VXI based Beam Measurement System in HLS

The paper introduces three beam measurement systems based on the VXI bus in Hefei Light Source(HLS)，Hefei storage ring’s DC current transformer measurement system(DCCT)，beam close orbit detection system(COD) and photon position measurement system. Three measurement systems are integrated in one VXI DAQ module. An IPC controls the systems through an MXI2 cable, and supplys the service of sending data package in the LAN. The software is programmed by LabVIEW, which reduces bus much developing work.