The detector control system for BABAR

The hardware/software system for the control of the BABAR detector at PEP-II is described. The contributions of a large and diverse collaboration were channeled into a standard hardware selection (VME crate, embedded CPU, fieldbus, etc.) and a uniform software environment, EPICS (Experimental Physics and Industrial Control System). These choices, with a judicious naming convention in place, allowed a distributed and modular development of the control system, which was then integrated within the Online System in the Interaction Hall. The design of the software to complement the EPICS layer is presented.