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Tektronix 2221 - Page 109

Tektronix 2221
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Options
and
Accessories
--
2221
Operators
П
Table
7-27
(
cont
)
C
Commands
Description
2221
and
2230
ACQuisition
SCAN
:
<
ACCpeak
or
AVErage
>
Selects
the
ACCpeak
or
AVErage
mode
for
SCAn
acquisitions
at
0.1
sec
/
div
to
5
sec
/
div
.
The
oscilloscope
must
in
NORM
or
SGL
SWP
trigger
mode
to
observe
a
change
in
the
READOUT
.
ALL
ACQuisition
SMOoth
:
<
ON
or
OFF
>
п
Applies
smoothing
to
the
acquired
waveform
data
when
ON
.
2220
ACQuisition
TRIGCount
:
<
NR1
>
Sets
the
number
of
data
points
acquired
before
the
trigger
point
in
the
waveform
record
.
The
range
of
the
<
NR1
>
number
is
16
to
2048
in
post
-
trigger
and
2048
to
4080
in
pre-
or
mid
-
trigger
.
The
resolution
of
the
<
NR1
>
value
is
4
.
2221
ACQuisition
TRIGCount
:
<
NR1
>
Sets
the
number
of
data
points
acquired
before
the
trigger
point
in
the
waveform
record
.
The
range
of
the
<
NR1
>
number
is
from
16
to
4080.
The
setting
of
the
front
-
panel
TRIG
POS
switch
does
not
limit
the
range
of
the
trigger
point
position
within
the
waveform
record
.
The
resolution
of
the
<
NR1
>
value
is
4
.
П
П
Л
2230
ACQuisition
TRIGCount
:
<
NR1
>
Sets
the
number
of
data
points
acquired
before
the
trigger
point
in
the
waveform
record
.
The
range
of
the
<
NR1
>
number
depends
on
the
record
length
and
the
selection
of
pre-
or
post
-
trigger
.
In
pretrigger
,
the
<
NR1
>
range
is
4
to
512
for
1
K
records
and
16
to
2048
for
4
K
records
.
In
post
-
trigger
,
the
range
is
from
512
to
1020
for
1
k
records
and
2048
to
4080
for
4
K
records
.
The
resolution
of
<
NR1
>
is
4
counts
.
ALL
ACQuisition
VECtors
:
<
ON
or
OFF
>
Turns
point
-
to
-
point
display
vectors
ON
or
OFF
.
ALL
ACQuisition
WEight
:
<
NR1
>
Sets
the
number
of
acquisitions
weighted
into
an
AVEraged
waveform
record
.
The
valid
values
for
<
NR1
>
are
:
1
,
2
,
4
,
8
,
16
,
32
,
64
,
128
,
and
256.
A
service
request
is
generated
and
the
command
is
ignored
if
the
argument
is
not
one
of
these
numbers
.
If
the
argument
for
WElght
is
omitted
,
<
NR1
>
reverts
to
4
.
ALL
ACQuisition
?
Returns
the
settings
of
the
acquisition
modes
in
the
following
short
form
with
LONG
set
to
OFF
.
ACQ
REP
:
AVE
,
HSR
:
SAM
,
LSR
:
PEA
,
SCA
:
PEA
,
ROL
:
PEA
,
SMO
:
ON
,
WEI
:
4
,
SWP
:
1037
,
NUM
:
,
POI
:
4096
,
TRIGM
:
POST
,
TRIGC
:
2000
,
SAV
:
OFF
,
DIS
:
SCA
,
VEC
:
ON
;
Each
of
the
acquisition
command
arguments
(
except
RESet
)
may
be
queried
separately
to
find
out
that
argument's
status
.
Л
П
П
П
П
П
П
п
Л
ALL
ACQuisition
?
DISplay
Returns
a
string
of
either
ROLI
or
SCAn
for
the
present
state
of
the
ROLLISCAN
button
.
The
form
of
the
return
is
:
ACQ
DIS
:
<
ROL
or
SCA
>
;
7-33

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