Agilent Technologies HP 83711A - Page 190

Error
Messages
If
an error
condition occurs
in
the
synthesizer
,
it
will
always
be
reported
to
both
the front
panel and
HP-IB
error
queues
.
These
two
queues
are
viewed
and
managed separately
. The
4
MSG
5
key is
used to
view the
contents
of
the
front
panel error
queue.
The HP-IB
query
\SY
ST
em:ERRor?"
is
used
to
view
the
contents of
the HP-IB
error queue
.
If
there are
any
error
messages
in
the
front
panel
error
queue
,
the
front
panel
MSG
annunciator will
be
lit.
Pressing
the
4
MSG
5
key repeatedly
until
the
MSG
annunciator
turns
o
will
empty
the
front
panel
error
queue
.
The
4
MSG
5
key
has
no
aect
on
the
HP-IB
error
queue
.
Emptying
the
HP-IB
error
queue
has
no
aect
on
the
front
panel
queue
,
therefore
,it
will not
aect the
MSG
annunciator
.
There
are
some
special
error types
that are
called
permanent
errors
.
P
ermanent
errors
remain
in the
error queues
until
the
error
condition
is
cleared.
Pressing
the
4
MSG
5
key
will
empty
the front
panel error
queue
,
but
the
permanent
errors
will
be
re-reported
if the
error
conditions
still
exist.
In
the
HP-IB
error
queue
,
the
permanent
errors
are
re-reported
after
the
message
,
0,\No
error"
is
read
using
the
\SY
ST
em:ERRor?"
query
or
after
the
\*CLS" command
is
executed.
8-2