5
HP-IB
Priority
The
HP-IB
interface
has
priority
over
other
processes
running
on
the
instrument.
In
particular
,
if
you
are
running
a
Record
application
over
the
HP-IB
,
you
should
not
poll
the
instrument
continuously
to
detect
the
end
of
the
application.
Instead,
you
should
use
interrupts
,
if
this
is
possible
,
or
make
sure
that
there
is
a
delay
between
each
poll
of
the
instrument.
A
programming
example
,
using
interrupts
for
a
stability
application,
is
included
in
chapter
6,
see
\Example
6"
in
Chapter
10.
If
the
instrument
is
accessed
over
the
HP-IB
while
you
are
editing
a
parameter
,
the
editing
will
be
terminated.
F
or
example
,
if
you
are
editing
a
system
parameter
,
an
incoming
HP-IB
access
terminates
the
editing,
and
blanks
the
display;
in
this
case
you
should
press
4
Lo cal
5
and
then
4
Menu
5
to
restore
the
display
and
return
the
instrument
to
Measure
mode
.
If
the
interrupting
HP-IB
command
is
to
zero
the
instrument,
then
the
ZEROING
message
is
lost
when
the
display
is
blanked.
TMSL
The
HP
8153A
uses
commands
according
to
the
T
est
and
Measurement
Systems
Language
(TMSL,
also
known
as
Standard
Commands
for
Programmable
Instrumentation,
SCPI).
F
or
an
introduction
to
TMSL/SCPI,
and
TMSL/SCPI
programming
techniques
,
refer
to
the
following
documents:
Hewlett-P
ackard
Press
(A
ddison-W
esley
Publishing
Company
,
Inci).
A
Beginners
Guide
to
SCPI.
Barry
Eppler
.
1991.
The
SCPI
Consortium.
Standard
Commands
for
Programmable
Instruments.
Published
periodically
by
various
publishers
.
T
o
obtain
a
copy
of
this
manual,
contact
your
Hewlett-P
ackard
representative
.
A
TMSL/SCPI
command
is
a
combination
of
command
components
.
The
commands
used
by
the
HP
8153A
are
given
in
chapters
7,
8
and
9.
These
show
the
possible
command
components
,
and
the
possible
component
combinations
.
The
rst
component
in
one
of
the
command
tables
is
called
the
root
component.
Other
components
are
added
to
make
a
command.
The
way
the
components
are
added
is
called
the
command
path.
It
is
important
to
know
the
current
path,
because
the
same
component
can
be
used
in
dierent
paths
.
In
some
cases
the
5-6
Remote
Operation
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