Agilent Technologies 339B User Manual

4349B
Program Message
Syntax
This
section
provides
an
example of
constructing of
aSCPI
program message
.A
program
message
is
the
message
sent from
a computer
to an
instrument. Program
messages consist
of
commands
combined
with
appropriate
punctuation and
program message
terminators.
Case
Letter
case (upper
and
lower)
is
ignored.
Program
Message
T
erminator
A
program
message
must
end
with
one
of
the
three
program
message
terminators
,
<new
line>
,
<^END>
,
or
<new
line><^END>
.
<^END>
means
that
EOI
is asserted
on the
GPIB
interface
at
the
same
time
the
preceding
data
byte
is sent.
For
example,
HP
B
ASIC
OUTPUT
statement
automatically
sends
an
message
terminator
after
the
last
data byte
is sent.
If you
are
using
a
PC,
you
can
usually
congure
your
system
to send
whatever terminator
you specify
.
Subsystem
Command
Syntax
Subsystem
command
consists
of
the
level
mnemonics
which
are
separated
with
colons
.
F
or
example
,
command
form
of
APERture
under
[
SENSe
]
:CURRent
subsystem
becomes
as
follows:
:CURRent:APERture
Abbreviated
mnemonics
are
also
available
for
command
headers
.
In
the
above
example
,
:CURR:APER
is
available
.
Common
Command
Syntax
Common
commands do
not
have
a
hierarchical
structure
.
They
are
just
sent
as
follows:
*CLS
P
arameters
There
must
be
a
<space>
between
the last
command mnemonic
and the
rst
parameter
in
a
subsystem
command.
:CURR:APER
t
parameter
t
means
a
space
(ASCII
character
(decimal
32))
is inserted
here
.
If you send more than one parameter with a single command, each parameter must be
separated by a comma. F
or example
, :POINts command of
DATA subsystem is followed by two
parameters as follows
.
:DATA:POIN t parameter , parameter
GPIB Reference 5-5

Agilent Technologies 339B Specifications

General

Brand	Agilent Technologies
Model	339B
Category	Measuring Instruments
Language	English