Agilent Technologies 4339B - Page 121

4339B
Getting
Started
Query
Commands
There
are
several
commands
in
the
alphabetic
command
directory
that
end with
a question
mark.
These
commands
are
called
query
commands because
each returns
a response
to a
particular
question.
In
addition
to
the
queries
described
above,
you can
create others
by appending
a question
mark
to
most
commands
.
Getting Data
from
the
4339B
The
4339B
can
output
readings
and
responses
to
query
commands
.
As
an
example
,
have the
4339B
generate
a
response
to
a
query
command
by
sending:
OUTPUT
717;"*IDN?"
When
you
send
a
query
from
remote
,
the
4339B
does
not
display
the
response
as
it
would
if
you
executed
the
command
from
its
front
panel.
Instead,
the
4339B
sends
the response
to
its
output
buer
.
The
output
buer
is
a
register
that
holds
a
query
response or
data for
a
single
measurement
until
it
is
read
by
the
computer
or
replaced
by
new
information.
Use
the
computer's
input
statement
to
get
the
response
from
the
output
buer
.
F
or
example
,
the
following
program
reads
the
response
(
4339B
)
and
prints
it.
10
ENTER
717;A$
20
PRINT
A$
30
END
Remote Operation 4-3