What question did this study set out to answer?

The aim is to establish a reliable, centralized control system for the DAFNE ϕ-factory to enhance its operational efficiency.

March 5, 2026Open Access

A CENTRALIZED CONTROL SYSTEM FOR THE DAFNE ϕ-FACTORY

MCMilardi C.PDPirro Di SMSerio M.

Key Points

The aim is to establish a reliable, centralized control system for the DAFNE ϕ-factory to enhance its operational efficiency.
Developed a centralized architecture for system control.
Utilized a central processor unit to manage communications.
Implemented a message passing scheme using mailboxes and fiber optic interfaces.
Constructed lower-level processing using the VME standard.
Established a central memory acting as a prototype machine database.
Enabled efficient communication with high-speed busses.
Achieved simplicity and reliability in system operations.

Abstract

We describe the control system for the new DAPHNE ϕ-factory under construction at the Frascati National Laboratories. The system is based on a centralized architecture for simplicity and reliabilty. A central processor unit coordinates all communications between the consoles and the lower level distributed processing power, and continuosly updates a central memory which contains the whole machine status. This memory constitutes the machine database prototype. A simple message passing scheme built on a system of mailboxes takes advantage of high speed busses and of Fiber Optic interfaces. Macintosh II personal computers are used as consoles. The lower levels are all built using the VME standard.

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