Electronic interface board to monitor and control CERN´s sputter ion pump

摘要

This report presents the work developed during the master internship at the EuropeanOrganization for Nuclear Research (CERN). The described work resulted from two initialobjectives: improvement of the control system of vacuum sectors and the developmentof a new Pro bus-DP intelligent slave interface board for sputter ion pump controllers.Since the objectives were distinct, the work was split into two di erent projects.In the rst project, the control system for vacuum sectors of Large Hadron Collider,Super Proton Synchrotron and Complex Proton Synchrotron was improved. A new control rmware based in VHDL was developed, tested and upgraded for the control cards.The second project presented in this report involved the development of an electroniccard for sputter ion pump controllers. Currently, the communication between the Pro busnetwork and the ion pump controllers is performed by a remote input-output stationbased on the ET200 module from Siemens. The operation and status information of theion pumps and their controllers provided to the network are limited since the remoteinput-output station does not acquire all the available signals. Moreover, the physicalconnections between the remote input-output station and each ion pump controller is donewith a dedicated cable, which is prone to connection malfunctions. In order to reducethe complexity, improve the signal integrity and upgrade the monitoring and control ofthe ion pumps system, a new Pro bus-DP intelligent slave interface was developed. Itaims to provide direct Pro bus connection to the ion pump controller and to give tothe Pro bus master access to all its control signals, improving the controllers usabilityand exibility. In this report, the card topology, its internal modules, the rmware, theLabVIEW application and assessment tests are presented and described.