The J-TEXT CODAC system design and implementation

• J-TEXT CODAC system is a control system for J-TEXT tokamak based on EPICS.
• Custom-built EPICS toolkit is developed to build the J-TEXT CODAC system.
• Some hardware standards are derived from ITER standard to put ITER technology to the test.
• Control system common functions are implemented and deployed the same way as plant systems the same tools are used.

Inspired by the ITER COntrol, Data Access and Communication (CODAC) and ITER instrumentation and control system, J-TEXT tokamak has upgraded its control system with J-TEXT CODAC system. The J-TEXT CODAC system is based on Experimental Physics and Industrial Control System (EPICS). The J-TEXT CODAC system covers everything in the J-TEXT control system including both central and plant control systems, similar to the ITER I&C system. J-TEXT CODAC system is built around a single central control system called Central CODAC system. All the control functions including conventional control, interlock, safety and other common services are supervised by CCS. The J-TEXT CODAC system has been implemented and tested on J-TEXT. It not only tests some of the ideas in ITER CODAC in real life, but also explores the feasibility of new approaches that is unique in J-TEXT CODAC system.