HP 54501A - Estop

ESTOp
ESTOp
command/query
The :MEASURE:ESTOP
command causes
the
instrument to
position
the
stop marker
on
the
specified
edge
and
slope
of
the
displayed
waveform.
All
edges
must
be
displayed
and
are
counted
from
the
left
edge
of the
display.
The
stop marker
is positioned
where
VMarker
2
intersects
the
waveform.
The desired
edge
is
specified
by
sending
an
integer
value
after
the
command
name.
If
a
positive integer
is
sent,
the
oscilloscope
places
the
stop
marker
on
a
positive-going
waveform
edge.
If
a negative integer
is
sent,
the
stop
marker
is
placed
on
a negative-going
waveform
edge.
If
VMarker
2
does
not
intersect
the
waveform
as
specified,
the
error
message
"Edges
required not
found"
is
displayed.
The
ESTOP
query
returns
the
currently
specified
edge.
Note
The
short
form
of
this
command
does
not
follow
the
defined
convention.
The short
form
"EST'
is
the
same
for
ESTART
and
ESTOP,
so
be
careful
not to
send
this
form
for
the ESTOP
command.
Sending
"EST'
will
produce
an
error.
Command Syntax:
:MEASure:ESTOp
<edge>
Where:
<edge
>
::
=
-127
to
127
excluding
0 (if
a
positive
value
is
sent
the
+
sign
may
be
omitted
or
a
space
may
be
used)
Example:
OUTPUT 707;°:MEAS:ESTOP
-2"
This
example
places
the
stop
marker
at
the
second
displayed
negative-going
intersection
of the
waveform
at
VMarker
2.
Measure
Subsystem
14-22
HP
54501A
Programming