1. Control System Interfaces
Kay Rehlich
XFEL Collaboration Meeting April 2013

2. XFEL Interfaces Overview
TINE Client
C and Java
Karabo
C++ Ti k D
DOOCS
C++
Java
Server D Ti k E Ta
DAQ
TINE
Server
Karabo
EPICS
TANGO Ti k E Ta
DAQ
DOOCS D
Undulator
Beckhoff
XFEL Collaboration Meeting April Kay Rehlich, DESY

3. Example: TINE - DOOCS Interface
Java e.g. jddd
TINE
Server Ti D
DAQ
Get(adr, dataIn, dataOut)
Standard
Application Programming Interface
API D Ti k E Ta
Native libraries of the control systems
jdoocs
Equipment Name Server
ENS
Adr 
 protocol, server adr
Data transformation to uniform format
XFEL Collaboration Meeting April Kay Rehlich, DESY

4. TINE - DOOCS Interface: Data Types
In total ~ 90 data types
75 % can be translated TINE  DOOCS
25 % are special types e.g. for archiving
A data type can hold a single bit … up to 32MB (image)
Data types can be quite complex:
Archive types, images, …
The API provides many functions like:
get_float_2D ( row, col )  has to be implemented for all types
XFEL Collaboration Meeting April Kay Rehlich, DESY

5. Special Features (1): Addressing with Wild-cards
BPM simulation server
ADR = XFEL.DIAG/BPM/*/Y
All controls interfaces should support this,
If not it has to be simulated
XFEL Collaboration Meeting April Kay Rehlich, DESY

6. Special Features (2): Addressing with System Mask
All e- beam lines
All sections belonging to SASE2 e- beam lines
System Mask:
Inj 2
SASE xx
XFEL Collaboration Meeting April Kay Rehlich, DESY

7. DOOCS: facility/device/location/property
Address Conventions
DOOCS: facility/device/location/property
TINE: context/server/device/property
TANGO: domain/family/member/property
EPICS: flat, no standard definition
Requires entries in the DOOCS name server
karabo: device(=facility/device/location)/property
DOOCS addresses require static entry in karabo-DB
XFEL Collaboration Meeting April Kay Rehlich, DESY

8. Undulator Interface per Section
Control System
Interface
Dynamic configuration of locations and properties
DOOCS Undulator Server D
Request Port:
List of ports r 1 n
Publisher Port:
Sends changed data
0MQ Gateway 1 n
UND 1
UND n
. . .
Beckhoff Controller
UND 1
UND n
. . . M M M M
Impl. By Andreas Beckmann
XFEL Collaboration Meeting April Kay Rehlich, DESY

9. First prototypes demonstrated on both control systems
DOOCS  karabo Demo
karabo GUI
DOOCS ddd
DOOCS
Camera
Server
Karabo
Camera
Server
First prototypes demonstrated on both control systems
JAVA interface is next step
XFEL Collaboration Meeting April Kay Rehlich, DESY