DCS Workshop summary TB 13.9 2001 L.Jirden

1. DCS Workshop summaryTB 13.9 2001L.Jirden DCS Workshop summary - L.Jirdén

2. DCS workshop program • DCS Project Organization • Work plan and planning • Detector Controls Requirements • Muon Arm • Summary • Process Control Applications • Guidelines • Common applications to prototype • Experiment Services overview • Cooling, Electricity, Gas, Safety • Architecture, Tools, etc. • DCS architecture ideas • Framework tools • STAR controls • CAEN DC-DC converters DCS Workshop summary - L.Jirdén

3. DCS workshop program • DCS Project Organization • Work plan and planning • Detector Controls Requirements • Muon Arm • Summary • Process Control Applications • Guidelines • Common applications to prototype • Experiment Services overview • Cooling, Electricity, Gas, Safety • Architecture, Tools, etc. • DCS architecture ideas • Framework tools • STAR controls • CAEN DC-DC converters DCS Workshop summary - L.Jirdén

4. DCS Work Plan • What is a Work Plan? • It defines the ultimate goal and all the intermediate steps to be performed, when and by whom to achieve the goal. • Ultimate goal: A working DCS ready for exploitation end 2005 ! DCS Workshop summary - L.Jirdén

5. Initial Steps • Agree on project definition • Accepted by TB end may • Establish resources, create ACC team • Lennart Jirden • Andre Augustinus • Tarek Ben Ahmed 50% • Sorina Popescu (PJAS) • Physicist/engineer vacancy • Establish ALICE controls board • DCS detector contact people nominated DCS Workshop summary - L.Jirdén

6. Initial steps Cont. • Define organization of work • We need to set up a “Work Plan” • Start at this meeting • Identify applications for prototyping • Start at this meeting (Andres presentation) • Define milestones and detailed planning • Start at this meeting • Start regular progress meetings • Start later DCS Workshop summary - L.Jirdén

7. Global Layout PrimaryServices Associated Projects Supervisory Function magnet LHC ECS gas Offline electricity Trigger cooling DCS safety DAQ access ITS TPC MUON pixel strip drift T T p hv hv hv hv hv lv lv lv lv lv Detectors DCS Workshop summary - L.Jirdén

8. Strategy • A. Process control for the detectors • Identify common requirements • Design “ALICE common solutions” • Pilot applications - test cases • Collaboration ACC – detector groups • Aim to cover all main functions – minimize number of special cases • B. Services • Determine required functions and responsibilities • Pilot applications – test cases • Collaboration ACC – detector groups – CERN services DCS Workshop summary - L.Jirdén

9. Strategy • C. Operations and supervisory functions • Link detector process control to supervisory layer • Implement vertical slice & use PVSS framework tools • Pilot applications – test cases • Collaboration ACC – detector group – JCOP • D. Links to ALICE DAQ, TRG, offline • Initiate common projects • Pilot applications – test cases • Collaboration ACC – DAQ, TRG, offline – detector group DCS Workshop summary - L.Jirdén

10. Strategy • E. Links to LHC • Experiment common project (JCOP) • F. Controls Infrastructure • Define requirements • Collaboration ACC – DAQ – Infrastructure group DCS Workshop summary - L.Jirdén

11. Organization Of Work • Typical project phases • Design • Production/purchasing • Installation • Commissioning • Operation • DCS Components • Detector sub systems • Links to Primary Services. • Links to associated systems. • Operations and supervisory functions. • Controls infrastructure DCS Workshop summary - L.Jirdén

12. Ex: Design a control scheme for a subsystem • Design process • User requirements document • How detailed? TPC field cage example – template. • Boundary conditions • CERN standards – YES! • Which ALICE standards? • PLC’s, field bus, sensors, gas w.g. standards, etc. • common purchasing? • To be defined first! • Process Control layout projected • Prototype and test • Link to supervisory layer – integrate with framework • Prototype and test DCS Workshop summary - L.Jirdén

13. When and by Whom? • When? DCS planning! • DCS planning file created • Linked to ALICE wide planning • Input from each detector group required • Steps • Dates • By whom? Responsibilities! • Pilot projects shared ACC – detector group • Otherwise detector groups DCS Workshop summary - L.Jirdén

