Chang, Y.-T.

Paper	Title	Page
TUP005	Preliminary Planning of Taiwan Photon Source Control Network	105
	Y.-T. Chang, J. Chen, Y. K. Chen, Y.-S. Cheng, K. T. Hsu, S. Y. Hsu, K. H. Hu, C. H. Kuo NSRRC, Hsinchu
	The future Taiwan Photon Source (TPS) control network is used for the accelerator system control and it is one of the most important infrastructures for the control system which is based upon the EPICS toolkit framework. The TPS network is built to be a modern, reliable, flexible and secure environment between public and private Ethernet with various network control and monitor technique. These include of firewall, SNMP, QOS, VPN, etc. Network tunneling technique will be applied in the remote access, out of TPS especially. The Ethernet will be intensively used as field bus also, topology of the field bus is also considered. This paper will describe the preliminary planning and conceptual design for the TPS control system network. We also discuss the system architecture in this conference that consists of cabling topology, redundancy and maintainability.
	Poster
TUD006	Design Status of the TPS Control System	355
	K. T. Hsu, Y.-T. Chang, J. Chen, Y. K. Chen, Y.-S. Cheng, P. C. Chiu, S. Y. Hsu, K. H. Hu, C. H. Kuo, D. Lee, C.-J. Wang, C. Y. Wu NSRRC, Hsinchu
	The Taiwan Photon Source (TPS) project will build a new 3 GeV synchrotron light source at the site of NSRRC. Refinement of the TPS control system design is on going. The control system is based on EPICS toolkits framework. Guidelines for hardware platform and operating system choice will be addressed. Various EPICS test bed has be setup to evaluate selected hardware and software components. The TPS control system will provide versatile environments for machine commissioning, operation, and accelerator research. The open architecture will facilitate machine upgrade, modification easily and minimize efforts for machine maintenance. Performance and reliability of the control system will be guaranteed from the initial design phase. Current efforts will be summary in this report.
THP113	Upgrade the Machine Status Broadcast System by PHP Framework	895
	Y.-S. Cheng, Y.-T. Chang, J. Chen, Y. K. Chen, K. T. Hsu, K. H. Hu, C. H. Kuo NSRRC, Hsinchu
	To improve the display quality and enhance expandability of machine status broadcasting, the existing cable TV will be replaced by a network interface to transmit the machine status display. To access the display page without installing other toolkit easily, we use a network browser to show the machine status display. Thus we implement a broadcast system by the PHP Framework on Linux server and show main machine status, trend plots and images. Then we use a thin PC (loaded OS and browser) to combine LCD TV to show the full-frame display page. By means of it, the machine status display is clearer to be observed. On the other hand, to reduce impacts of the network bandwidth, we avoid using the additional applet to aggravate the network bandwidth. Our design will be based on low network loading to upgrade the machine status broadcast system. Moreover we will measure the variation of network throughput to learn the effect of numbers of accessing clients. According to the measurement result, we can estimate the relation between the network loading and numbers of accessing clients.
	Poster