Tektronix 2221 - Page 105

Options and
Accessories
--
2221
Operators
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Table
7-25
Cursor
Commands
Commands
Description
2221 and
2230
CURSor
CHAnnel : < CH1
- CH2 >
Selects
the named
channel as
the
channel
from
which
the
cursor
voltage
difference is
returned by
the
DELTAV ?
query .
No
warning
is
generated
if
the
cursors are
directed to an
undisplayed
channel .
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2221 and 2230
CURSor
POSition : <
NR1
>
Selects
the
horizontal
data
point
position
of
the
active
cursor .
If
the
acquisition is
a 1 -
Kbyte
record and the
position
requested is
past
1023
data
points
, the
value
is
limited to
position
1023 ,
and no
warning is
sent
.
If the
acquisition
is
a 4 -
Kbyte
record and the
position
requested is
past
4095 data
points
, a
command
error
service
request
is
generated , and
the
command is
ignored
.
2221
and
2230
CURSor
SELect : <
CURS1 -
CURS2
>
Selects the
named
cursor to be
positioned by the
CURS
POS
command
.
П
п
2221 and
2230
CURSor
TARget
:
ACQuisition
Attaches the
displayed
cursors to
acquisition
waveform .
2230
CURSor
TARget
: <
REF1
-
REF3 >
Attaches the
displayed
cursors
to
the
named
reference
waveform . If
the
named
reference is
not
displayed ,
the
command is
ignored . No
warning is
issued for
directing the
cursors to an
undisplayed
reference .
2221
and 2230
CURSor
TARget
:
REF4
Attaches the
displayed
cursors to
REF4 . No
warning is
issued for
directing
the
cursors to
REF4
if
it is not
displayed ,
but an
execution
error
service
request is
generated
if
REF4 is
empty .
2221
and 2230
CURSor ?
П
Л
Returns
all
the
present
cursor
argument
states
in the
form :
CURS
SEL :
CH1 ,
TAR :
ACQ ,
CHA :
CH1 ,
POS :
1047 ;.
Each of
the
CURSor
arguments
may
be
separately
queried as in :
CURSOR ? TAR to
obtain the
present
status of that
argument only .
2221 and 2230
DELTAV
?
Returns an
<
NR3 >
value
that
represents the
present
voltage
difference
between the
selected
TARget and
CHAnnel
cursors
and
the
measurement units
as
either V or
PERcent
. The
form of
the
return is :
DELTAV
VAL :
0.500EO
,
UNI : VOL ;.
PERcent is
returned for the
units
when
the
VOLT
/ DIV
variable
knob is out
of the
CAL
detent
position
.
2221 and
2230
DELTAV ?
VALue
Returns the
cursor
voltage
difference only in
the form :
DELTAV VAL : <
NR3 > ;.
The
return defaults to a
displayed
CHAnnel
even
if
directed
elsewhere to an
undisplayed
CHAnnel .
2221 and
2230
DELTAV ?
UNIts
Returns the
voltage
measurement
units
only
in
the
m :
DELTAV
UNI
: <
V
or
PER
>
;.
See the
preceding
DELTAV
?
query
description .
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