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Normally, the color of the signals is set automatically by PSM to give
good color contrast on a color monitor. However, that contrast may
not stand out on your monitor or on your color printer or especially with
your black and white printer. You can control the colors used to
display signals by clicking on “View” and then “Change Color
Scheme”.
Whatever is displayed can be printed by clicking on “File” and then
“Print”. It can also be saved as a Windows bitmap file by clicking on
“File” and then “Save as BMP”.
A very handy feature is the “Redo” icon. Whenever it is visible,
clicking on it give you fresh data to look at. If you are viewing the
waveforms of the attached signals and you click on this, another set
of waveforms will immediately be captured, assigned a new file
name, and displayed. Similarly, if you have the high frequency
spectrum analyzer option (FAO) and you click on the icon, a new
spectrum analysis will be conducted and displayed. On the other
hand, if you are looking at a stored data file, clicking on this icon will
allow you to choose other data files of a similar type to view.
Reading Graphs and Waveforms
Graphs and waveforms have similarities in the ways they are presented in order to quickly understand
what is displayed. Examples of the various graphs and what the various sections mean follow.
1) The name of the file that is being displayed appears in the top border. If you want to determine
what directory the fil
e is in, click on “File” and then “Save As” to see the directory location.
2) The name of the graph or waveform set appears at the top
of the graphical portion of the screen. The default name is
the name of the file, including the directory path. You can
e
nter a name of your choice, by clicking “View” and then
“Labels”.
3) The name and metric of the vertical axis tells what type of
measurement is being displayed and what the unit of
measurement is. When the graph combines different types
of measurements (such as when displaying voltage and
current) there will be a vertical name and metric on the left
side and a different one on the right side of the graph.
4) The horizontal axis is usually time. Logs have time and date
stamps to help determine when events occurred and how
long they lasted. Other graphs and waveforms have metrics
of seconds or milliseconds. Displays of triggered graphs or
waveforms usually start with a negative number. This is an
indication of how far in advance of the triggering event that
point is.
5) All graphs and waveforms have a time and date stamp. In
the case of consumption logs, the left-most timestamp is
when the displayed data began. In the case of triggered
events, the time and date stamp is when the event occurred.
Summary of Contents for ATPOL II
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