| Paper | Title | Page |
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THPPC046 |
The Control System of the Water-cooled DCM in SSRF | |
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| This paper introduces the principle of the Water-cooled Double Crystal Monochromator (DCM) in SSRF (Shanghai Synchrotron Radiation Facility). There are two stepper motors, three DC servo motors and two Piezos. One VME/IOC is used to control the stepper motors, and one PC/IOC is used to control others. The software is developed with EPICS. The functions of the control system include moving single motor, fixing the height of two crystals while scanning the Bragg angle, saving and restoring the physical parameters. This paper illustrates how to use motor records, transform records and the EPICS database linking mechanism to form soft loops to realize the energy regulation and the coordination motion. The trial results have revealed the stability and reliability of the system. | ||