Speaker
Alexander Singovski
(Tate Lab.of Physics, High Energy Physics)
Description
The CMS ECAL Low Voltage system is made of 136 WIENER MARATON power supplies, delivering about 250kW of power to the on-detector electronics. The system is controlled by the PVSS-based Detector Control System (DCS), which communicates with the MATATON local controllers via 11 CANbus brunches. The stability of the 2.5V power, delivered to the Very-Front-End electronics is controlled by the DCU readout, accessible via DAQ - Control Token Ring chain. The setup parameters and the system status has to be read/stored from/to the Detector Configuration/Conditions data bases.
The overall control system performance, as well as the performance of each component will be analyzed. The timing and reliability of the Framework - PVSS-OPC server-Local controller chain will be presented. Connection to the DAQ for the DCU readout and status display will be discussed.
Primary author
Alexander Singovski
(Tate Lab.of Physics, High Energy Physics)
