Integration with the SLC Control System
LCLS Facility Advisory Committee
April 7, 2005
Introduction
PNET Receiver VME Module
SLC-Aware IOC
Existing VMS SLC Applications
Plans for Next 12 Months
April 7, 2005
Integration with the SLC Control System
Stephanie Allison
saa@slac.stanford.edu
Integration with the SLC Control System
SLC
Alpha
All High
Level CAS
Apps
Xterm
Xterm
Xterm
Xterm
CA Gateway
EPICS
EPICS
EPICS
W/S
EPICSWS
W/S
EPICS
W/S
Distributed
W/S
Distributed
Distributed
Distributed
Applications
Distributed
Applications
High Level
Applications
Applications
Applications
SLC Net over Ethernet (Data Transfer)
PNet (Pulse ID / User ID)
MPG
micro
CAMAC
I/O
CA over Ethernet
(EPICS Protocol)
P Micro
E
N emulator I/OC
V
E (SLC-aware)
G
T
Micro
emulator
I/OC
(SLC-aware)
Fast Feedback
RF reference clock
April 7, 2005
Integration with the SLC Control System
Stephanie Allison
saa@slac.stanford.edu
Introduction: PNET Receiver Module
Nsec resolution on the timing gates produced from the Event Receiver
476 MHz RF 50 psec jitter pulse to pulse
PNET module gets beam code data from Master Pattern Generator
Reference
Beam code data transferred to Event Generator
Event generator sends events to receivers including:
360 Hz, 120 Hz, 10 Hz and 1 Hz fiducials
SLC
MPG
last beam pulse OK
micro
Machine mode
FIDO
EPICS time stamp
Event receivers produce to the IOC
119 MHz w/
interrupts on events
360 Hz fiducial
data from the event generator in registers
128 bit beam
16 triggers with configurable delay and width
code
@ 360 Hz
IOC
C P
E E
P N
V V
U E
G R
T
L
L
R
F
IOC
16 triggers
Drive
Laser
Off
C
P E
U V
R
IOC
Diag
C
P
U
E Power
V Supply
R Ctrl
16 triggers
Machine Protection
Beam Code + EPICS Time + EPICS Events
April 7, 2005
Integration with the SLC Control System
Stephanie Allison
saa@slac.stanford.edu
C
P Vacuum
U
Ctrl
PNET Receiver Module
Progress Since Oct 2004
All boards built - 1 production, 2 spares
LCLS (Dayle Kotturi) tested board with
minimal driver software - no problems found
PNET receiver SW requirements done
Prototyping in-progress
EPICS device support design in-progress
April 7, 2005
Integration with the SLC Control System
Stephanie Allison
saa@slac.stanford.edu
Introduction: SLC-Aware IOC
Provides data to SLC Apps from EPICS on demand and
periodically
SLC
Alpha
Apps
Performs requests by SLC Apps by updating EPICS
Xterm
Xterm
Xterm
Xterm
Messages over Ethernet no greater than 10 Hz
Requires significant development in the IOC to emulate SLC
“micro” in the IOC
Used by non-LCLS projects too
SLC-Net over Ethernet
IOC
C
P
U
HPRF
E E
I/O
V V LLRF
Boards
G R
IOC
April 7, 2005
Integration with the SLC Control System
C
P
U
E
V
R
Diag
IOC
C
P
U
E Pwr
V Supply
R Ctrl
Stephanie Allison
saa@slac.stanford.edu
C
P Vacuum
U Ctrl
April 7, 2005
Integration with the SLC Control System
Stephanie Allison
saa@slac.stanford.edu
SLC IOC – What It Will Do
Receive SLC messages and act on them in the same way
as existing SLC micros for:
BPM-Like Data Acquisition (Gated ADCs) – beam synchronous
Magnet-Like Control and Readback (All Controlled Devices)
PNET Timing Diagnostics
Maintain its part of the VMS SLC database:
Receive the entire SLC database at initialization time
Receive new setpoints at any time from the Alpha
Send readbacks back to the Alpha on request and periodically
Send setpoint changes made by external EPICS applications to the
Alpha
Goal – same amount of network traffic as SLC micros
April 7, 2005
Integration with the SLC Control System
Stephanie Allison
saa@slac.stanford.edu
SLC IOC – What It Won’t Do
