Commands
That Require
a Clean
Sweep
Many
front panel
commands
disrupt
the
sweep
in
progress
.
F
or
example
,
changing the
channel
or
measurement type
.
When
the
analyzer
does
execute
a
disruptive
command
in
a
sequence,
some
instrument functions
are
inhibited
until
a
complete
sweep
is
taken.
This
applies
to
the
following
functions:
autoscale
data
!
memory
F
orward
Stepping
In
Edit
Mode
In
the
sequence
modify
mode
,
you
can
step
through
the
selected
sequence list,
where the
analyzer
executes
each
step
.
Titles
A
title
may
contain
non-printable
or
special
ASCII
characters
if
you
download
it from
an
external
controller
.
A
non-printable
character
is
represented
on
the
display as
.
Sequence
Size
A
sequence
may
contain
up
to
2
kbytes
of
instructions
.
Typically,
this is
around 200
sequence
command
lines
.
T
o
estimate
a
sequence's
size
(in
kbytes),
use the
following guidelines
.
Type
of
Command
Size
in
Bytes
Typical
command
2
Title
string
character
1
A
ctive
entry
command
1
per
digit
Embedding
the
V
alue
of
the
Loop
Counter
In
a
Title
Y
ou
can
append
a
sequentially
increasing
or
decreasing
numeric
value
to
the
title
of
stored
data
by
placing
a
4
DISPLA
Y
5
N
N
N
N
N
N
N
NN
NN
N
N
N
MORE
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
TITLE
N
N
N
N
N
N
N
NN
NN
N
N
N
MORE
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
LOOP
COUNTER
command
after the
title string.
(Y
ou
must
limit
the
title
to
three
characters
if
you
will
use
it
as
a
disk
le
name
. The
three-character
title
and
ve-digit
loop
counter
number
reach
the
eight-character
limit
for
disk
le
names
.)
This
feature
is
useful
in
data
logging
applications
.
A
utostarting
Sequences
Y
ou
can
dene
a
sequence
to
run
automatically when
you
apply
power
to
the
analyzer
.
T
o
make an autostarting sequence
, create a sequence in position six and
title it \A
UTO". T
o stop
an autostarting sequence
, press
4
LOCAL
5
.T
o stop an autostarting sequence from engaging at
power on, you must clear it from memory or rename it.
The GPIO Mode
The instrument's parallel port can be used in two dierent modes
. By pressing
4
LOCAL
5
and
then toggling
the
NNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNN
PARALLEL [
]
softkey, you can select either the
NNNNNNNNNN
NNNNNNNNNN
[COPY]
mode
or the
NNNNNNNNNNNNNNNNNNNN
[GPIO]
mode.
The GPIO mode switches the parallel port into a \general purpose input/output" port.
In this mode, the port can be connected to test xtures, power supplies, and other peripheral
equipment that the analyzer can interact with through test sequencing.
Application and Operation Concepts 6-139
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