Migration of the S-DALINAC accelerator control system to an EPICS-based system

The S-DALINAC has been controlled by a non-standard hand-made control system for twenty years. During the last years the development of this control system did not keep up with the needs of the operators. A lot of time had to be invested into the development of basic functionality that modern control system frameworks already provide. EPICS was chosen as a basis for all new components because of its reliability and its active community. Up to now several major accelerator sub-systems have been successfully migrated to EPICS and Control System Studio. Simultaneous to the work on the software the network infrastructure has been changed radically to improve security. Extensive use of virtualization techniques helps to increase availability and to centralize administrative tasks. Automatic deployment ensures reproducibility and fast disaster recovery.