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Performance of the Control System. C.H. Wang Control Group 2007.5.10. Outline. System Overview System Performance Computer&Network Oracle Database PS Control System Ramping Problems Improvement Summary. VME IOC. CABLE. Control System Overview. Public Network. Firwall.

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performance of the control system

Performance of the Control System

C.H. Wang

Control Group

2007.5.10

IMAC 2007.5.10

outline
Outline
  • System Overview
  • System Performance
    • Computer&Network
    • Oracle Database
  • PS Control System
    • Ramping
  • Problems
  • Improvement
  • Summary

IMAC 2007.5.10

control system overview

VME

IOC

CABLE

Control System Overview

Public Network

Firwall

File Servers

Console

Console

Console

Console

Console

Console

Ethernet

VME

IOC

VME

IOC

VME

IOC

PC

PC

CABLE

CABLE

CABLE

CABLE

CABLE

Vacuum

AB PLCs

RS232

PS

Controllers…

Cryogenic

AB PLCs

RF

Controllers

PPS

PLCs

Interlock

PLCs

IMAC 2007.5.10

control system overview1
Control System Overview
  • Subsystems were put into operation on time before the beam commissioning.
    • PS control system
    • Vacuum/Temp. Monitor
    • Cryogenic control
    • Timing system
    • Safety&Interlock systems
    • Computer system
    • Network
    • Oracle database
  • operation&running are going well.

IMAC 2007.5.10

computer performance
Computer Performance
  • Sun File Server : 2-node fail over
    • CPU:8*1.2GHz UltraSPARC® III
    • Memory:32GB SDRAM Disk:6*73GB
    • CPU Load:10%~13%
    • Memory Load:19%~20%
  • Sun Workstation/Solaris running SAD
    • CPU:2*1.2GHz UltraSPARC® III
    • Memory:4GB SDRAM Disk:2*73GB
    • CPU Load:15%~18%Memory Load:24%~30%
  • HP PC/Linux running EDM
    • CPU:Pentium IV-3.2GHz
    • Memory:1GB DDR Disk:160GB SATA
    • CPU Load:40%~49%
    • Memory Load;34%~52%

IMAC 2007.5.10

computer performance1
Computer Performance
  • HP PC/Linux: Archiving ~6,000channel
    • CPU:Pentium IV-3.6GHz
    • Memory:2GB DDR Disk: 250GB、500GB SATA
    • CPU Load:40%~49%Memory Load:34%~52%
  • Oracle Server: ~4000 channel
    • 2 x Intel Xoen 3.0GHz
    • Memory: 2GB Disk: 2 x 146GB
    • CPU Load:40%~49%Memory Load:34%~52%
  • VME IOC(~30): MVME5100/VxWorks5.4.2
    • CPU: 450MHz Memory: 512M RAM
    • Max. CPU load: ~50%

IMAC 2007.5.10

control network
Control Network
  • Core Switch:Catalyst 4506 (redundant)
  • Edge Switch: Catalyst 3550/2950
  • Two separate VLAN
  • Network running ok(most case)
  • Network problem: slow (sometimes)
  • Occasionally, VME IOCs crash by network trouble
    • Loosing CA link between OPI and IOCs is a candidate of the cause

IMAC 2007.5.10

control network1
Control Network

IMAC 2007.5.10

oracle server
Oracle Server
  • Stores magnet measurement parameters
  • Stores real-time signal historical data over long period
      • PS
      • Vacuum
      • Temperature Measurement
      • Beam Instrumentations
      • Timing
      • Physics
  • Signals:~4000 Sample rate:1min. /time

IMAC 2007.5.10

web user interface
Web User Interface

IMAC 2007.5.10

query results
Query Results

2006/12/21 15:36:45 to 2006/1228 15:36:45

Beam Current within a week,max.201.2(mA)

IMAC 2007.5.10

query results1
Query Results

Vertical direction display

E+ beam current lifetime within a day

IMAC 2007.5.10

oracle db problems
Oracle DB Problems
  • Too much data saved
  • Disk(120GB)/RAM data storage space small
  • Disk usage
      • 600MB-700MB/24hours
      • 10GB/16x24hours
      • 300GB/year
  • Archived data not imported into Oracle
  • Upgrade Oracle Computer Configuration in future

IMAC 2007.5.10

ps control system
PS Control System
  • Signal:
    • ~10000个,11VME IOC
  • Basic Function:
    • ON/OFF/Status monitor
    • ON/OFF Command interlock with the setpoint
    • Alarm interlock with the setpoint

IMAC 2007.5.10

ps control calibration
PS Control Calibration
  • Before commissioning, Q、S PS calibration
  • Calibration: y=kx+b
    • K:slope; b: Intercept
    • Y: DCCT; x:PSC code(Hex.)
  • 10 points:
    • Linear fit data
    • Precision: 100ppm

IMAC 2007.5.10

ps opi
PS OPI
  • BSR、BER、BPR 3rings
  • 4 panels per ring (BSR/BER/BPR):
      • B、Q、S Monitor
      • B、Q、S ON/OFF
      • Corrector Monitor
      • Corrector ON/OFF

