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Experiment Control Systems at the LHC

Experiment Control Systems at the LHC. An Overview of the System Architecture JCOP Framework Overview Protocols used in LHC Experiments. Custom. Commercial. FSM. Supervision. SCADA. Process. DIM. OPC. Management. Communication Protocols. VME/SLiC. PLC/UNICOS. Field. Management.

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Experiment Control Systems at the LHC

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  1. Experiment Control Systems at the LHC An Overview of the System Architecture JCOP Framework Overview Protocols used in LHC Experiments

  2. Custom Commercial FSM Supervision SCADA Process DIM OPC Management Communication Protocols VME/SLiC PLC/UNICOS Field Management Field buses & Nodes Sensors/devices Controls Technologies in the LHC Era Layer Structure Technologies Configuration DB, Archives, Storage Log files, etc. WAN LAN LAN Controller/ PLC Other systems (LHC, Safety, ...) VME Field Bus Node Node Experimental equipment Based on an original idea from LHCb Joint PVSSII and JCOP Framework Course

  3. Supervisory Level • Supervisory Control And Data Acquisition (SCADA) • Commercial solution • JCOP has chosen PVSS from ETM • Single SCADA Product CERN-wide • Finite State Machines (FSM) • Custom solution • JCOP is using State Management Interface (SMI++) which was developed for the DELPHI experiment Joint PVSSII and JCOP Framework Course

  4. Integration of PVSS and FSM • PVSS II has tools for: • Device Description (Configuration Database): • Data Points, and Data Point items • Device Access • OPC, ProfiBus, Drivers • Alarm Handling • Generation, Filtering, Summarising, Masking, etc • Archiving, Logging, Trending • User Interface Builder • Alarm Display, Access Control, etc. Joint PVSSII and JCOP Framework Course

  5. Integration of PVSS and FSM • PVSS II does not have tools specifically for: • Abstract behaviour modelling • Finite State Machines • Automation & Error Recovery • Expert System • But… • FSM (SMI++) does Joint PVSSII and JCOP Framework Course

  6. First Conclusions • At the supervisory layer two important technologies are used; SCADA and FSM • JCOP has selected a commercial SCADA system (PVSS) and a custom FSM (SMI++) • The integration of these two is very important to support the proposed operational concept • There is a Framework providing a comprehensive set of components, tools and utilities required by the four LHC experiments • Reduce overall development effort • Reduce diversity and ensure a coherent ECS • The Framework is a key to maximising the benefit of the use of the chosen technologies Joint PVSSII and JCOP Framework Course

  7. Experiments using PVSS • LHC Project • all four experiments have prototype projects • used for testbeam controls • Fixed Target Experiments • COMPASS • framework developed • in production • HARP • using experience and framework from COMPASS • (was) in production • NA60 • benefit from COMPASS developments • in production Joint PVSSII and JCOP Framework Course

  8. Second Conclusions • PVSS selected for the LHC experiments after an extensive evaluation (> 10 man-years) • PVSS is now the recommended SCADA product CERN-wide • PVSS is used extensively within the LHC experiments and increasingly in other domains • CERN desires a long-term partnership with ETM and believes this will be beneficial for both partners • ETM on-site support established Joint PVSSII and JCOP Framework Course

  9. PVSS Distribution software available licenses can be requested free-of-charge JCOP Framework redesigned version available all development should follow the guidelines How to proceed? http://cern.ch/itcobe Joint PVSSII and JCOP Framework Course

  10. PVSS Support • general support from the DCS team of your experiment or sector • web site (http://cern.ch/itco) • newsgroup (cern.pvss) • first-line support from IT/CO • ITControls.Support@CERN.CH • second-line support by ETM Joint PVSSII and JCOP Framework Course

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