Abstract
In synchrotron radiation facilities such as the High Energy Photon Source (HEPS), numerous motorized actuators are equipped on the optics devices of HEPS beamline to manipulate the orientation of crystals and mirrors, thereby altering the position and characteristics of X-rays. The motion control system (MCS) plays an important role in the optics devices of HEPS beamlines, such as monochromator, K-B mirror and sample plants. In order to acquire the specify properties of X-ray and satisfy the complex experimental requirements, MCS must have the ability to handle the complicated control demands. Therefore, HEPS has developed a standardized motion control system for synchrotron radiation applications, which is a distributed system based on EtherCAT fieldbus. The hardware of this system consists of the control unit and driver unit, which has the flexibility to suit for different applications. The software of MCS is designed under the Experimental Physics and Industrial Control System (EPICS), which is very popular in synchrotron radiation facilities all over the world. In this paper, the performance tests of IOC software were demonstrated, and a few flyscan applications were given, which include spiral scan, raster scan and position event trigger, to demonstrate the feasibility and effectiveness of this system.
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