Upgrade of Hyper ECR Ion Source control system for control system integration at RIBF

In RIKEN RIBF, Hyper Electron Cyclotron Resonance Ion Source (Hyper ECRIS) of CNS is used to produce a variety of metal ion beams for injection into the AVF cyclotron. The control system is constructed by stand-alone system with a closed network, and it consists of Xicom TWTA with serial communication and MELSEC-A series PLC as controllers. Hyper ECRIS is controlled by using a Windows-based client PC implemented in the ion source room. Therefore, the client PC in the ion source room is accessed by the accelerator operator from RIBF control room by Remote Desktop Protocol, when beam tuning of Hyper ECRIS is required. On the other hand, an unintegrated control system between Hyper ECRIS and the RIBF accelerator causes inefficient cross-operation. However, this control system cannot be replaced by the control method to EPICS by only convenience of RIBF accelerator side, because Hyper ECRIS is managed by CNS. For this reason, without renewing a controller, the upgrade system using EPICS was designed while leaving conventional method. Additionally, the useful operator interface was constructed by utilizing CSS/BOY for the accelerator operator. (author)