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Chapter 2
The following BASIC program sets up the multimeter (GPIB address 70903)
to scan making 2-wire resistance measurements. The common terminals for
channels 0 through 2 are connected together for this example. When one of
these switches is closed (C connected to NO), different DUTs are switched
in for a measurement. Triggering is accomplished by the E1406A firmware.
The measurement is taken from the common (C) terminal.
10
ALLOCATE REAL Rdgs(1:3)
20
OUTPUT 70915; "*RST;*CLS"
30
OUTPUT 70903; "*RST;*CLS"
40
OUTPUT 70903;"ABORT;:TRIG:SOUR TTLTRG0"
50
OUTPUT 70903; "OUTP:TTLT1:STAT ON"
60
OUTPUT 70903; "CONF:RES AUTO,DEF"
70
OUTPUT 70903; "TRIG:DEL 0; COUN 3;:CAL:ZERO:AUTO ON"
80
OUTPUT 70903; "*OPC?"
90
ENTER 70903; Check
100 OUTPUT 70903; "INIT"
110 OUTPUT 70915; "OUTPUT:TTLT0:STATE ON"
120 OUTPUT 70915;"TRIG:SOUR TTLT1"
130 OUTPUT 70915; "SCAN (@100:102)"
140 OUTPUT 70915; "INIT"
150 OUTPUT 70903; "FETCH?"
160 ENTER 70903; Rdgs(*)
170 PRINT Rdgs(*)
180 END
!Reset and clear Form C switch
!Reset and clear multimeter
!Multimeter triggers on TTL
trigger line 0
!Multimeter pulses TTL trigger
line 1 on measurement complete
!Set multimeter function to
resistance, range, NPLC
!Set multimeter trigger delay,
counts, calibration state
! Check to see if multimeter is
ready. When ready, initialize
trigger 1.
!Set up the Form C. Form C
pulses TTL Trigger line 0 on
channel closed
!Set Form C to be triggered by
TTL Trigger line 1.
!Enter and print readings
Using the Form C Switch 41
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