HP 54501A - Separator; Command Syntax

Separator
The
<
separator
>
shown
in the
program
message
refers
to
a
blank
space
which
is
required to
separate
the
program
mnemonic
from
the
program
data.
Command
Syntax
A
command
is
composed
of
a
header,
any
associated
data,
and
a
terminator.
The
header
is
the
mnemonic
or
mnemonics
that
represent
the
operation
to
be
performed
by
the
instrument.
The different types
of
headers
are
discussed
in the
following
paragraphs.
Simple
Command
Header.
Simple
command
headers
contain
a
single
mnemonic.
AUTOSCALE
and
DIGITIZE
are
examples
of
simple
command
headers
typically
used
in
this
instrument.
The
syntax
is:
<
program
mnemonic
> <
terminator
>
When
program
data
must
be
included with the
simple
command
header
(for
example,
:DIGITIZE
CHAN1),
a
separator
is
added.
The
syntax
is:
<
program
mnemonic
>
<
separator
>
<
program
data
> <
terminator
>
Compound
Command
Header.
Compound command
headers
are
a
combination of
two
or more program mnemonics.
The first
mnemonic
selects
the subsystem,
and
the
last
mnemonic
selects the
function
within
that
subsystem.
Additional
mnemonics
appear
between
the
subsystem
mnemonic
and
the
function
mnemonic
when there
are
additional levels
within
the
subsystem
that
must
be
transversed.
The
mnemonics
within
the
compound message
are
separated
by
colons.
For
example:
To
execute
a
single
function
within
a subsystem,
use
the
following:
: <
subsystem
>:
<
function
> <
separator
> <
program
data
>
<
terminator
>
(For
example
:SYSTEM:LONGFORM ON)
To
transverse
down
a
level of
a
subsystem
to execute
a
subsystem
within
that
subsystem:
:
<
subsystem
>:
<
subsystem
>:
<
function
>
<
separator
> <
program
data>
<
terminator
>
(For example
:TRIGGER:DELAY:SOURCE
CHAN1)
HP
54501A
Programming
Introduction
to
Programming
an
Oscilloscope
1-5