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SMP 3v0 - Introduction

SMP 3v0 - Introduction. afe achine arameters. P. S. M. receives accelerator information. generates flags & values. directly transmitted. and / or . broadcast. injection procedure. protection configuration. Beam Interlocks Collimation Beam Loss Monitors ….

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SMP 3v0 - Introduction

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  1. SMP 3v0 - Introduction afe achine arameters P S M receives accelerator information generates flags & values directly transmitted and / or broadcast injection procedure protection configuration Beam Interlocks Collimation Beam Loss Monitors … Extraction Interlocks *fast *safe *reliable *available CERN = System Safety

  2. Directly Transmitted

  3. Extraction Interlocks Transfer Lines Beam-1 = TT60 + TI2 Beam-2 = TT40 + TI8 Super Proton Synchrotron Large Hadron Collider Extraction Master Beam Interlock Controllers

  4. Extraction Interlocks Super Proton Synchrotron Large Hadron Collider

  5. Extraction Interlocks three beam transfer conditions: probe set-up nominal Super Proton Synchrotron Large Hadron Collider Directly Transmitted Interlock Signals SPS Machine Parameters LHC Machine Parameters

  6. Broadcast

  7. Protection Configuration LHC Machine Parameters Broadcast Safe Machine Parameters Super Proton Synchrotron Large Hadron Collider SPS Machine Parameters

  8. Controllers

  9. Two Controllers

  10. Cross-Checking

  11. Dangerous Circumstance = Safe Machine Parameters General Machine Timing Transmission Broadcast Set-up Beam Flag stuck TRUE Energy stuck at 450 GeV parameters used by machine protection system

  12. Cross-Checker Implementation

  13. Cross-Checker (CISC) Record last 10 SMP transmissions For each parameter discrepancy = beam abort Compare with current GMT transmission

  14. Cross-Checker (CISC) One second Record last 10 SMP transmissions For each parameter discrepancy = beam abort Compare with current GMT transmission also checks cable presence & parameter reception rate • GMT candrop a parameter • GMT canrearrange parameter transmission order • GMT cannot change payload of parameter now connected to BIS

  15. Cross-Checker (CISC) Record last 10 SMP transmissions For each parameter discrepancy = beam abort Compare with current GMT transmission

  16. Cross-Checker (CISC) Record last 10 SMP transmissions For each parameter discrepancy = beam abort Compare with current GMT transmission

  17. Cross-Checker (CISC) • GMT drops a parameter • GMT rearranges parameter transmission order Warnings recorded when: Automatic observation by CISC Never observed… • GMT dropsthree consecutive parameters • GMT changes payload Interlock raised when: Interlock through BIS Never observed…

  18. Cross-Checker (CISC) • GMT drops a parameter • GMT rearranges parameter transmission order Warnings recorded when: Automatic observation by CISC Never observed… • GMT dropsthree consecutive parameters • GMT changes payload Interlock raised when: Interlock through BIS Never observed…

  19. Cross-Checker (CISC) 1) Arm loops… 2) Send single bad energy in timing editor… 3) Observe… Does it actually work? • Reactive consolidation / maintenance only • New needs = new requests e.g. LS1 SBF tables SMP hardware project will be closed. • Pre-op / DIAMON / Post-Op now functional • complete logging functional simple format SMP software project ongoing . See J.-C. Garnier up next

  20. fin – thank you!

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