IPAC2013 - List of Authors (Xuan, K.)

Paper	Title	Page
WEPEA027	Nonlinear Model Calibration in Electron Storage Rings via Frequency Analysis	2558
	G. Liu, W. Li, L. Wang, K. Xuan USTC/NSRL, Hefei, Anhui, People's Republic of China
	Frequency analysis of turn-by-turn BPM data is a very useful numerical method for analysing the detrimental effect of the nonlinear resonances in storage rings, and which has been widely used for nonlinear resonances measurement and correction. We applied this method in this paper for calibrating the nonlinear model by numerical fitting of the sextupole components with the effect of radiation damping and decoherence of the betatron oscillation in HLSII storage ring.

THPEA016	EPICS Driver for Phoenix Contact Redundant PLC	3176
	G. Liu, C. Li, J.Y. Li, J.G. Wang, W. Xu, K. Xuan USTC/NSRL, Hefei, Anhui, People's Republic of China
	The RFC 460R PLC from Phoenix Contact is a high-performance controller that has been extended to offer redundancy functionality. This redundancy functionality is vital for uninterrupted processes in complex systems and large plants. In order to integrate this product into EPICS environment, an EPICS Driver is developed. This driver is intended to connect a pair of RFC 460R redundant PLCs via TCP/IP to an EPICS IOC. In this paper, the communication mechanism, software implementation and the test results of a prototype system will be described.

Paper

Title

Page

Nonlinear Model Calibration in Electron Storage Rings via Frequency Analysis

2558

G. Liu, W. Li, L. Wang, K. Xuan
USTC/NSRL, Hefei, Anhui, People's Republic of China

Frequency analysis of turn-by-turn BPM data is a very useful numerical method for analysing the detrimental effect of the nonlinear resonances in storage rings, and which has been widely used for nonlinear resonances measurement and correction. We applied this method in this paper for calibrating the nonlinear model by numerical fitting of the sextupole components with the effect of radiation damping and decoherence of the betatron oscillation in HLSII storage ring.

THPEA016

EPICS Driver for Phoenix Contact Redundant PLC

3176

G. Liu, C. Li, J.Y. Li, J.G. Wang, W. Xu, K. Xuan
USTC/NSRL, Hefei, Anhui, People's Republic of China

The RFC 460R PLC from Phoenix Contact is a high-performance controller that has been extended to offer redundancy functionality. This redundancy functionality is vital for uninterrupted processes in complex systems and large plants. In order to integrate this product into EPICS environment, an EPICS Driver is developed. This driver is intended to connect a pair of RFC 460R redundant PLCs via TCP/IP to an EPICS IOC. In this paper, the communication mechanism, software implementation and the test results of a prototype system will be described.