1. 26 Jan 06Marine Pace - AB/CO1 LEIR Controls : Gain of Experience for the Running-in of LHC Marine Pace on behalf of AB/CO and LSA

2. 26 Jan 06Marine Pace - AB/CO2 Outline LEIR Controls Background Background Challenges Challenges Gain of experience in view of LHC Gain of experience in view of LHC Conclusions Conclusions

3. 26 Jan 06Marine Pace - AB/CO3 Background Major constraints Major constraints Use controls designed for the LHC Apply unified controls from the merge PS and SL Controls Groups Integrate legacy controls from existing PS accelerators A test-bed for new standard solutions in view of LHC A test-bed for new standard solutions in view of LHC Used for the first time under operational conditions To be deployed in LHC & its pre-injectors at later stage An anticipated challenge for the CO Group An anticipated challenge for the CO Group

4. 26 Jan 06Marine Pace - AB/CO4 Challenges Technical Technical Customize/enhance/generalize LHC controls Were implemented for transfer lines But LEIR is a circular + cooling + multi-cycling accelerator Practically validate LHC controls Deeper validation than TT40 & Ti8 Deploy new unified controls from PS and SL While respecting operational milestones Tight schedule Objective: provide a minimum set of functionalities & tools to operate the machine Cultural Cultural Define a unique strategy from historically different solutions and habits on both sides Set-up productive developer teams Convince Operations to understand new concepts and use new tools / methods

5. 26 Jan 06Marine Pace - AB/CO5 Consoles Application Servers Front End Controls Middleware GM device Legacy XMotif App Config DB Snapshot of a hybrid controls system (not complete) LSA Core Beam Steer App Setting Gene- App LSA DB TRIM App FESA device Generic App WorkingSets Knobs

6. 26 Jan 06Marine Pace - AB/CO6 Outline LEIR Controls Background Background Challenges Challenges Gain of experience if view of LHC Gain of experience if view of LHC Technical perspective Cultural perspective Conclusions Conclusions

7. 26 Jan 06Marine Pace - AB/CO7 Gain of experience in view of LHC Technical Perspective Controls for LHC deployed at LEIR Controls for LHC deployed at LEIR Front end Hardware Front end Software Application Software Analogue Signal Observation System Sequencing and Timing - CBCM Alarms – LASER Common Console Manager - CCM Device Access interface – JAPC Controls Middleware – CMW …. where LEIR brought a significant experience

8. 26 Jan 06Marine Pace - AB/CO8 Front End Hardware Front end VME machines Front end VME machines LHC standard technology Wiener Crates hosting CES PowerPC RIO2/3 processor Experience Minor problem solved Worked well during operation from the start Timing Receiver Module - CTR Timing Receiver Module - CTR Designed for the LHC, deployed at LEIR Experience In-depth validation of main functionalities Worked well during operation from the start  Very smooth integration of LHC HW components

9. 26 Jan 06Marine Pace - AB/CO9 Front End Software Front-End Software Architecture - FESA Front-End Software Architecture - FESA New framework for real-time device software development Widely used at LEIR: BT, BDI, RF, TIMING devices Experience LEIR too early for FESA - Missing commissioning time  Lack of stability and maturity (for a significant part of the commissioning)  Late delivery of some important features  Releasing process not fully mastered Main functionalities now in place and validated Major progress compared to old FE software framework  Proven to be efficient + adequate Stringent software release policy decided  Essential for CO that it was tested in LEIR

10. 26 Jan 06Marine Pace - AB/CO10 LHC Software Application – LSA Settings Management Settings Management Challenging cycle definition Cycle to USER mapping: many USERs, multi-USER cycle Varying optics in cycles Cycle in terms of Brho-dot Complex parameter space Eddy Current Compensation Electron Cooler Compensation Trim Trim Challenging requirements Brho-dot, Brho trims Plus incorporation with cycle. Plus propagation across USERs Orbit Orbit Full integration of LSA core components Drive, Trim, Optics,…

11. 26 Jan 06Marine Pace - AB/CO11 LHC Software Application – LSA (cont’d) Experience Experience Design proven powerful Data model, 3 tier architecture, core functionality Adaptation to LEIR relatively easy Extremely valuable validation Lot of debugging and concept straightening performed Adaptation made LSA more complete and versatile  An important milestone towards LHC controls

12. 26 Jan 06Marine Pace - AB/CO12 Generic Application Software – Working Sets / Knobs Widely used at LEIR Widely used at LEIR Java re-write of legacy generic applications Java re-write of legacy generic applications Lower-level controls of individual parameters Lower-level controls of individual parameters Experience Experience Main functionalities are now in place Helped improvement of Middleware and FESA No specification for LHC yet but … Might be an interesting candidate for machine development Fast setting-up of controls environment for a new device Will be used for CNGS, CESAR, SPS RF timing,…

13. 26 Jan 06Marine Pace - AB/CO13 Analogue Signal Observation System OASIS Designed for all CERN machines, deployed at LEIR Designed for all CERN machines, deployed at LEIR Experience Experience Significant validation Scalability (partially) proven ~ 200 signals Software architecture (3 tier) well suited Good performance of FESA server and Application server New Acqiris oscilloscope modules validated Lots of issues solved during commissioning Main functionalities in place now Solution underway for slowness of GLOBAL SIGNAL connections  In-depth validation performed in view of LHC

14. 26 Jan 06Marine Pace - AB/CO14 What we learnt Cultural Perspective Cultural difference PS-SPS was a real challenge Cultural difference PS-SPS was a real challenge Controls providers: extra effort & time to overcome cultural differences LEIR Operators from a unique culture – PS LEIR OP would have preferred traditional PS-style controls to be deployed NO LEIR operator participated in the applications development Experience Context was not favorable to a mass deployment of new / LHC controls Closer collaboration CO  LEIR OP in the SW development projects would have helped But also a great opportunity But also a great opportunity Cross pollination between PS and SPS approaches Fruitful experience for all people who actively participated in the specification, design and development

15. 26 Jan 06Marine Pace - AB/CO15 What we did NOT learn LEIR is a small machine LEIR is a small machine Scalability of SW architecture and core components NOT validated Might be an issue. Need of a full scale validation. LEIR is a harmless machine LEIR is a harmless machine Critical systems for LHC NOT validated Power and Beam interlocks Real Time feedbacks Quench protection Cryogenics Collimation … And related services: post mortem, logging….. NO experience in Unified Industrial Controls UNICOS NO experience in Unified Industrial Controls UNICOS

16. 26 Jan 06Marine Pace - AB/CO16 Conclusion The starting point The starting point LEIR OP and CO had different goals for LEIR OP wanted to commission LEIR with 100% functional and reliable controls CO and LSA team used LEIR as a test bed for LHC software The outcome The outcome Controls made work more difficult for LEIR-OP But it did not prevent them from operating the machine A “Not perfect but operational” controls system is available From CO viewpoint we achieved an important milestone towards LHC