DSP-BASED LOW LEVEL RF CONTROL AS AN INTEGRATED PART OF DOOCS CONTROL SYSTEM

The Distributed Object Oriented Control System (DOOCS)[1] has been developed at DESY as a control system for FLASH (Freie-Elektronen-LASer in Hamburg)[2]. The DSP based low level RF control system is one of the main subsystems of the linac. Several DOOCS device servers and client applications have been developed to integrate low level RF control into the FLASH control system. The DOOCS approach defines each hardware device as a separate object and this object is represented in a network by a device server, which handles all device functions. A client application can have access the server data using the DOOCS application programming interface (API). A set of generic and specially devoted programs provide the tools for the operators to control the RF system. The RF operation at the linac is being automated by the DOOCS implementation of finite state machine servers.