Hardware and software architecture for the integration of the new EC waves launcher in FTU control system

The role of high power electron cyclotron (EC) waves in controlling magnetohydrodynamic (MHD) instabilities in tokamaks has been assessed in several experiments, exploiting the physical effects induced by resonant heating and current drive. Recently a new {EC} launcher, whose main goal is controlling tearing modes and possibly preventing their onset, is being implemented on FTU. So far most of the components of the launcher control strategy have been realized and successfully tested on plasma experiments. Nevertheless the operations of the new launcher must be completely integrated into the existing one, and to {FTU} control system. This work deals with this final step, proposing a hardware and software architecture implementing up to date technologies, to achieve a modular and effective control strategy well integrated into a legacy system. The slow control system of the new {EC} launcher is based on a Siemens {S7} Programmable Logic Controller (PLC), integrated into {FTU} control system supervisor through an {EPICS11EPICS} - Experimental Physics and Industrial Control System [1]. input output controller (IOC) and an in-house developed Channel Access client application creating an abstraction layer that decouples the {IOC} and the {PLC} from the {FTU} Supervisor software. This architecture could enable a smooth migration to an EPICS-only supervisory control system. The real time component of the control system is based on the open source {MARTe22MARTe} - Multi-Threaded Application Real-Time Executor [2]. framework relying on a Linux real time cluster, devoted to the detection of {MHD} instabilities and the calculation of the injection angles and the time reference for the radiofrequency power enable commands for the {EC} launcher.