Keithley 237

+
SECTION3
IEEE-488
Reference
a.s.2o
V
-
11
OOV
Range Control
Purpose
Format
Parameters
Default
Description
Programming
Notes
Programming
Example
To
control
the
output
of
voltages
on
the
llOOV
range
of
a
Model237
Source
Measure
Unit.
Vn
vo
Vl
Disable llOOV
range
Enable
llOOV
range
Upon
power-up,
or
after receiving a DCL
or
SOC
command,
the
Model237
defaults
to
the
last
programmed
selection;
the
Models
236
and
238
default
to
VO
(llOOV
range
disabled).
A
JOX
command
sets
Model237
to
Vl
(llOOV
range
enabled)
and
the
Mod-
els 236
and
238 to
VO.
The
V
command
can
be
used
to
prevent
accidental application
of
voltages
on
the
llOOV
range
by
aModel237.
This
is
useful
when
the
output
is
switched
and
the
maxi-
mum
switched
voltage is specified
at
less
than
the
maximum
output
of
the
Model
237.
If
you
program
a
VO
command
when
the
llOOV
range
is
in
use,
the
output
goes to
lSOV
or
less.
If
you
program
a voltage
above
llOV
when
the
llOOV
range
has
been
disabled
with
VO,
the
output
is
set
to llOV.
(See
the
Programming
Example for
de-
tails.)
1.
Sending
a
V
command
to
a
Model236
or
238 is
treated
as
an
illegal
command
(IDDC).
2. Calibrating
the
llOOV
range
requires
that
the
range
is
enabled
with
the
Vl
com-
mand.
REMOTE716
OUTPUT
716;"JOX"
OUTPUT 716;"B200,4,X"
OUTPUT
716;''N1X"
OUTPUT 716;"VOX"
OUTPUT 716;"B200,4,X"
OUTPUT
716;''V1X"
OUTPUT
716;''VOX"
OUTPUT 716;"B200,3,X"
+
!
Restore factory
defaults
!
Program
200V
on
llOOV
range
!
Place 237
in
operate,
output
=
200V
!
Disable
llOOV
range,
output=
lSOV
!
Program
200V
on
llOOV
range,
get
lllegal Src Range message,
output
=
lSOV
!
Enable
llOOV
range,
output
200V
!
Disable
llOOV
range,
output=
lSOV
!
Program
200V
on
llOV
range,
get
Value
Out
of
Range
message,
output
=
llOV
3-75