Controls Overview April 27, 2005

1
Controls OverviewApril 27, 2005

• Outline
• Goals
• Status update
• Resources
• Design Slides for Global Systems
• Task descriptions
• Next 6 months
• Conclusions
• Note As this is being recorded please add it
  is my impression and we expect wherever
  appropriate.

2
LCLS Control System Goals

• Provide a fully integrated control system to
  support the construction, test, installation,
  integration, operation and automation of the LCLS
  Accelerator
• Standardize on all devices and components across
  all subsystems.
• Identify all data either by pulse id, beam pulse
  related time stamp, or 500 msec rough time stamp.
• Full integration with the SLC timing, use of
  LCLS data in SLC high level applications, and use
  of SLC data in LCL
• Provide an upgrade path for the SLC

3
Update May 2004 April 2005 (1)

• 3 month continuing resolution
• WBS reorganized to move all design work into
  1.1.3.5 under direction of the control group
• Acquire personnel
• 8 project engineers Koturri, Lucchini, Allison,
  Straumann, Murray, Fairley, Rogind, (offers being
  made to junior engineer, jobs open for junior
  proj. eng)
• 1 low level programmer (offer being made to
  junior engineer)
• 2 EE/ board designers (support from ESD,
  evaluating existing designs, interviewing
• Steve Lewis on controls at LLNL
• Conventional Facilities, Wiring, Racks, and
  Power Distribution Ortega (lead), ESD support,
  need to hire

4
Update May 2004 April 2005 (2)

• Facility Controls, XRay Transport are integrated
  into control design (details remain)
• Rack Layout, Tray Design, and wiring penetrations
  for Injector, L01 through BC1. LTU is 50
  complete.
• Prototypes in test
• PNet hardware design complete, driver
  functional, tests needed
• Timing hardware from SLS being put into test
• Power Supply hardware from SLS in test for
  stability and precision
• Video cameras in test
• SLC-Aware IOC is 70 complete.

5
Update May 2004 April 2005 (3)

• Design efforts ready for prototyping LLRF and
  BPM
• Prototypes needed
• 120 Hz fast feedback
• position controllers
• Machine Protection

6
Personnel Resources
2004 2.42 .56 .07 1.94 .42 .81
2005 10.37 3.44 .60 1.39 .86 10.18
2006 8.12 2.66 2.20 .32 .31 10.29
2007 6.07 1.90 4.63 .51 .72 6.32
2008 3.26 .77 .62 .10 .05 6.56
Total 30.24 9.33 8.12 4.26 2.37 34.17
Ctl. Elec. Engineer Ctl. Sr. Elec. Tech. Ctl.
Elec Tech. Pwr. Elec. Engineer Pwr. Sr. Elec.
Tech. Control Prog.
Ramp up plan offset 3 months. We are borrowing
most of our hardware support. We need some LCLS
in-house support
Will be reworked after hardware designs are
reviewed and finalized.
7
Integration with the SLC Control System
EPICS W/S Distributed Applications
SLC Alpha All High Level Apps
EPICS W/S Distributed Applications
EPICS W/S Distributed Applications
Xterm
Xterm
Xterm
EPICS W/S Distributed Applications
Xterm
EPICS WS Distributed High Level Applications
SLC Net (Data Communication)
KISNet (fast closed loop control data)
PNet (Pulse ID / User ID)
MPG
Ethernet (EPICS Protocol)
micro
I/OC (SLC-aware)
EVG
Micro emulator
Camac I/O
RF reference clock
8
SLC-Aware IOC
9
System Design
EPICS W/S Distributed Applications
EPICS W/S Distributed Applications
SLC Alpha Apps
EPICS W/S Distributed Applications
Xterm
Xterm
EPICS W/S Distributed Applications
Xterm
EPICS WS Distributed High Level Applications
Xterm
Fast Feedback over Ethernet?
SLC-Net over Ethernet
Channel Access
Vacuum Ctrl
E VG
LLRF
EVR
Diag
EVR
EVR
Pwr Supply Ctrl
C P U
C P U
C P U
HPRF I/O Boards
C P U
IOC
IOC
IOC
16 triggers
16 triggers
Single Bunch Beam Dumper
Drive Laser Off
Machine Protection
Beam Code EPICS Time EPICS Events
10
LCLS Project Engineering Tasks

