Keithley 237

Programming
Examples
+
SECTION3
IEEE-488
Reference
13.
When
trigger
on
Talk is selected,
an
ENTER statement triggers the
sweep
and
gets
data
from
the
unit.
With
certain combinations
of
input
trigger effects, the
single trigger
provided
by
an
ENTER statement is
not
sufficient
to
complete a
sweep
or
an
individual
S-D-M
cycle
and
the
bus
will
hang. For example,
"SRC
DLY MSR
with
all
lines selected,
or
"SRC
DL Y
"MSR
with
a single line
or
all
lines
selected, requires
more
than
one
trigger
in
order
to
send
measurement
data.
10
REMOTE716
20 OUTPUT
716;"ROX"
30
OUTPUT 716;''T2,0,4,0X"
40
OUTPUT 716;"R1X"
50
SEND
7;
TALK 16
60
ENTER 716; A$
70 OUTPUT
716;"ROX"
80
OUTPUT 716;''T1,X"
90
OUTPUT 716;"R1X"
100 TRIGGER716
110 OUTPUT
716;''TO,X"
120
END
Volts
4
2
o
Bias~
Sweep
Point
1
2
3
4
5
6
i
Single
Pulse
Source
Value
4V
2V
4V
2V
4V
2V
!
Pulse
End
tONjtOFF
100msec
100
msec
100
msec
100
msec
100
msec
100msec
i
Single
Pulse
!
Disable triggers
!
Set
to
trigger
on
talk, trigger
out
at
end
of
measure
!
Enable triggers
!
Make
unit
a talker
!
Trigger
sweep
by
addressing
unit
to
talk.
!
Disable triggers
!
Change
to trigger
on
GET
!
Enable triggers
!
Trigger
on
GET
!
Change
to
trigger
on
X,
and
trig-
geronX
82,2,0
!
Pulse
End
03,
4, 2, 3,
100, 100
80,2,0
T1,8,8,1
i
Single
Pulse
Piel
End
Sweep
End
Figure
3-13.
Pulsed
Sweep
Triggers
and
Sweep
End
Trigger
+
3-61