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Publication
Electronic interface board to monitor and control CERN´s sputter ion pump
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| 65.85 MB | Adobe PDF |
Authors
Abstract(s)
This report presents the work developed during the master internship at the European
Organization for Nuclear Research (CERN). The described work resulted from two initial
objectives: improvement of the control system of vacuum sectors and the development
of 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 electronic
card for sputter ion pump controllers. Currently, the communication between the Pro bus
network and the ion pump controllers is performed by a remote input-output station
based on the ET200 module from Siemens. The operation and status information of the
ion pumps and their controllers provided to the network are limited since the remote
input-output station does not acquire all the available signals. Moreover, the physical
connections between the remote input-output station and each ion pump controller is done
with a dedicated cable, which is prone to connection malfunctions. In order to reduce
the complexity, improve the signal integrity and upgrade the monitoring and control of
the ion pumps system, a new Pro bus-DP intelligent slave interface was developed. It
aims to provide direct Pro bus connection to the ion pump controller and to give to
the Pro bus master access to all its control signals, improving the controllers usability
and
exibility. In this report, the card topology, its internal modules, the rmware, the
LabVIEW application and assessment tests are presented and described.
Description
Keywords
Profibus-DP Controlo e automação industrial Sistemas embebidos Aquisição de sinal Microcontrolador