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Cryo Ops 2008

22–26 Sept 2008
CERN
Europe/Zurich timezone
<font color="red">WARNING: 29th August, 2008 registration deadline</font>

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Session

CONTROL

C1
24 Sept 2008, 13:30
503/1-001 - Council Chamber (CERN)

503/1-001 - Council Chamber

CERN

162
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Description

control philosophy and automation, optimization of operating parameters, Man Machine Interface (SCADA), reliability of industrial PLC (operating system issues …)

Presentation materials

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  1. 23. Process control systems for the LHC cryogenic systems
    Dr Philippe GAYET (CERN)
    24/09/2008, 13:30
    CONTROL
    The LHC Cryogenic control system launched in 1999 followed a maturation process to reach the present layout. This evolution led by technical and operational issues will be reviewed in the presentation together with the initial operational requirements. We will present the current operational tools such as control infrastucture monitoring, access control principle, process simulation......
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  2. 7. The Control System for the cryogenics in the LHC tunnel
    Dr Paulo Gomes (CERN)
    24/09/2008, 14:00
    CONTROL
    The cryogenics process automation of each of the 8 LHC sectors is based on 2 Siemens-S7® Programmable Logic Controllers (PLC), each running 250 closed control loops, 300-500 alarms and interlocks, and the process phase sequencer. Distributed along the LHC circumference, 15 000 cryogenic sensors and actuators are accessed through industrial field networks (Profibus® and WorldFIP®), running...
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  3. 10. Web-based tool for reporting operational non-conformities and tracking associated corrective actions
    Mr Christoph Balle (CERN)
    24/09/2008, 14:30
    CONTROL
    The cryogenic instrumentation of the LHC-machine includes 15000 sensors and actuators. In the first phase of the hardware commissioning of the accelerator the correct functioning of the measuring channels was checked, while in the second phase the operation-team did a fine-tuning of the cryogenic system based on the acquired measurements. For this purpose and when running the machine in the...
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  4. 12. Tools for the maintenance of Siemens PLCs and associated Profibus® fieldbuses and intelligent instrumentation
    Mr Antonio Tovar-Gonzalez (CERN)
    24/09/2008, 15:30
    CONTROL
    Several tools have been developed to assist on the maintenance and diagnostics of the LHC control hardware. These tools run independently of the control infrastructure, do not require any particular computer configuration and are quite fast to load and run. Two real-time tools based on TCP/IP communication between a PC and Siemens PLCs are implemented: - PLCdiag: shows the status of all...
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  5. 2. Unicos upgrade project of the CERN obsolete cryogenics control systems
    Mr Marco Pezzetti (CERN)
    24/09/2008, 16:00
    CONTROL
    The cryogenic infrastructure at CERN was originated in the 1960s by bubble chambers and the associated superconducting solenoids. Since then, complex cryoplants have been installed to provide cooling power from 400 W to 18 kW at 4.5 K, requiring high technical capabilities from the control system. The LHC cryogenics has recently adopted the CERN standard control framework UNICOS in order to...
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