OpMode consists of 3 main components. Modules,modes and areas.

**Module**: A collection of modes.
**Mode**: Mode component can be defined by 1 or more areas.
**Area**: Process PVs bounded by a period of time which indicate a mode. For better and more precise results you might want to define multiple areas.

{{ :opmode:opmode_components.png?nolink600 |}}

The above diagram could be translated into

{{ :opmode:opmode_components_example.png?nolink&600 |}}