Transcript The European Spallation Source Control System

The European Spallation Source
Control System
Garry Trahern,
Head of Integrated Control Systems
The ESS site is in Sweden !
Sweden, Denmark & Norway cover 50% of cost
Lund!
The other 14 member states covers the rest,
with the European Investment Bank
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Evolution of neutron sources
Effective thermal neutron flux n/cm2-s
ESS
1020
SNS
ISIS
MTR
1015
NRX
HFBR
X-10
1010
ILL
HFIR
NRU
J-PARC
ZINP-P/ IPNS
WNR
KENS
FRM-II
SINQ
ZINP-P
CP-2
CP-1
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1930
Berkeley 37-inch cyclotron
350 mCi
Ra-Be source
Steady State Sources
Pulsed Sources
Chadwick
1940
1950
1960
1970
1980
1990
2000
2010
2020
(Updated from Neutron Scattering, K. Skold and D. L. Price, eds., Academic Press, 1986)
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Neutrons in 2019 !
5 MW
beam power
2.5 GeV
protons (H+)
2.9 ms
pulses
14 Hz
rep rate
50 mA
pulse current
704 MHz
RF frequency
< 1 W/m
beam losses
7.5 MW
upgradability?
No H- injection,
No accumulator/compressor ring !
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Green field site
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Scope of integrated control system
Everything from source to target,
cryogenics & conventional facilities
•Good for long-term maintainability
•Get everybody on board at the
beginning (when it is not ‘so hard’)
•Organizational challenges are faced
head-on
Ion source
Instruments
Accelerator
Target station
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ESS Master Programme Schedule
ESS Program Phases,
Gates and Milestones
Program level
2009
2010
PG
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Program
Initiation
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
PG
4
PG
3
losure
Program Set-up
Delivery of Contsruction phase
First Neutrons
to Instruments
Pre-construction phase
Full beam power
on target
Construction
Technical Design Report
Operations
Pre Construction Report
Accelerator
Design Update
Installation
Prepare to Build
Construction
Target
Design Update
Prepare to Build
Installation
Construction
Instruments
Conventional Facilities
Concepual Design
#7
List
Design Update
Site preparation
Design and Manufacturing 22 instruments
Installation 1-22
Ground Break
First Building
Construction
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Current activities
Prepare-to-Build (P2B) provides 1) Prototyping & 2) Engineering
Design Reports, in smooth transition from design to construction.
P2B projects
Design Updates
2011
2012
Construction projects
2013
2014
2015
International
convention signed
TDRs with Cost & Schedule
P2B
DU
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Const. Const.
P2B
DU
P2B
P2B
2016
2017
2018
2019
First
neutrons
Cryomodule
production starts
First
protons
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Projects to model on in terms of controls
• SNS
• Similar in functionality to ESS
• Real-life experience from SNS control system
• ITER
• multi-lab and multi-nation project just like the ESS
• A very large EPICS installation
• ITER timeframe
- First subsystems integrated: 2013
- Commissioning: 2018
- Operation: 2019
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Some architectural, design and
organizational decisions
• ESS will use the EPICS control system.
• Linux will be the operating system in the ESS controls service
tier.
• Provide a standardized “Control Box” platform to ESS partner
institutions, with first prototype delivery in the design phase.
• Release Control Box software and hardware in
(approximately) yearly cycles
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Control System Architecture – Control
Box

Control Box
 Provide a standardized solution
before teams develop their own
 A cornerstone in the 3 year
design update phase
Central Services
Gatway
Model
Central Room
Operator’s workstation
Archive
Other networks

Benefits
 Encourage consistency between
sub-systems




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IP over Ethernet
including target, experimental
stations, cryogenics & CF
Enable factory acceptance
testing of subsystems through
control system,
Validate technology decisions,
Minimize throw-away hardware
and software development
Garry Trahern
Power Supplies Sector A
Control Box
RF Sector B
Control Box
Equipment Interface – Control Boxes
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Ethernet/IP
Ethernet Switch
Responsibility of the ESS integrators
Input Output Controller (IOC)
Channel Access
EPICS IOC
Device
Support
Device
Support
Device
Support
analog inputs
Control Box consists of
• Hardware
• Software (IOC, OPI)
• Procedures
Responsibility of the subsystem
developers/integrators
Other
subsystems,
central
services,
control room,
etc.
Control Box
A/D module
Ethernet Switch
PROFINET
PLC
PLC
PLC
analog/digital I/O
TCP/IP, UDP/IP
Ethernet Switch
Intelligent Controller
Intelligent Controller
Intelligent Controller
analog/digital I/O
Provides a clear split of responsibility among
• Control system developers
• Subsystem integrators
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Beam line elements database (BLED)
• Automatically generate as much of the control system's components as
possible
• Principal input: a high-level description of the system (e.g., the
accelerator's lattice)
 Use of system engineering tools
and model-driven architecture
 The database(s) contain:



inventory information
(equipment and its location,
reference to manuals, reference
to purchasing information, …)
cabling, connectivity and
topology information
control system process
variables, processing rules, …
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Hardware platform selection
• How to select the hardware platform, main criteria
• Usability
• Longevity
• NOT “top performance” or coolness factor
Acceptance by majority in the industry.
• Selection process:
• Stakeholders: controls, beam instrumentation, RF, …
• First prototype decision on October 3: cPCI
• Decision revised through prototyping and comparing notes
• Early prototype – learn from mistakes
• Different groups – different experiences
• Objective approach: unified table for all platforms, arguments
agreed upon by all groups
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Current status
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Development environment
• ITER’s CODAC is taken as basis
• 8 service servers hosting bug tracking, version control,
continuous integration …
• Scientific Linux user development virtual machines
• Cross platform: Windows, Mac OS, Linux
Timing, MPS: gathering requirements
• Single source clock will be used
Naming convention finalized
End of 2012: First major deliverables
• Technical Design Report
• Vertical prototype with Control Box (and manual)
… complement each other.
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Summary
The European Spallation Source will be built in Lund.
• The design of the CS should ensure a long life with many
upgrades.
• The accelerator design, prototyping & construction is being
performed in a collaboration.
Use code and best practices from similar projects as much as
possible
• Collaboration with SNS and ITER
Provide a working control system from the onset
• Control Box, released in yearly cycles
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