The OpenSCADA project consists of modules which taken together create the entire SCADA system.

Core modules (Atlantis Project )

DA-Module: The data access module is the base module of the entire OpenSCADA project. It consists of interfaces, a network layer definition and a data item (primary items) definition.

AE-Module: The alarms and event module is an archive in which changes of data items are stored.

HI-Module

HMI-Module (Test): The HMI test environment provides an object library to visualize data items (primary and secondary) coming from the simulation server.

Extended modules (implemented in the Atlantis Project)

CALC-Module: The calculation module uses values from data items for mathematical and logical operations, and them stores the calculated values in secondary items.

VI-Module: The virtual server module provides a redundant server environment.

SI-Module: This is the simulation environment of the OpenSCADA project.

HMI-Module: The HMI production environment provides an object library to visualize data items (primary and secondary).