• 1 RF Control - Koturri
• 3 Diagnostics Straumann, Murray, tbd
• Toroids Faraday Cups, Beam Stops, Profile
  Monitors Video Devices, Wire, Scanners, Bunch
  Length Monitors E/O Diagnostics, Beam Position
  Monitors, Collimators, All other stops
• Gun Laser and Drive Control Contract Out
• 1 Vacuum Steve Lewis supporting the design now
  / Job Ad Open
• 1 Magnet Power Supply Control IOC and software -
  Luchini
• 1 Beam Containment / Personnel Protection /
  Machine Protection - Chevstov
• 1 Low Level Engineer - Norum
• 2 High Level Application Engineers Fairley,
  Rogind
• 1 RDB Manager job ad placed
• 1 System manager need to place job ad
• Resolve/Formalize Group Leader currently
  co-managed Bob and Patrick

11
LCLS Software Tasks Purchase/Steal/Develop

• SLC-aware IOC 70 complete. Expected completion
  July 1, 2005.
• Machine Protection / Mitigation (look at SNS and
  JLAB)
• Master pattern generator (look at PSI/Diamond)
  being set up
• Fast Feedback Communication need to prototype
• High Level Applications (Matlab or XAL)
• Correlation Plots (look at JLab)
• Fast Feedback Loops
• Emittance reconstruction from wire scans and
  profile monitors
• Profile monitor image analysis for slice
  emittance with the transverse cavity
• Beam Steering and online orbit modeling
• Beam Steering scans to emittance reconstruction
  from wire scans and profile monitors

12
LCLS Software Tasks Purchase/Steal/Develop

• Data Archiving to support all phases of the
  project (SNS)
• Operator Display Tools / Synoptic, Plots,
  Waveform, Image (EDM)
• Alarm Management (ALH, CMLOG)
• Electronic Log (DESY, JLAB)
• High Level Application Support Matlab, XAL,
  Python
• Control System Configuration Tools (VDCT, RDB)
• Relational Database Management in all project
  aspects (Based on SNS, PEP)
• Naming Standard (PEP)

13
LCLS Hardware Tasks Purchase/Steal/Develop (1)

• Global
• New timing boards Master Pattern Generator and
  Event Receiver Boards (PSI,DIAMOND)
• Machine Protection System (SNS/JLAB) needs to
  be evaluated
• RF Control In-house analog with COTS ADCs and
  DACs
• Diagnostics
• Toroids Faraday Cups
• Beam Stops
• Profile Monitors Video Devices evaluating
  commercial cameras
• Wire Scanners
• Bunch Length Monitors E/O Diagnostics
• Beam Position Monitors in-house analog with
  COTS ADCs and DACs
• Collimators
• All other stops

14
LCLS Hardware Tasks Purchase/Steal/Develop (2)

• Gun Laser and Drive Control Integrate Thales
  Controls either device layer or Labview
• Vacuum Standards being finalized
• Magnet Power Supply Controllers (PSI) in test
  at SLAC
• Beam Containment / Personnel Protection
  through first review

15
Next 6 months

• Finish hiring
• hardware support EEs and Techs
• Complete hiring actions on project engineers and
  programmers.
• Acquire RDB support.
• Complete detailed designs per subsystem and have
  them reviewed revamp costs by the end of this
  FY.
• Complete evaluation/test of PNet, Timing, LLRF,
  PS, MPS, PPS, and BPM
• Complete the SLC-Aware IOC
• Integrate Laser Control

16
Conclusions

• Control engineers are in place for most major
  subsystems.
• The WBS has been reorganized to move all of the
  design activities into global controls under
  1.1.3.5. Signature authority for all x.x.2 level
  WBS is shared.
• The SLC-aware IOC and SLC to EPICS timing issues
  are well on the way to being resolved.
• Hardware components have been identified for most
  of the risky areas. MPS and fast feedback need
  attention. PPS needs to complete the citizen
  review.
• By the end of this year, hardware designs should
  be proven as prototypes and the schedule and
  budget revamped to reflect the final design
  decisions.

