The Diamond control system: five years of operations

The commissioning of the Diamond Light Source accelerators began in 2005, with routine operation of the storage ring commencing in 2006, and photon beamline operation in January 2007. The Diamond Control System uses the EPICS tool-kit and provides a high degree of integration of the underlying technical systems. These include all power converters, most diagnostics, vacuum systems, the machine protection system, insertion devices, RF amplifiers, girder alignment, front-ends, photon beamlines, experiment stations, instrumentation and detectors. Most of this equipment is interfaced through a range of generic VME I/O based on VME IP carriers, IP modules, transition cards and plant interface modules. It now supports the three accelerators and a suite of twenty photon beamlines and experiment stations. This paper presents an analysis of the operation of the control system and reviews the major developments that have taken place since the first operations