Agilent Technologies 4349B User Manual

4349B
Subsystem Command
Tree
T
op
of
the
subsystem command
tree is
called the
root command
,or
simply the
root .
T
o
reach
the
low-level
commands
,
you must
specify a
particular path
just like
you would
specify a
DOS
le
directory
path.
After
Power
ON or
after an
*RST command,
the current
path is
set to
the
root.
The
path
settings
are changed
as follows:
Message
T
erminator
A
message terminator
, such
as <new
line> character
,
sets
the
current
path
to
the
root.
Colon
(:)
When
a
colon is
placed between
two command
mnemonics,
the
colon
moves
the
current
path
down one
level on
the command
tree.
When
the
colon
is
the
rst character
of a
command, it
species the
following
command mnemonic
is a
root-level command.
Semicolon
(;)
A semicolon
separates two
commands in
the
same
message
without
changing
the
current path.
Common
commands
, such
as *RST
, are
not part
of
any
subsystem.
The
4349B
interprets
them
in the
same way
,
regardless
of
the
current
path
setting.
Figure
5-1
shows
examples
of
how
to use
the
colon
and
semicolon
to
navigate
eciently
through
the
command
tree
.
Figure 5-1. Proper Use of the
Colon and Semicolon
In Figure 5-1, notice how proper use of the semicolon can save typing. Sending this message:
:AA:BB:EE; FF; GG
Is the same as sending these three messages:
:AA:BB:EE
:AA:BB:FF
:AA:BB:GG
5-4 GPIB Reference

Agilent Technologies 4349B Specifications

General

Brand	Agilent Technologies
Model	4349B
Category	Measuring Instruments
Language	English