TRACe:DATA:POINt
<trace_name>,
<point_index>,
<point_value>
Sending this program message sets the point specified by <poinCindex>
in
the
trace specified by <trace_name> to the value specified by <poinCvalue>.
The
pointindex is an integer ranging from 0 (the fust point) to the trace size minus one.
The point value is an integer ranging from 0 to 4095.
TRACe:DATA:POINt?
<trace_name>,<point_index>
Sending this query returns the value
of
the point specified by <poinUndex.> in the
trace specified by <trace_name>. The point index is an integerranging from
0 (the
[Ifst point) to the trace size minus one. The point value is an integer ranging from
oto 4095.
TRACe:DEFine
<trace_name>,
«numeric_value>
1
<trace_name»
Sending this program message creates a new trace with the name specified
by
the
[IfSt
parameter. The second parameter may be a numeric value indicating the size
of
the new trace
or
the name
of
another trace.
If
the second parameter is the name
of
a trace, the new trace is created as an exact duplicate (except for its name)
of
the
specified trace.
TRACe:DELete[:NAME]
<trace_name>
Sending this program message deletes the specified trace.
TRACe:DELete:ALL
Sending this program message deletes all traces.
TRACe:DIRectory?
Sending this query returns a string containing the names, sizes
and
limits
of
aU
defined traces. The format
of
the response is as shown:
namel,sizel,
startl,
stopl;name2,size2,
start2,
stop2;
...
,
stopn
TRACe:FREE?
Sending this query returns the number
of
trace memory points in use
and
the
number
of
trace memory points available. The format
of
the response is as shown
below:
<points_available>,<points_in_use>
TRACe:LIMits
<trace_name>,
<start_index>,<stop_index>
Sending this program message sets the playback limits
of
the trace whose name is
specified by <trace_name>. The second parameter is the index
of
the start point
and the third parameter is the index
of
the end point. The value
of
the end point
must be greater than
the
value
of
the start point plus eight.
Both
points
must
be
within the trace boundaries. Trace boundaries range from 0 to size
-l.
TRACe:LIMits?
<trace
name>
Sending this query returns the playback limits
of
the trace whose name is specified
by <trace_name> in
the
following format:
<start_index>,
<stop_index>
TRACe>:MODE
<CW
1
RASTer>
Sending this program message sets the trace playback mode.
If
CW
is selected, a
fixed
50
MHz
scan
rate
is
used
and phase accumulation is
used
for
frequency
control. Frequency is controUed using the :FREQuency[:CW] program message.
CW
stands for Continuous Wave and implies the signal being played back is phase
continuous
like
a
sine
wave.
CW
mode
is
useful
primarily
for
playing
back
standard functions like sinusoid, triangle and square. Becanse
of
the fixed scan rate
the 20 MHz filter can be turned on to remove the
50
MHz sampling noise and thus
generate spectraUy
pure
funetions.
Remote Operation 5-47
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