Article ID Journal Published Year Pages File Type
271635 Fusion Engineering and Design 2014 5 Pages PDF
Abstract

•The timing system achieved tree structured timing network with only one type of timing module.•This system is integrated into J-TEXT COADC which is an EPICS based control system.•This system handles multiple timing sequences and events.•This system has been deployed on J-TEXT and working properly in daily experiments.

This paper describes the timing system designed to control the operation time-sequence and to generate clocks for various sub-systems on J-TEXT tokamak. The J-TEXT timing system is organized as a distributed system which is connected by a tree-structured optical fiber network. It can generate delayed triggers and gate signals (0 μs–4000 s), while providing reference clocks for other sub-systems. Besides, it provides event handling and timestamping functions. It is integrated into the J-TEXT Control, Data Access and Communication (J-TEXT CODAC) system, and it can be monitored and configured by Experimental Physics and Industrial Control System (EPICS). The configuration of this system including tree-structured network is managed in XML files by dedicated management software. This system has already been deployed on J-TEXT tokamak and it is serving J-TEXT in daily experiments.

Related Topics
Physical Sciences and Engineering Energy Energy Engineering and Power Technology
Authors
, , , , , ,