controls global group tasks

A U.S. Department of EnergyOffice of Science LaboratoryOperated by The University of Chicago

Argonne National Laboratory

Office of ScienceU.S. Department of Energy

Controls Global Group Tasks

John CarwardineFeb 8, 2006

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Pioneering Science andTechnology

Office of Science U.S. Department

of Energy

Focus on three areas…

• Develop a reference design and costing for RDR- The high priority activity of GDE in 2006.

• Continue to develop the baseline design

• Pursue key R&D activities- LLRF development at various test stands (TTF, ILCTA, etc)- RF phase / timing distribution- High Availability

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Continue to develop the baseline design and BCD

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Instrumentation & Control outline in BCD

• 11.1 Controls Standard Architecture

• 11.2 Timing System

• 11.3 Diagnostic Interlock Layer

• 11.4 Global Network

• 11.5 Machine Protection

• 11.6 Low level RF

• 11.7 Feedback

• 11.8 Integration with Instrumentation

• 11.9 Machine Detector Interface

• 11.10 Instrumentation – Beam position monitors

• 11.11 Instrumentation – Beam profile monitors (transverse)

• 11.12 Instrumentation – Longitudinal

• 11.13 Instrumentation – other (intensity, loss, ring)

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Control system architecture in BCD…

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Issues arisen from BCD Comments

• Comments received from Toge, Lockyer, Himel

• Communicate to technical system and accelerator area leaders the implications of ATCA and Control System High Availability.

• Change baseline design from VME/VXI to ATCA.

• Address failure modes for the rf phase reference distribution system (phase jumps).

• We need more diagrams to communicate what the control system will look like (being done…)

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Main tasks still to do (BCD)

• To be addressed by BCD section authors…- Update other BCD sections in response to comments.- Expand LLRF and feedback sections.- Respond to comments from Himel, Toge, Lockyer (written)- New summary has been written.- Submit case for ATCA instead of VME/VXI.- Submit updated BCD to CCB before Bangalore.

• To be addressed by the Controls Topic Groups…- Understand requirements from accelerator areas.- Continue to develop control system design details.- Apportion the RF performance requirements across the

subsystems.

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Controls Topic Groups

• CONTROLS INTEGRATION (overall integration)- Carwardine (ANL), Simrock (DESY), Michizono (KEK), Mcbride (FNAL)

• CONTROL SYSTEM ARCHITECTURE- Saunders (ANL), Clausen (DESY), Rehlich (DESY), Votava (FNAL)

Rechenmacher, Pavlicek (FNAL), Furukawa (KEK)

• DATA ACQUISITION / CONTROL- Wendt (FNAL), Votava (FNAL)

• HIGH AVAILABILITY- Larsen (SLAC), Downing (SLAC), Lenkszus (ANL), Saunders (ANL).

• CONTROLS / INSTRUMENTATION INTEGRATION- Wendt (FNAL)

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Controls Topic Groups (2)

• LLRF- Nageitsev (FNAL), Cancelo (FNAL), Carcagno (FNAL), Chase (FNAL), Simrock

(DESY), Michizono (KEK), Lockyer (U.Penn)

• TIMING AND RF PHASE REFERENCE DISTRIBUTION- Lenkszus (ANL), Frisch (SLAC), Pavlicek (FNAL), Matsumoto (KEK)

• MACHINE PROTECTION SYSTEM- Ross (SLAC), Lenkszus (ANL)

• BEAM-BASED FEEDBACK- Burrows (U. Oxford), Carwardine (ANL), Lebrun (FNAL), White (U. Oxford)

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Instrumentation Topic Groups

• BEAM POSITION MONITORS:- Smith (SLAC), Wendt (FNAL), Baboi (DESY)

•BEAM PROFILE MONITORS - LASERWIRE:

- Blair (RHUL), Urakawa (KEK)

• BEAM INTENSITY MONITORS, BEAM LOSS MONITORS:- TBA

• BUNCH LENGTH MONITORS:- Ross (SLAC)

• SPECIAL INSTRUMENTATION:- Ross (SLAC), KEK physicist

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Pursue key R&D activities

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LLRF development

• FNAL, DESY, KEK already actively pursuing this with regard to test stands (ILCTA, TTF, ATF-2, etc)

• [Feb 9-10th workshop]

• Should determine how we can best integrate the test stands into other controls related development activities.

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Timing / RF phase reference distribution

Various issues discussed at Jan 19-20 meeting, including…

• Evaluate and demonstrate various options- Trench test of fiber system (vs coil in oven)- Sector test – the copper part (local distribution).- Two-channel receiver comparator scheme- Low-cost way of building a vcxo with sufficient performance?- “To chop or not to chop”

• Different schemes to meet the bunch compressor requirements.

• Failure modes and effects analysis.

• Pursue HOM phase detector scheme.

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Feedback development issues

Various issues discussed at Jan 19-20 meeting, including…

• How do the beam-based feedback systems deal with exceptions?- Startup, beam loss, MPS trip, etc- Detecting and handing bad sensors or actuators.

