13-20 Remote Operations
Programming example
The following QuickBasic 4.5 programming example will control the SourceMeter via the
RS-232 COM2 port. Place the SourceMeter into the RS-232 mode from the front panel main
menu (press MENU, select COMMUNICATION, select RS-232). When the communication
setting is changed, the SourceMeter will reset into that mode.
RD$ = SPACE$ (1500) ‘ Set string space.
CLS ‘ Clear screen.
PRINT “Set COM2 baud rate to 9600”
PRINT “Set no flow control, and CR as terminator.”
‘ Configure serial port parameters.
‘ The following values are the default settings for the SourceMeter:
ComOpen$ = “COM2: 9600,N,8,1,ASC,CD0,CS0,DS0,LF,OP0,RS,TB8192,RB8192”
OPEN ComOpen$ FOR RANDOM AS #1
‘ SourceMeter setup commands:
PRINT #1, “*RST” ‘ Reset instrument to default parameters.
PRINT #1, “:SENS:FUNC ‘RES’ “ ‘ Select ohms measurement function.
PRINT #1, “:SENS:RES:NPLC 1” ‘ Set measurement speed to 1 PLC.
PRINT #1, “:SENS:RES:MODE MAN” ‘ Select manual ohms mode.
PRINT #1, “:SOUR:FUNC CURR” ‘ Select current source function.
PRINT #1, “:SOUR:CURR 0.01” ‘ Set source to output 10mA.
PRINT #1, “:SOUR:CLE:AUTO ON” ‘ Enable source auto output-off.
PRINT #1, “:SENS:VOLT:PROT 10” ‘ Set 10V compliance limit.
PRINT #1, “:TRIG:COUN 1” ‘ Set to perform one measurement.
PRINT #1, “:FORM:ELEM RES” ‘ Set to output ohms reading to PC.
‘ Initiate a reading and print results:
PRINT #1, “:READ?” ‘ Trigger and acquire one reading.
LINE INPUT #1, RD$
RD$ = “Resistance: “ + RD$
PRINT RD$
‘ Clean up and quit:
finish:
CLOSE #1 ‘ Close file.
CLEAR ‘ Interface clear.
END
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