MPS
BITBUS Power Supply Control
KISNET Communication
Micro-to-Micro Communication via Alpha
SLC-style Analog Signal Monitoring
SLC-style Digital Input/Output
SLC-style Error Logging (use CMLOG instead)
SLC-style Klystron Interface
SLC-style Video Interface
SLC-style Timing Interface (except PNET diagnostics)
Direct Hardware Access (and no support for “virtual CAMAC” commands)
Debugging from VMS
SLC-Style Fast Feedback Interface
Keep static data in the EPICS and SLC database up-to-date
April 7, 2005
Integration with the SLC Control System
Stephanie Allison
saa@slac.stanford.edu
SLC-Aware IOC Issues
Piece-Meal functional requirements – big picture not always clear
Endian – VMS to/from any possible EPICS platform (no 64 bit)
Memory – CPUs that support SLC-aware IOC need memory
Restart SLC tasks without restarting the IOC
Detail diagnostics needed via the IOC shell, a subset via CA
Keeping the EPICS and SLC database in-sync – 2 master problem
Particularly for Magnet Control
May need to increase max # of “micros” in the SLC control system
May need a second proxy in the SLC production control system
Magnet/BPM applications slow in developing
April 7, 2005
Integration with the SLC Control System
Stephanie Allison
saa@slac.stanford.edu
SLC IOC Progress Since Oct 2004
Team:
LCLS Controls: Stephanie Allison, Kristi Luchini, Consultants
ESD Software: Diane Farley, Debbie Rogind, Ron MacKenzie, Consultants
Weekly meetings and working web pages
Coding standards implemented and development environment created
Basic Services:
Requirements done and reviewed
Designs done and reviewed
Executive, Message, Database, CMLOG – Done except for RTEMS testing and
cleanup, identifying some new requirements (2 full-time)
Async Utilities and Periodic “Micro” Health Update – implementation in-progress (1
full-time)
Changes to VMS programs done
Application Services:
Device Control and Readback (Magnet) – Reqts in-progress (1 part-time)
PNET Timing Diagnostics – Reqts in-progress (1 part-time)
Gated ADC Acquisition (BPM) – no progress
Changes to VMS Programs – not yet defined
Record Naming Conventions – first draft done
April 7, 2005
Integration with the SLC Control System
Stephanie Allison
saa@slac.stanford.edu
Existing VMS SLC Applications
Changes/Additions
SLC database work to define all devices on each
SLC IOC, SCP panels, configuration files
MPG timing pattern generation
Tool to generate consistent EPICS and SLC
databases
Minor changes to VMS applications identified for
SLC IOC magnet and BPM jobs (replace “virtual”
CAMAC commands)
Add LCLS modelling
Other work TBD
April 7, 2005
Integration with the SLC Control System
Stephanie Allison
saa@slac.stanford.edu
PNET Receiver Plans for 2005
Design Review – April
Implementation – June
Integrate with EVG/EVR – After June
Test using SLC-Aware PNET diagnostics - Oct
April 7, 2005
Integration with the SLC Control System
Stephanie Allison
saa@slac.stanford.edu
SLC-Aware IOC Plans for 2005
Functional Requirements Reviews:
Device Control and Readback (Magnet Job) – April
PNET Timing Diags – April
Gated ADC Acq (BPM Job) – June
Design Reviews:
Device Control and Readback (Magnet Job) – May
PNET Timing Diags – Late April
Gated ADC Acq (BPM Job) – July
Implementation:
Basic services (except RTEMS testing) – Mid-April
Device Control and Readback – June
PNET Timing Diags – June
Gated ADC Acq (BPM Job) – Aug
Fully operational prototype by Oct 2005
Ready for first beam in LINAC by May 2007
April 7, 2005
Integration with the SLC Control System
Stephanie Allison
saa@slac.stanford.edu