• Integrated simulation of LLRF and beam-based feedback.• Interplay between the various feedbacks and feed-forwards?

• How does beam-based feedback help the rf specs?

• How many intra-train feedbacks do we have, and how many pulses do they collectively take to converge?

• Should beam trajectory feedback be several individual loops or a single global system?

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High Availability control system demo

• R&D Roadmap (starting point)

- Claude’s proposal- ATCA + EPICS iocCore + shelf manager + ICE middleware- Claude to set up discussion with interested parties.- Develop an AMC module to plug in / integrate with Claude’s ATCA

crate.

- How do we utilize the test stands (ILCTA, ATF, TTF)? Feb 9/10 Fermilab mtg

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Develop a reference design and costing for RDR

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RDR Design Matrix

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“Charges for RDR Leaders” memo of 1/12/06

[see Ray Larsen’s table]

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Guidance for costing exercise

• High level guidance- Expected margin of error for control system costing is +/-30%.- Focus first on overall ILC cost drivers first.- DCB looking for resolution of a few x 0.1% (~$50M).- Priority should be on a top-down rather than bottom-up costing.- Use what has already been done for NLC, TTR, USLCTOS, etc- The RDR is not a detailed design document.- Need to include ‘everything’

• We need to know what to cost and how many…

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Baseline is a High Availability control system…

• Front-end hardware- Switch from VME to ATCA in baseline for RDR.- Need to know what needs hardware redundancy at front-end.

• Servers etc- Need to budget for HA relational databases, software, central

computing, data archivers, etc- Central computing + archiving + data backups, etc is part of

controls domain. MIS computing is not.

• Control system- We will provide infrastructure for implementing HA functionality.- We have to make the middleware reliable (especially).- Cost will be in implementing the recovery policies.- To what level do we go with HA software in the various layers?

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Main tasks to do (RDR and costing)

• Develop WBS structure for Controls and LLRF.

• Collect baseline info from accelerator areas.

• Develop Control System and LLRF block diagrams.

• Generate Excel spreadsheet of line items for costing exercise.

• Meet RDR deliverables, as listed in the “Charge to RDR Leaders” memo.

• Prepare for LLRF and Controls reviews in April/May.

• Issue: an apparent lack of availability of people to work on RDR.

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Immediate tasks

• Continue to develop the integrated control system diagram.

• Develop an RF/LLRF block diagram of each accelerator area (linac is the most important to do first)- How many I/O + DAQ channels.- How many relay racks.- Cable plant.

• Develop a controls block diagram for each accelerator area- How many I/O + DAQ channels.- How many relay racks.- Show interfaces to LLRF, Instrumentation, Timing, MPS, etc- Cable plant.

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Control System WBS outline

• Global Control System - <List of global systems>

- <Control system line items>

• <Accelerator Areas>- <Technical Systems>

- <Control System line items>- RF System

- <LLRF line items>- <Control System line items>

• We need information from the area and technical leaders to complete the Controls WBS for the accelerator areas.

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Control System WBS (Global level)

• Global level (starting point)- Central computing- Networking infrastructure- Timing system / RF phase reference.- Central MPS- Personnel Protection System- Control Room(s)- Data archiving- Control System Software development- Installation / commissioning

• Aim to develop a structure with nodes that can be costed and that can be cloned as needed.

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Requirements gathering exercise

• Plan:- Appoint two points of contact (POC) for each of the six

accelerator areas: one for LLRF; one for the Control System.- Appoint one POC for each of the five global groups.

• Goals:- Get a broad-brush understanding of the scope of the control

system requirements to be able to cost the control system.- Create building-blocks for the RDR costing exercise.- Help establish treaty points.

• Initial deliverables from each Point of Contact- Block diagram showing functions and basic geographic layout.- Estimate of number of I/O channels and data rates.

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Proposal for accelerator area POCs

E- source E+ source Damping Ring

RTML Linac BDS

LLRF

Controls

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Integrated control system block diagrams

• We should develop a hierarchy of block diagrams for the integrated control system- Integrated control system functional diagram (Ned’s diagram)- Block diagram of each global subsystem

- Timing, MPS, archiving, central control system, etc, etc- Block diagram of each accelerator area control system

- E-, E+, DR, RTML, Linac, BDS- Block diagram of each accelerator area LLRF system

- E-, E+, DR, RTML, Linac, BDS- Beam-based feedback.- Hardware/geographic and software centric views.

• Each block becomes a node on the WBS.

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ICS Functional Diagram“Ned’s Diagram” (2/1/06 revision)

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ICS Functional Diagram (detail)

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Cryo section block diagram

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Summary: RDR action items

• Identify Points of Contact for accelerators and global groups

• POCs develop LLRF and controls block diagrams for each accelerator area.

• Develop the controls story for Bangalore.

• Develop a costable WBS for Controls and LLRF.

• Define costing procedures.

• Prepare for first review in April/May timeframe.

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We need a pitch for Bangalore…

• Strategy for completing the RDR task- Management, technical, etc

• How we see things coming together.

• What we need from the area, technical, and global groups.

• R&D issues for controls and LLRF.

controls global group tasks

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