Keithley 237

Message
BUFFER FILLED
CAL
ADC
GAIN,
CAL
ADC
ZERO,
CAL SRC GAIN,
CALSRCZERO
CALCOMPLI
CAL CONSTANTS ERR
CAL INVALID ERR
CAL MODE
ERR
CAL
VALUE
ERR
DPRAM LINK ERR
DPRAM
LOCKUP
GENERATING SWEEP
IDDC
IDDCO
ILLEGAL MEAS RANGE
ILLEGAL SRC RANGE
IN
CAL
IN
STBY
INTERLOCK PRESENT
INVALID SWEEP MIX
IOU
CAL CHCKSUM
IOU
DPRAM FAILED
IOU EEROM FAILED
LOG
CANNOT
CROSS 0
MEAS RANGE
CHANGED
MUST CREATE SWEEP
NO
AUTO
IN
PULSE
NOT
IN
REMOTE
OFLO
PENDING TRIGGER
PULSE
TIME
NOT
MET
TEMPORARY CAL
TRIGGER OVERRUN
UNCALffiRATED
VALUE
OUT
OF
RANGE
236UNIT
65.000 SECONDS
MAX
lF
2F
+
SECTION3
IEEE-488
Reference
Table
3-2.
Front Panel
Messages
Description
Number
of
generated
sweep
points
exceeds
the
buffer capacity.
Newly
calculated cal
constant
is
out
of
expected
range
for
AID
converter gain,
AID
converter
zero,
source
gain,
or
source
zero; a
default
cal
constant
value
is
substituted.
Compliance
reached
during
calibration.
Power-up
verification
of
cal constants finds
one
or
more
values
outside
of
prede-
termined
limits;
default
value(s)
used
for
those
out
of
limits.
One
or
more
cal
errors
present
on
power-up,
DCL,
or
SOC.
Error
in
calibrating
common
mode
adjustment.
Entered
cal
constant
out
of
expected
range
for
present
step; check
exponent
and
re-enter.
Communication
error
in
the
dual
port
RAM
between
the
1/0
controller
and
source/measure
controller.
Unit
is
not
functional.
ROM
or
RAM failure
in
source/measure
controller
so
it
is
not
responding
to
1/0
controller.
Unit
is
not
functional.
Unit
is
creating
or
appending
a
sweep
from
the
front
panel.
Unit
received
an
illegal
device-dependent
command.
Unit
received
an
illegal
device-dependent
command
option.
Selected
measure
range
is
incompatible
with
source
(V
or
I)
or
unit
(236, 237
or
238).
Selected
source
range
is
incompatible
with
source
(V
or
I)
or
unit
(236, 237
or
238).
You
requested
non-calibration
commands
while
in
calibration.
You
requested
a calibration
command
while
in
standby.
You
attempted
to
go
into
operate
with
an
interlock
condition
present,
or
an
inter-
lock
condition
exists
while
in
operate.
Cannot
create
I
append
different
sweep
types
(pulsed
and
non-pulsed)
in
buffer.
Power-up
checksum
test
of
cal constants failed.
Dual
port
RAM
in
1/0
controller failed.
Unit
is
not
functional.
Electrically erasable
ROM
in
1/0
controller failed.
Cannot
create/append
a
log
sweep
that
passes
through
zero.
Cannot
have
source
and
measure
ranges
of
1100V
and
lOOmA (237),
or
110V
and
lA
(238)
at
same
time;
measurement
range
lowered.
You
attempted
modifying,
appending,
or
triggering a non-existent sweep.
Cannot
select
source
autoranging
with
a
pulse
sweep
create
or
append.
You
sent
an
X
command
when
the
unit
was
not
in
remote
(REN
is
false).
An
external
power
source
has
overloaded
the
measurement
hardware
in
the
Model236/237/238.
Unit
was
triggered
while
still processing a
previous
command;
trigger
will
be
processed.
Specified
pulse
times
(toN
and
toFF)
might
not
be
met
and
will
be
extended
if
nec-
essary.
CAL
LOCK
button
is
in
LOCKED
position;
entered
cal constants will
not
be
saved
if
power
is cycled.
Unit
was
triggered
while
still processing a
previous
trigger;
trigger
is ignored.
No
cal constants
are
stored
in
EEPROM
(Source/Measure
LED blinks).
Selected
source
value
exceeds
source
range,
or
selected compliance
value
exceeds
measurement
range,
or
incremental
source
values
are
too
small
for selected range.
You
sent
l.lkV
calibration
commands
to
a
Model236.
Cannot
have
a
de
or
sweep
delay
greater
than
65.000
seconds.
Value
defaults
to
65.000
seconds.
Power-up
or
memory
test
of
1/0
controller RAM failed.
Unit
is
not
functional.
Power-up
or
memory
test
of
1/0
controller
ROM
failed.
Unit
is
not
functional.
+
3-3