Keithley 237

SECTION3
IEEE-488
Reference
+
a.s.12
N - Operate
Purpose
Format
Parameters
Default
Description
Programming
Notes
Programming
Example
3-44
To place
the
instrument
in
operate
or
standby
mode.
Nn
NO
N1
Standby
Operate
Upon
power-up,
or
after receiving a DCL,
SDC,
or
JOX
command,
the
instrument
de-
faults
to
NO
(standby).
In
operate,
the
programmed
bias level is available
at
the
output
of
the
instrument.
When
programmed
for
sweep
operation,
the
bias
level
is
output,
but
the
sweep
does
not
start
until
a trigger is received.
In
standby,
the
programmed
bias level is
removed
from
the
output.
If
in
the
middle
of
a
sweep,
the
sweep
is,
of
course,
terminated
if
the
unit
goes
to
standby.
The
source
measure
unit
will
output
OV
on
the
1.1
V (Model236 /237)
or
1.5V
(Model238)
range
whether
in
Source V
Measure
I
or
Source
I
Measure
V.
Refer to
paragraph
2.14 for a
complete definition
of
standby,
which
also describes
standby
current
compliance
values.
1.
The
instrument
goes to
standby
when
the
F
command
(source
and
function)
changes
the
source.
2.
Error
conditions for
the
N
command
are
described
in
the
U1
error
status
word
(see
paragraph
3.6.19).
3.
If
the
interlock cable
has
been
detected,
no
interlock condition
must
be
present
for
the
instrument
to
go
into
operate. While
the
unit
is
in
operate,
if
an
interlock con-
dition
becomes present,
the
unit
will
go
into
standby.
4.
In
standby
mode,
the
instrument
is
set
internally
to
local sense.
For
applications
where
guard
is
switched,
program
the
unit
to
local sense before
the
switch occurs
to allow for safe switching.
10
20
30
10
OUTPUT 716;"R1X"
OUTPUT 716;"N1X"
OUTPUT 716;"HOX"
OUTPUT 716;"NOX"
+
!
Enable triggers
!
Place
instrument
in
operate
!
Immediate
bus
trigger
!
Place
instrument
in
standby