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Motion Perfect Tools
Section 7-5
Advanced Oscilloscope
Configuration Options
When the Options Button of the General Options is pressed, the Advanced
Oscilloscope Configuration Window will be displayed.
It is possible to plot MC Unit Table ranges directly with the Oscilloscope.
Select Table in the parameter box of the Axis Specific Controls to display the
Table elements.
Parameter Checks
There is a maximum Table size on the MC Unit, and it is not possible to enter
Table channel values beyond this value. It is also not possible to enter a lower
scope table value or increase the samples per grid division to a value which
causes the upper scope Table value to exceed the MC Unit maximum Table
value.
If the number of samples per grid division is increased, and subsequently the
time base scale is set to a faster value, causing an unobtainable resolution,
the scope will automatically reset the number of samples per grid division.
Displaying MC Unit Table
Points
If the scope is configured for both Table and motion parameters, then the
number of points plotted across the display is determined by the time base
and samples per division. If the number of points to be plotted for the table
parameter is greater than the number of points for the motion parameter, the
additional table points will not be displayed, but can be viewed by scrolling the
table trace using the horizontal scroll bar. The motion parameter trace will not
move.
Uploading Data from the
MC Unit to the Scope
If the overall time base is greater than a predefined value, then the data is
retrieved from the MC Unit in blocks, and the display can be seen to be
updated in sections. The last point plotted in the current section will be dis-
played as a white spot.
If the scope is configured both to record motion parameters and to plot Table
data, then the Table data is returned in one complete block, and the motion
Oscilloscope:
Samples per Divi-
sion
The scope defaults to recording five points per horizontal time
base grid division. This value can be adjusted using the adjacent
scroll bar.
To achieve the fastest scope sample rate it is necessary to
reduce the number of samples per grid division to 1 and increase
the time base scale to its fastest value of 1 ms per grid division.
The trace might not be plotted completely to the right side of the
display, depending upon the time base scale and number of
samples per grid division.
Oscilloscope:
Table Range
The MC Unit records the required parameter data values in the
MC Unit’s Table array prior to uploading these values to the
scope. By default, the lowest scope Table value used is zero. If
this conflicts with programs running on the MC Unit that require
this section of the Table, then the lower scope table value can be
set.
The lower scope table value is adjusted by clicking into the text
box and entering the new value. The upper scope table value will
be automatically updated and cannot be changed by the user.
The upper scope table value depends on the number of channels
in use and the number of samples per grid division.
If an attempt is made to enter a lower table value which causes
the upper table value to exceed the maximum permitted value on
the MC Unit, then the original value will be used by the scope.
Table Graph:
Points per division
The scope defaults to recording fifty points per horizontal time
base grid division. This value can be adjusted using the adjacent
scroll bar.
Table Graph:
Table Range
The Table Limit Text Boxes are used to enter the Table ranges
for the four possible channels of the Oscilloscope.