1. FAIR Accelerator Controls Strategy
XXIII PANDA Colaboration Meeting
11. Dez. 2007
U. Krause

2. Accelerator Control Synchronized operation of equipment
Ramp magnets, RF simultaneously
Tracking tolerance ~10 µs max
Pulse-to-pulse switching
Different beams in successive cycles
Specific set data
Accelerator modelling
Equipment: Magnets, RF generators
Each specific ramps
Operators: Handle physical parameter
Beam energy
Extraction time
Tune
...
11 Dec 2007

3. Distributed Decentralized System
databases
application
device
presentation
(no real-time)
equipment
control
(real-time)
communication middleware
Control
object
sub-system
equipm.
modeling
timing:
event
generator
sequence control
timing events
background
services
synchronized
control engine
I/O
stand alone
operator terminals
11 Dec 2007

4. Synchronization: Central Timing
Timing Generator A
Experiment 1
Experiment 2
Timing Generator B
LPC A
LPC B
LPC C
EXP 1
EXP 2
Sequence Control
Timing Generator C
Precision of General Timing: 1 µs (100 ns ?)
Sufficient for nearly all tasks in accelerator controls
Higher precision: Dedicated systems (e.g. BuTiS)
11 Dec 2007

5. Slow Controls Handling valves, pumps, motors, DC power supplies, ...
Not primary focus of accelerator controls
At least at puls-to-pulse switched facilities
GSI accelerator controls, FESA / LSA (CERN)
Widely used in industrial environments
Many commercial products
SCADA-systems
PLCs
11 Dec 2007

6. CERN: UNICOS Statement CERN: CERN develops framework
No off-the-shelf system covers needs of big installations
CERN develops framework
UNICOS: UNified Industrial COntrol System
based on commercial products
SCADA: PVSS
ETM professional control
PLCs: Siemens, Schneider
not closely tight to dedicated systems
to fit well into accelerator control environment
11 Dec 2007

7. Industrial Control Architecture
Industrial Supervision Layer
Interface to operators
(Monitoring & Command emission)
Real time DB & Archiving
Accelerator Presentation Tier
Operator Consoles
Ethernet Network & TCPIP communication services
SCADA Servers
Accelerator Middle Tier
Control Logic Actions
Industrial Control layer
PLC Process Control
PLC Process Control & Field interface
Accelerator Resource Tier
control system connection to the process directly or through field-buses
Industrial Field layer
PLC Field interface
Fieldbus Networks
From CERN presentation (P. Gayet, ICALEPCS 2005)
11 Dec 2007

8. UNICOS Break Down IN UNICOS
I/O Boards
IN UNICOS
Each control module or equipment module is a device
Each device type is an Object Class
Each device is instantiated in the control layer as PLC Object
Equipment modules and Units are embedded in a unique object class : Process Control Object
All PLC Object classes are based on the same model
I/O devices
Field devices
Process Control Objects AI
M value
PID
Equipment module
UNIT
Control
Valve
An Input
position
An Output DI
End switch DO
position
On-Off Valve
Equipment module AI
position AO
Control
Valve DI
End switch DO
On-Off Valve
M value
PID
Equipment module
From CERN presentation (P. Gayet, ICALEPCS 2005)
11 Dec 2007

9. Industrial Supervision Layer Industrial Control Layer
Layers Integration
Industrial Supervision Layer
In the Supervision layer a proxy is associated to each object
This proxy will present the relevant object info to the operator
And allow manual command emission
Object status
Human
Requests
SCADA Object
HMI
Parameters
Manual Request
Information
display
SCADA
Proxy
Process
Industrial Control Layer
Auto. Requests
Object logic
Orders
PLC Object
Object status
Manual Requ.
Parameters
Process Inputs
From CERN presentation (P. Gayet, ICALEPCS 2005)
11 Dec 2007

10. UNICOS Applications Coding Instantiation Automated code generation
PLCs: Skeletons, common modules (interlock, configuration, ...)
GUI library
Produce GUIs by drag-and-drop drawing
Instantiation
Instance Generator
Input: EXCEL spreadsheets
Automated middleware configuration
11 Dec 2007

11. Integration in Accelerator Control
From CERN presentation (P. Gayet, ICALEPCS 2005)
11 Dec 2007

12. FAIR Accelerator Controls
CERN controls components are interesting
Front-End control (equipment side): FESA
Control applications (operator side): LSA
Slow controls: UNICOS
Vacuum
Cryogenics
others
11 Dec 2007