Speaker
Description
A reliable control system is essential for long-term linac operation. At RIKEN, RILAC is a heavy-ion linear accelerator and plays an important role in supplying beams for superheavy-element research. In the existing RIBF control system, many devices are integrated into EPICS through TCP/IP-based socket communication. Although these interfaces are flexible and cost-effective, reconnection after unexpected power loss or dirty shutdown of devices and network switches is not always successful, because socket connections may not be closed properly. Such failures can require restarting EPICS IOCs and reduce beam availability and operational efficiency. Custom-designed devices and dedicated interfaces have supported the RIBF control system for many years, but their development and maintenance require considerable effort. To improve reliability and maintainability toward the next RIBF project, standard industrial interfaces and embedded EPICS technology have been introduced into the RILAC control system. This paper reports the implementation and operational use of EtherNet/IP device interfaces, Modbus substation monitoring, and embedded EPICS on industrial controller hardware.
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