Keithley 237

SECTION1
+
Getting
Started
Step
10-
Recall
Sweep
Data
IEEE-488
Bus
Operation
A.
Press
Sweep
RECALL
RECALL
II
B.
Use
the
Rotary
Knob
and
the
SELECT
buttons
to
dis-
play
data.
Data
for
the
last
data
point
of
the
sweep
is
displayed
first.
Indicator
denotes
that
sweep
recall
is
enabled.
Stored
data
is
arranged
in
a
matrix
array.
In
general,
the
knob
moves
the
display
"win-
dow"
vertically
in
the
matrix,
while
the
buttons
move
the
"window"
horizontally.
Figure
1-20
shows
a
graph
of
typical
data
for
this
test.
Figure
1-20.
Zener
Diode
Breakdown
+
The
following
HP
BASIC
4.0
program
will
perform
the
zener
diode
test
from
over
the
IEEE-488
bus.
This
program
is
written
for
a
Source
Measure
Unit
that
is
set
to
an
IEEE
address
of
16.
10
REMOTE
716
20
CLEAR716
30
DIM
A$
[BOO]
40
OUTPUT
716;
"F0,1X"
50
OUTPUT
716;
"Ql,-6,-7,
.1,2,500X"
60
OUTPUT
716;
"L.OSS,OX"
70
OUTPUT
716;
"01X"
80
OUTPUT
716;
"N1X"
90
OUTPUT
716;
"HOX"
100
OUTPUT
716;
"G15,0,2X"
110
ENTER
716;
A$
120
PRINT
A$
130
END
Source
V
Measure
I
(sweep)
Lin
staircase
sweep
parameters
Compliance;
55mA,
auto-
range
Remote
sense
Operate
Trigger
start
of
sweep
Output
all
data
on
talk
Talk
Display
all
sweep
data
NOTE:
Place
unit
in
standby
when
sweep
is
completed
(MAN-
UAL
trigger
light
blinking).
When
the
program
is
run,
the
Source
Measure
Unit
will
sweep
from
-6V
to
-7V
in
-100m V
steps.
After
the
sweep
is
completed,
all
the
sweep
data
will
be
displayed
on
the
computer
CRT.
-10
-20
-30
mA
-40
-50
-60
1-27