Nematron Pointe Controller - Manual (Page 149)

Pointe Controller User Guide Chapter 5: Developing Controller Programs
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To enable audit log processing for a Flow Chart, click the View Change History
button on the chart’s toolbar:
A notice appears that gives you the option of enabling audit log processing.
NOTE: Once this feature is enabled, it cannot be disabled.
Once enabled, you are required to enter a comment on changes made to the
chart each time you close the Flow Chart editor window (and save changes). The
Update Flowchart Change History box appears, allowing you to enter your
comments.
You can also check the current change history by clicking the View Log button.
After you have enabled audit log processing for a Flow Chart, the Update
Flowchart Change History box appears whenever you click the View Change
History button on the toolbar.
5.6.8 Making a Flow Chart a reusable Subchart
Create Subcharts to reuse common Flow Chart programming. This reuse speeds
development and testing, since you only create and debug a chart once. When
you create a Subchart, you add arguments specific to the chart. Another Flow
Chart can then call the Subchart and assign values to these chart-specific tags.