IMAC 2007.5.10

bpr ps monitor
BPR PS Monitor
  • Left: region 2、3,Right: region 1、4
  • 8row info,Magnet/Knob/Status/Arlam/DESIMON/Setpoint/Current
  • Ramping/STDZ/Execution Status Monitor

IMAC 2007.5.10

ps control commissioning
PS Control Commissioning
  • Device commissioning started region by region
  • On one hand magnets were installed, on the other hand magnet PS remote controls were tested
  • Short time for All PS control online testing
  • PS ramping region by region put into operation at the beginning of the beam commissioning
  • After the commissioning, start to develop the ramping program of the entire ring BSR
  • Short testing time for ramping program

IMAC 2007.5.10

ps ramping
PS Ramping
  • SR Running: 2006.12.25 –2007.2.2
  • Important Issue: Energy Ramping in BSR
  • Requirements:
    • All PS in BSR are ramped to the desired value synchronously (from 1.89GeV to 2.5GeV)
  • Implementation:
    • PS Control distributed(11 VME IOC)
    • Ramping program in every IOC
        • EPICS event to trigger every ramping program
        • Real-time DB processing slow(60Hz clock) , different CPU load, synchronization problem
    • Ramping program in a independent VME IOC
      • Change EPICS clock from 60Hz to 600Hz
        • Real-time database processing fast
      • write setpoint to setpoint DB of the all IOCs step by step
      • Ramping procedure is getting fast

IMAC 2007.5.10

b q s ps control distribution
B、Q、S PS Control Distribution
  • PS distribution is different, B PS independent, Q/S PS+ DC PS
  • 1 DC power to 10 choppers,for example :5 OQ and 5 IQ
  • Different PSC number in each VME crate:
    • PVs Num. Different ,Different CPU load
  • EPICS default clock : 60Hz PVs processing slow
  • Ramping Program in each IOC: not synchronously

IMAC 2007.5.10

three stage testing
Three Stage Testing
  • Stage 1(first half of Dec. 2006)
      • A ramping program in every IOC
      • EPICS IOC clock 60Hz
  • Stage 2(second half of Dec. 2006)
      • A ramping program in a independent IOC
      • EPICS IOC clock 60Hz
  • Stage3(Jan. 2007)
      • A ramping program in a independent IOC
      • Change EPICS IOC clock from 60Hz to 600Hz

IMAC 2007.5.10

stage 1 2006 11 2006 12
Stage 1(2006.11-2006.12)
  • a ramping program in every IOC
  • Dipole IOC propagate event to all IOCs.
  • Every Ramping program write setpoint to RTDB step by step
    • initial and final current first given
    • The number of steps determinedby
      • (Desimon-setpoint)/Delta
    • Delta determined by the option in the OPI
    • Setpoint=Setpoint+Delta
  • resulting in ramping relevant hardware.
  • Problems:
  • Slow: (1.89GeV to 2.5GeV)
  • Sometimes, not synchronized
  • Continuing the ramping, a rapid beam loss was encountered when the energy reached

VME crates in the network

IMAC 2007.5.10

stage 2 06 12
Stage 2 (06.12)
  • Re-arrange VME IOC distribution in the network
  • All IOCs are connected to a way to minimize the unrelated network traffic.
  • EPICS clock 60Hz
  • A ramping program in a independent IOC, no synchronization problem
  • Ramping Slow: 20 min. (1.89GeV to 2.5GeV)
  • Reason:
    • EPICS clock 60Hz resulting PVs processing slow
    • Time interval between two steps must be long enough

IMAC 2007.5.10

testing results

1.89Gev

2.5Gev

~20min.

Testing Results

IMAC 2007.5.10

stage 3 jan 07
Stage 3(Jan. 07)
  • Change EPICS clock from 60Hz to 600Hz
  • Testing with beam( 2 times)(On Jan. 30)
    • Current=46mA, slow speed,delta=0.5A,
      • Ramping from 1.89GeV to 2.5GeV:5 min. no beam loss
    • Current=47.89GeV, fast speed, delta=1.0A
      • Ramping from 1.89GeV to 2.5GeV:1.5 min. a little bit beam loss
  • Testing with beam(on Feb. 4)
    • Current=250mA,fast speed, delta=1.0A
      • Ramping from 1.89GeV to 2.5GeV(with 3 stops): ~1.5min. No beam loss
      • Continuing the ramping, a beam loss was encountered when the energy reached

IMAC 2007.5.10

testing results1

Max. Current

1.89Gev

2.5Gev

Current

~6min.

~1.5min.

Testing results

IMAC 2007.5.10

testing results2

Max. Current

2.5Gev

Current

1.89Gev

~5 min.

~1.5min.

Testing results

IMAC 2007.5.10

summary
Summary
  • Ramping program has a enough fast speed now
  • Improvement on Ramping Quality with beam
  • Different magnets, different PS, different magnetic field response
  • Improvement next step:
    • Linear ramping with smaller delta value (for eg. 10mA)
    • Table ramping
  • Current table related to the energy will be given by the AP group

IMAC 2007.5.10

system performance
System Performance

IMAC 2007.5.10

slide32
Thanks!

IMAC 2007.5.10