Schema Viewer is a communications utility used to download programs into the Fairmount Automation programmable controllers. It also serves, as its name implies, as a read-only viewer for control schemas (a schema is a graphical representation of a control scheme to be executed by the controller) developed using Fairmount Automation's Design Pad G4 software package. In addition to viewing schemas, Schema Viewer can:

• Perform most of the controller communication functions available in Design Pad (such as downloading a schema into a controller),
• Allow users to login and interact with secured devices,
• Configure security (for secured projects the users must be logged in with the Administrator right),
• Set initial values for unprotected variables, and
• Store a new project file path in the Workspace file when the workspace changes location.