JACE controller Java Application Control Engine. (Rhymes with pace) The Tridium-manufactured controller that runs the core runtime Niagara software in a Java Virtual Machine (JVM), providing a station with direct support for field device integration plus enterprise LAN connectivity. Among other duties, each JACE controller acts as a web server, with some models capable of directly serving their own web graphics (GxPages). A JACE-NP model may optionally have the database service, with its own SQL application database (appdb). JDE: Java Desktop Environment. The engineering tool (program) used to create and monitor Niagara stations. Provides the same access to GxPages (graphics) as a web browser, plus many additional functions used to engineer control logic and manage station databases. MIME: or MIME types. Multipurpose Internet Mail Extensions. A specification for formatting non-ASCII messages so that they can be sent over the Internet. Servlets in a Niagara station support a number of MIME output options, including HTML table, comma-separated-values (CSV), and others. objects: Niagara stations are engineering using objects which have known properties, including inputs and outputs used for sharing information and control. There are many types of objects, including container objects and child objects. Some types of objects commonly viewed are log objects (for storing logged data) and GxPages (for viewing graphics). station: A Niagara station is a combination of services and processes that run in the JVM (Java Virtual Machine) in a JACE controller or Web Supervisor PC. It is engineered and represented as a collection of objects. A Web Supervisor station
