A distributed monitoring and control system

A monitoring and control system designed and implemented by Fermilab's Development and Test Department is presented. The system consists of a set of configurable communicating distributed objects. It includes graphical user interfaces, archivers, a data acquisition subsystem, and direct control components. The system is open and its functionality can be altered by: a) selecting modules that plug into an event-based software bus, b) developing new modules with help of the existing APIs to access system resources, and c) modifying system configuration data. This paper presents the system architecture, discusses its unique features, and describes applications of the system to control tests of superconducting accelerator magnets.