We are currently in the process of migrating the content from openSCADA to Eclipse SCADA. Right now you can also have a look at the openSCADA wiki at: https://openscada.atlassian.net/wiki . Most of the content is still valid for Eclipse SCADA (except the naming schema org.openscada of course!).
Things you can do right now:
- Read the tutorial EclipseSCADA/Tutorials/EclipseMagazin