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The Waveform
Screen
3-84 ArbConnection
Use extreme caution when using this icon because it will delete
all of your segments from your waveform memory.
When you click on this button, the waveform that is displayed on
your waveform screen will be downloaded to the active segment on
the selected channel.
length of the active segment. You can program up to 4096 individual
segments that each has a unique length. Minimum segment length is
16 points and maximum is 4,194,303 ("0" is counted as a point for a
total of 4,194,304). To program a new length for the active segment
click on the edit field, use your backspace or delete keys to clear the
field and type in the new number. To complete the selection, click on
the Wavelength button.
Use this edit field to define the active segment you
intend to program. The PXA125 lets you program up to 4096
segments, of which each could be programmed with a unique
waveform length. To select a new active segment click on the edit
field, use your backspace or delete keys to clear the field and type in
the new number. To complete the selection, click on the Active
Segment button.
Waveforms are created and edited on the waveform screen. Figure 3-
19 shows an example of a waveform created using the equation
editor and the anchors to limit generation of the waveform between
points 100 and 900. The various elements of the waveform screen are
described below.
The waveform screen has two axes – vertical and horizontal. Both
axes are divided into points.
The vertical axis is labeled from –8192 through 8191 for a total of
16,384 point. This number represents 14 bits of vertical resolution and
cannot be changed because it is critical to the range of which the
PXA125 operates.
The horizontal axis, by default has 1000 points (from point 0 to 999).
This number can be changed using the Wave Length field in the
Toolbar. The maximum length depends on the option installed in your
instrument. The wave composer will let you define the horizontal axis
to a maximum of 4,194,304 (4 Meg words).
The wavelength field lets you program the
User Manual PXA125
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