Delta MMC120 - Manual (Page 42)

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support, but also holds bits 16 and 17 of the current count. Therefore, if you are using a
long enough MDT and are using counts above 65535, then you can combine the two
fields to find the actual counts at each point on the graph.
Sum of Errors Squared
This field is computed by summing the squares of the position error for each time unit on
a graph. The lower this value, the closer the actual position curve tracked the target
position curve. The numerical value displayed in this field has no meaning by itself, but
it can be used during tuning to check whether a tuned parameter was helpful or harmful
to the tracking of the position. In order to have a valid comparison the two graphs must
have the same length, and the moves need to have had the same target profile.
Otherwise, the changed parameter is not isolated in the test.
Table Editors
Table Editor Basics
Starting a Table Editor
To start an editor, from the Tools menu, click the desired editor. Notice that each editor
also has a shortcut key that can be used to start the editor. These are displayed in the
menu.
When the table editor is opened, the following steps will be taken:
1.For the tables other than the Stored Command table: if a motion controller is connected
to the monitor, the table will be read from the module.
2. If a motion controller is not connected to the monitor, the table will be read from a
file. The filename used is given by the board filename, with the appropriate extension
appended.
3. If a motion controller is not connected to the monitor and the table could not be read
from disk, then default values will be filled into the table.
Exiting an Editor
To close an editor, use one of these methods:
• Press ESC.
• On the File menu, click Exit.
• Click the Close button.
If changes have been made to the table that have not been saved to a file or downloaded
to the motion controller you will be prompted to do so upon exit. You will always be
given the option of exiting without saving.
Editing the Tables