Planar
TR1300/1,
TR5048,
TR7530
Programming
Manual
SCPI
16
4.7
Query
Commands
The
query
commands
read
out
the
parameter
values
from
the
instrument.
After
a
query
command
has
been
sent,
the
response
should
return
via
remote
control
interface.
The
query
commands
has
a
question
mark
('?')
in
the
end
of
the
command.
Many
of
the
commands
have
two
forms.
The
form
with
a
question
mark
writes
the
parameter,
the
form
without
a
question
mark
reads
out
the
parameter.
For
expample:
SENSe:FREQuency:STARt
1
MHz
SENSe:FREQuency:STARt?
4.8
Numeric
Suffixes
The
instrument
contains
several
items
of
the
same
type,
such
as
9
channels,
each
of
which
in
turn
contains
8
traces,
etc.
A
numeric
suffix
is
used
to
denote
the
item
number
in
a
command.
The
suffix
is
added
to
the
keyword
of
the
item
(channel,
trace,
etc).
For
expample,
in
the
following
specification
the
channel
number
<Ch>
and
trace
number
<Tr>
indicate
the
channel
and
trace,
to
which
this
command
is
addressed:
CALCulate<Ch>:PARameter<Tr>:DEFine
According
to
this
specification,
the
command
referred
to
the
trace
2
of
the
channel
1
will
be
written
as
follows:
CALC1:PAR2:DEF
The
numeric
suffix
can
be
omitted.
In
this
case,
it
is
1
by
default.
For
example,
the
following
commands
are
equivalent:
CALC:PAR:DEF
CALC1:PAR1:DEF
4.9
Compound
Commands
It
is
possible
to
enter
more
than
one
command
in
the
same
command
line.
The
commands
in
the
line
are
separated
by
a
semicolon
(';').
The
specification
of
the
first
command
is
valid
for
the
following
command,
except
for
the
last
leaf
before
the
semicolon.
For
expample:
SENS:FREQ:STAR
1
MHZ;STOP
2MHZ
