Keithley 237

SECTION3
IEEE-488
Reference
3-72
+
Temporary
Cal-
Set
when
calibration
mode
is entered
or
exited
when
the
CAL
LOCK
button
is
in
the
LOCKED
position.
The
message
TEMPORARY
CAL is
dis-
played;
entered
cal constants
are
saved
in
volatile RAM
upon
exit
of
cal procedure
(C59X)
and
thus
are
cleared
when
power
is cycled.
Value
Is
Out
of
Range-
Set
when
one
of
the
following conditions exist:
•
The
selected
de
or
sweep
source
value
exceeds
the
source range.
•
The
selected compliance value exceeds the
measurement
range.
•
The
step value is too small for
the
selected range.
•
The
step
value is
more
than
twice
the
selected range.
The
message VALUE
OUT
OF
RANGE is displayed.
With
the
first
two
conditions,
the
maximum
(signed)
value
for
the
specified
range
is used.
For
the
third
condition, a
value
of
zero is used. (A
step
of
zero yields a buffer filled
with
one
source value for
linear stair
sweeps
or
two
source values for linear stair
pulsed
sweeps.)
With
the
last
condition, a
step
value
equal
to
twice
the
selected range is
used
(e.g.,
22V
for
the
11
V
range).
Note
that
a value
out
of
range
warning
is retained
through
a source transition, as
fol-
lows:
10 REMOTE 716
20
OUTPUT
716;''FO,OX"
30
OUTPUT 716; "B2,1,X"
40
OUTPUT 716;
''F1,0X"
50
WAIT3
60
OUTPUT 716;
"FO,OX"
70
END
!
SourceV
!
Program
2V
on
1.1V
or
l.SV range, get VALUE
OUT
OF
RANGE
! Source I
!
Wait for message
to
go
away
!
Source V,
get
VALUE
OUT
OF
RANGE from
pre-
vious B
command
Sweep
Buffer
Filled-
Set
when
the
number
of generated points exceeds the buffer
capacity (Q command). A BUFFER FILLED message is displayed; generated points
are
preserved
up
to
buffer capacity
of
1000.
No
Sweep
Points;
Must
Create
Sweep-
Set
when
an
attempt
is
made
to
modify a
non-existent
sweep
with
an
A
command
or
append
a non-existent
sweep
with
a Q6
through
Q11 command. Also
set
if
a trigger for a
sweep
occurs
and
there
are
no
sweep
points.
The
message
MUST
CREATE SWEEP is displayed;
no
sweep
points
are
generated.
Pulse Times
Not
Met-
Set
when
the
specified
pulse
times
(toN
and
toFF)
cannot
be
met
(P,
Q
S,
and
W commands). Also, for
pulsed
sweeps,
set
if
autorange
measure is
programmed
(L
command)
and
the
pulse
times
might
not
be
not
long
enough. The
message PULSE TIME
NOT
MET is displayed,
and,
if
necessary,
the
toN/toFF
times
will
be
extended
to
the
minimum
needed
to
support
the
waveform
create/
append
or
instrument
configuration.
+