terminator.
' Set output terminator.
' Restore GPIB defaults.
' Select channel 2 measure data.
' Trigger count = sweep points.
' Source delay = 0.1s.
' Turn on channel 2 output.
' Trigger and acquire readings.
' Address 2500 to talk.
' Input sweep reading string.
' Print reading string.
' Turn off channel 2 output.