Insertion devices control development at SRRC

Insertion devices are the most important gadget of the third generation Taiwan Light Source at SRRC. These insertion devices include the turn-key systems and in-house developed systems in SRRC. The corresponding control configurations are different due to historical reason. However precision, fastness, simplicity, and uniformity in insertion devices control are the most desirable from practical viewpoint. The proposed uniform control systems are first applied successfully to undulator U10 prototype and experimental one meter length adjusted polarizing undulator. The new system provides several features which are not available in existed insertion device control system. The residual field compensation procedure can be done with 100 times per second. The compensation table is updated from the server of the control system. The software design supports the beamline users to adjust the gap after granting permission from the control room operator. The detailed descriptions about the features and performances will be presented in this report