14. DCS Planning 2001 02 03 04 05 06 DESIGN PROD. PURCH. INST. COMM. BEAM OPERAT. DCS Workshop summary - L.Jirdén

15. DCS Planning 2001 02 03 04 05 06 DESIGN PROD. PURCH. INST. COMM. BEAM OPERAT. SOLUTION PROJECTED SUPERVISORY LAYER PROTOTYPE & TEST USER REQ. DOC. DCS Workshop summary - L.Jirdén

16. DCS workshop program • DCS Project Organization • Work plan and planning • Detector Controls Requirements • Muon Arm • Summary • Process Control Applications • Guidelines • Common applications to prototype • Experiment Services overview • Cooling, Electricity, Gas, Safety • Architecture, Tools, etc. • DCS architecture ideas • Framework tools • STAR controls • CAEN DC-DC converters DCS Workshop summary - L.Jirdén

17. Requirements • Where are we currently • Collected information from TDRs • Precious input during May DCS workshop • Information is coming from questionnaire • Discussions, up to now with 2 detectors • To gain experience • In view of prototyping • Concentrating on the more technical aspects • As a side effect we collect information on expertise / tests / prototyping in the detectors Requirements; When? DCS Workshop summary - L.Jirdén

18. Requirements • What will be next • Create a “database” • Hold the more “technical requirements” • Produce a document with the “functional requirements” • One URD per detector • Another questionnaire  • Template • Discussions • By no means frozen • the requirements should follow the developments of detectors and technology. Requirements; Next? DCS Workshop summary - L.Jirdén

19. DCS workshop program • DCS Project Organization • Work plan and planning • Detector Controls Requirements • Muon Arm • Summary • Process Control Applications • Guidelines • Common applications to prototype • Experiment Services overview • Cooling, Electricity, Gas, Safety • Architecture, Tools, etc. • DCS architecture ideas • Framework tools • STAR controls • CAEN DC-DC converters DCS Workshop summary - L.Jirdén

20. Common Solutions • Try to find communalities across detectors • Need requirements • Look what solutions already exist or are proposed • In ALICE • In other experiments (JCOP) • In the accelerator and services DCS Workshop summary - L.Jirdén

21. Objectives • The objectives of prototyping • Compose a “catalogue” of tested and supported solutions, easy to implement and maintain • Guidelines • Framework, examples • Inconveniences: • To start it might be heavy on resources (manpower, money and time), but it’s not a waste, it is an investment • System might at first be “over-dimensioned” DCS Workshop summary - L.Jirdén

22. Current status • Currently concentrating mainly on the process level of DCS • Two pilots: • TPC • High Voltage • Low Voltage • Cooling • Fieldcage (drift field) • HMPID • High Voltage • Low Voltage • Fluid system DCS Workshop summary - L.Jirdén

23. Future developments • Continue work on pilots • Start work on a “vertical slice” of ALICE • Build a control system from the hardware up to the highest level • Validate the proposed architecture of the DCS (see a later talk) DCS Workshop summary - L.Jirdén

24. DCS workshop program • DCS Project Organization • Work plan and planning • Detector Controls Requirements • Muon Arm • Summary • Process Control Applications • Guidelines • Common applications to prototype • Experiment Services overview • Cooling, Electricity, Gas, Safety • Architecture, Tools, etc. • DCS architecture ideas • Framework tools • STAR controls • CAEN DC-DC converters DCS Workshop summary - L.Jirdén

25. Services overview • Cooling & Electricity • Primary circuits controlled via ST div – SCADA • Secondary circuits controlled via ALICE – DCS – SCADA • Status information exchanged via servers • Collaboration contacts established • Gas • Gas control handled by Gas WG • Based on JCOP standards • Collaboration contacts established • Detector Safety System • LHC Experiments WG started • Scope and requirements being defined DCS Workshop summary - L.Jirdén

26. Conclusion • DCS project launched – some initial steps now effective • Basic strategy defined • Basic Components and project phases outlined – more details needed! • Ready work plan aimed for end 2001 • DCS Planning file created – more details needed! • Input from Detector Groups required! DCS Workshop summary - L.Jirdén

27. Conclusion • Workshop well attended • Good for information – limited input • Input via questionnaires and individual meetings DCS Workshop summary - L.Jirdén