17
Timing
Nsec resolution on the timing gates produced from
the Event Rcvr 20 psec jitter pulse to
pulse Event generator passes along beam code data
from SLC Event generator sends events to
receivers including 360 Hz, 120 Hz, 10 Hz and 1
Hz fiducials last beam pulse OK Machine
mode EPICS time stamp Event receivers produce to
the IOC interrupts on events data from the
event generator in registers 16 triggers with
configurable delay and width
476 MHz RF Reference
SLC micro
Master Pattern Generator 128 bit beam code _at_
360 Hz
FIDO
119 MHz w/ 360 Hz fiducial
Vacuum Ctrl
E VG
LLRF
EVR
Diag
EVR
EVR
Power Supply Ctrl
C P U
C P U
C P U
HPRF I/O Boards
C P U
IOC
IOC
IOC
16 triggers
16 triggers
Single Bunch Beam Dumper
Drive Laser Off
Machine Protection
Beam Code EPICS Time EPICS Events
18
SLC Net Micro Communication
Provides data to SLC Applications from
EPICS Operates at 10 Hz (not beam
synched) Requires significant development in the
IOC to emulate SLC micro in the IOC On an
application by application basis we will evaluate
what functions to provide
SLC Alpha Apps
Xterm
Xterm
Xterm
Xterm
SLC-Net over Ethernet
Vacuum Ctrl
E VG
LLRF
EVR
Diag
EVR
EVR
Pwr Supply Ctrl
C P U
C P U
C P U
HPRF I/O Boards
C P U
IOC
IOC
IOC
19
Channel Access
EPICS W/S Distributed Applications
EPICS W/S Distributed Applications
SLC Alpha Apps
EPICS W/S Distributed Applications
Xterm
Xterm
EPICS W/S Distributed Applications
Xterm
EPICS WS Distributed High Level Applications
Xterm
Channel Access
Vacuum Ctrl
E VG
LLRF
EVR
Diag
EVR
EVR
Power Supply Ctrl
C P U
C P U
C P U
HPRF I/O Boards
C P U
IOC
IOC
IOC
A channel access server in SLC provides data from
existing SLC micros to EPICS applications All
IOCs have both a channel access server to allow
access and a client to have access Channel access
provides read/write by all clients to all data
with a server. All EPICS high level applications
are channel access clients that may or may not
have a server.
20
Fast Feedback
Fast feedback is required to run at 120 Hz Values
will be transmitted from RF and selected
diagnostics to Power Supply and RF IOCs The
communication needs to be reliable, verifiable,
and have a well thought out degradation The
entire time budget to read, transmit, commute,
control, and settle is 8.3 msec First estimates
are that the control system can use 2 msecs to
transmit and receive the data Can this be done
over a common Ethernet with adequate bandwidth
or is a dedicated one needed?
Fast Feedback over Ethernet?
Vacuum Ctrl
E VG
LLRF
EVR
Diag
EVR
EVR
Power Supply Ctrl
C P U
C P U
C P U
HPRF I/O Boards
C P U
IOC
IOC
IOC
21
Machine Protection
Machine protection is used here to define faults
requiring global mitigation Response time is
under 8 msec There are two mitigation
devices Single Beam Dumper - which prohibits
the beam from entering the undulator Drive Laser
Off which prohibits beam from entering the
cavity Action must also be taken to reduce the
repetition rate of the beam This new design is
required to interrupt the beam before the next
beam pulse.
Vacuum Ctrl
E VG
LLRF
EVR
Diag
EVR
EVR
Par Supply Ctrl
C P U
C P U
C P U
HPRF I/O Boards
C P U
IOC
IOC
IOC
Single Beam Dumper
Drive Laser Off
Machine Protection