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Motion Perfect Tools
Section 7-5
Parameter Box
The parameters which the scope can record and display are
selected using a pull-down list box in the upper left corner of each
channel control block.
Depending upon the parameter chosen, the next label will switch
between axis or channel.
It is also possible to plot the points held in the MC Unit Table array
directly by selecting the Table parameter, followed by the number
of a channel whose first/last points have been configured using the
Advanced Options Window, which is described later in this section.
If the scope channel is not required then ‘NONE’ should be
selected in the parameter list box.
Axis/Channel
List Box
The Axis/Channel List Box allows the user to select the required
axis for a motion parameter, or channel for a digital input/output.
The list box label will switch according to the setting in the Param-
eter List Box.
Vertical Scale
The scope vertical scale in units per grid division on the display
can be set to either Automatic or Manual Mode.
In Automatic Mode, the scope calculates the most appropriate
scale when it has finished running and prior to displaying the trace.
If the scope is running with continuous triggering, it will initially be
unable to select a suitable vertical scale. When this happens, the
scope must be halted and re-started, or used in the manual scaling
mode.
In Manual Mode, the user selects the scale per grid division. The
vertical scale is changed by pressing the Up/Down Scale Buttons
at the sides of the Current Scale Text Box. The button on the left
decreases the scale value, and the button on the right increases
the scale value.
To return to the Automatic Mode, continue pressing the left button
(decreasing the scale value) until the word ‘AUTO’ appears in the
current scale text box.
Channel Trace
Vertical Offset
The Vertical Offset Buttons are used to move a trace vertically on
the display. This control is useful when two or more traces are
identical, in which case they will overlay each other and only the
uppermost trace will be seen on the display.
The offset value will remain in effect for a channel until the Vertical
Offset Reset Button is pressed or the scroll bar is used to return
the trace to its original position.
Vertical Offset
Reset
The vertical offset value applied using the vertical offset scroll bars
can be cleared when the Vertical Offset Reset Button is pressed.
Cursor Button
After the scope has finished running and has displayed a trace, the
cursor bars can be enabled. These are displayed as two vertical
bars of the same color as the channel trace, and initially located at
the maximum and minimum trace points. The values these repre-
sent are shown below the scope display, and the text is of the
same color as the channel the values represent.
The bars can be moved by positioning the mouse cursor over the
required bar, holding down the left mouse button, and dragging the
bar to the required position. The maximum or minimum value
shown below the display is updated as the bar is dragged along
with the value of the trace at the current bar position.
The cursor bars are enabled/disabled by pressing the Cursor But-
ton, which toggles alternately displaying and removing the cursor
bars.
When the cursor bars are disabled, the maximum and minimum
points are indicated by a single white pixel on the trace.