What is a logic point, and how is it different from an Event-Triggered module

Logic points are event-triggered modules that are defined as database points. They are created and removed as a database point whereas the Event-Triggered modules are entirely managed by the Automation Engine.
Logic points can be used to create easily reusable logic, primarily when used as part of a Class. Logic points that are part of a Class can use relative class names to handle dedicated logic for various members of their own class. This capability allows system integrators to create highly intelligent Classes with built-in automation that can be replicated by copying the Class objects.