Introduce of Linac Control System Xiangcheng.Kong Control Group
Architecture
Main Function n PS control n Vacuum monitor n Modulator monitor n Step/DC Motor control n safe system n
Hardware developer
Remote IO feature
IO Statistics n Vacuum PS Step Motor Total DA4x161x AD8x16+62x DI8x16 1x DO1x161x System estimate : ¥350,000 approximate $42,000
Special treatment for RS-422 Extra UART reception schematic diagram *Double port out for RS-422
Software environment n Windows 98/NT n Visual c++ n Turbo c n NI LabView n ASM51
Console n Trace Ball used as PS regulator n MDI Alarm n www Server for diagnosis n Channel Scan
Data Exchange Process Control Program TCP/IP UDP/IP 232 Intermediate transceiver for Intranet 232/CAN & 232/422 Bus Driver
The feature of 232 transceiver Intermediate n 10 user if TCP Link n Provide UDP Link Access Method n User ID Verify n FIFO Array n Re-transmit while error occur n Home Made
(Continue) The feature of 232 transceiver Intermediate
(Continue) the 232 transceiver Intermediate for intranet
Diagnosis Tool: Channel Access
Threshold value Adjustment App.
Klystron Output Display
Klystron Output Display for Intranet
Discuss n Reliable Link is not guarantee in TCP/IP for a long time because of noise. increate main nodes for data exchange. UDP link for monitor system n Local DataBase establish for physics beam tune and them interface. use commerce DB. server/client Architecture
Conclusion n Control system is flexible and open. n System diagnosis perfect include. n Only 2~3 person to do all hardware and software. n Graphics class is developing because of less human resource. n EPICS will start basing on the fieldbus lay.
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