Integration with the SLC Control System
LCLS Facility Advisory Committee
Oct 27, 2005
Introduction
Demo
SLC-Aware IOC
Plans for Next 12 Months
SLC Apps have a separate presentation
Oct 27, 2005
Integration with the SLC Control System
1
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)
CA over Ethernet
(EPICS Protocol)
MPG
micro
CAMAC
I/O
P Micro
E
N emulator I/OC
V
E (SLC-aware)
G
T
Micro
emulator
I/OC
(SLC-aware)
Fast Feedback
RF reference clock
Oct 27, 2005
Integration with the SLC Control System
2
Stephanie Allison
saa@slac.stanford.edu
Oct 27, 2005
Integration with the SLC Control System
3
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)
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
Oct 27, 2005
Integration with the SLC Control System
4
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
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
Oct 27, 2005
Integration with the SLC Control System
5
Stephanie Allison
saa@slac.stanford.edu
SLC-Aware IOC Issues
Endian – VMS to/from any possible EPICS
platform (no 64 bit)
Memory – CPUs that support SLC-aware IOC
need memory
Keeping the EPICS and SLC database in-sync – 2
master problem (Magnet Control)
Will need to increase max # of “micros” in the SLC
control system
Decision to use the PEP proxy so LCLS SLC traffic
will go through the PEP network and be routed to
the LCLS network
Oct 27, 2005
Integration with the SLC Control System
6
Stephanie Allison
saa@slac.stanford.edu
SLC IOC Progress Since Apr 2005
Team:
LCLS Controls: Stephanie Allison, Kristi Luchini, Consultants
ESD Software: Diane Farley, Debbie Rogind, Consultants
Weekly meetings and working web pages
Basic Services:
Executive, Message, Database, CMLOG – Done except for message
passing from RTEMS IOCs to CMLOG and thread priorities
Async Utilities and Periodic “Micro” Health Update – Done
Tested on Production Network and Proxy, RTEMS testing done
Application Services:
Device Control and Readback (Magnet) – Reqts and design done,
implementation in progress
PNET Timing Diagnostics – Removed
Gated ADC Acquisition (BPM) – Done
Changes to VMS Programs – not needed
Record Naming Conventions – Done
PNET VME Module
Implementation done, testing in-progress
Oct 27, 2005
Integration with the SLC Control System
7
Stephanie Allison
saa@slac.stanford.edu
SLC-Aware IOC Plans for 2006
Implementation:
Device Control and Readback – Nov 2005 (Debbie)
Finish CMLOG interface – Jan 2006 (Stephanie)
Integration testing when the following are ready:
With BPMs and other GADCs (Till Straumann, Doug Murray)
With MPG/PNET/EVG/EVR (Dayle Kotturi)
With Power Supplies (Kristi Luchini)
Add router between PEP and LCLS network – Aug 2006
Ready for first beam in Injector – Nov 2006
Update specifications
Some of the EPICS interface developed for the SLC-aware
IOC will also be used for fast feedback
SLC-aware basic services being used for another project
(micro upgrade to RTEMS or Linux PCs)
Oct 27, 2005
Integration with the SLC Control System
8
Stephanie Allison
saa@slac.stanford.edu