1

Progress of the Controlsfor BEPCII

EPICS Seminar

Presented by J. Zhao

20 August, 2002

2

Outline

–Progress

–System design

3

Part I Progress

–What we have done

–What’s the next

4

What we have done

User requirement– Functions– Control accuracy– Operating mode and sequence– Requirement of OPI– Device protection– Tables:

• Device infor. • Channels• Name convention of DB

5

What we have done

System analysis System design International review meeting

• 13-17 May, 2002 SLAC• Comments: pay attention to

• The modeling applications• Developing the I/O drivers for special devices • Timing system

6

What we have done

Installed hardware platformA SUN Ultra10 Workstation A PPC750 IOC: MVME2431

Built EPICS environmentEPICS base and extensions

7

What we have done

Practice and evaluation DB configurationDM2K, MEDMStripToolGnuplot

Developed a Linux IOC on PC PCI & ISA device driver on Linux PlatformPCI & ISA device driver on Linux Platform

VME I/O driver on vxWorksVME I/O driver on vxWorks

8

The next step

Build complete prototype systemOrder hardware interface

• VME-CANbus, VME-CAMAC• VME-RS-485,232, VME I/O modules• PSC-PSI

Order CapFast

Order Oracle

To solve the key technologies

9

The next step

Selecting a Lab. from which the modeling applications will be transferred

It might be KEKB or others Creating an EPICS platform for IHEP users

to learn EPICS

10

Part II System design

– Introduction

– System architecture

– System development

– Subsystems

– Interlock system

– Oracle DB

– Timing system

11

1. Introduction

BEPCII – Injector Linac

– Two transport lines– Two storage rings

System data of BEPCII– 1700 devices (800 at BEPC)– About 9500 channels (4,500 at BEPC)

should be a stable and practical system

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Function of the system

Controlling and monitoring equipments

in central and local control room Providing accelerator commissioning tools

with a friendly man-machine interface Timing system to synchronize the accelerator

equipment Storing raw data and information in DB

for later analyses

13

System Components

Computer control system– Host and front-end computers– Network links– Device interfaces– Operator console– Database service

Timing system– Synchronizing the accelerator equipment for beam injection,

storage and collision

Safety interlock system– equipment protect and personnel safety system

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Number of device and channels

Device Num. AI AO DI DO WF other Sum

Power supply 399 399 399 1596 798 3192

Vacuum 517 957 398 814 994 488 3651

Injection kicker 8 8 16 40 4 4 72

Radio frequency 7 72 35 180 50 4 341

Beam diagnostic 459 864 80 80 6 1030

Injector Linac 325 559 198 228 198 36 1219

Summary 1715 2859 1046 2938 2124 50 488 9505

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The current system BEPC control system

– Transferred from SLAC New Spear system in 1987

– Upgraded in 1994 A VAX4500 machine with CAMAC system controls PC based subsystem

VAX 4500

WS consoleEthernet

PS, Vacuum, RF

Injection Beam diagnostic Injector

CAMAC system

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Upgrade plan

New equipment have to be controlled– BEPCII has double ring, the number of device will be increased

– Super-conducting RF cavities and magnets

– New magnet power supplies and vacuum devices

Upgrading software structure with EPICS– The software structure of BEPC can not support BEPCII

– Experimental Physics and Industrial Control System

Modifying timing system– RF frequency will be changed from 200MHz to 499.8MHz

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Design Philosophy

Adopting distributed architecture Keeping the existing equipment in use

– CAMAC modules– PCs

Applying standard hardware interfaces– VME, Feildbuses, PLCs etc.

Cost-performance should be considered

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2. System Architecture

Distributed architecture– Presentation layer– Process control layer– Device interface layer

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Presentation layer

SUN Unix WS and PCs

used as operator console

SUN or HP Server – Database service– Computing resources

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Process Control layer

Seven subsystems:– Power Supply system, – RF, Vacuum, Beam diagnostic, – injection PS and Linac controls

Front-end computers (IOC)– VME Power PC (MVME2431)– PCs

Real-time O.S. VxWorks

IOC database in physical memory

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Device Interface Layer

Provide interfaces to the hardware

Hardware standards– VME, CAMAC I/O modules– Allen-Bradley PLCs– FB remote I/O controller (made in China)– PSC-PSI

Field-buses serve data communication

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Data Communication

The standard 100Mb Ethernet serves data communication in the high level

The fieldbuses make data exchange in the low level

• ControlNet• CANbus • RS-485, RS232

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Hardware structure

PCs

Vacuum

Linac

VME IOC VME IOC

CAMAC

Ethernet

console

PS of TL

RF devices

PS of SR

Beam Feedback

VME IOC

GPIB

Waveform

Fie

ld b

us

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3. System development

Software engineeringsystem development stages Asking for user requirement System design coding and testing Installation

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Development tool EPICS

Developing BEPCII control system by EPICS

– OPI (operator interface)• UNIX WS or PCs/Linux with tools

DM2K, ALH, Channel archiver, GDCT/Capfast, Knob managerSNL languige

– CA (channel access)/CDEV • C/C++, Labview, tcl/tk,

– IOC (input/output controller) • VME CPU board or PCs• VxWorks• real-time database• device drivers

IOC

CA server

CA client

OPI

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System development plan

Creating EPICS Prototype Installing hardware platform Software development

– Installing EPICS base and extensions– Creating EPICS IOC database– Developing

• operator consoles

• applications for device control

– Accelerator commissioning programs• Transferred from KEKB or other Lab.

– Creating Oracle database service

Upgrade of timing system

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4. Subsystems

Power supply Vacuum RF control Linac control

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Power Supply Control

PS on SR: about 350 new– 10 VME IOCs are located in the local area– ADC/DAC unit is inside the power supply to make settings and readings

PS on TL: 53 old– Connecting CAMAC system to VME IOC with VME-CAMAC interface– Or VME I/O modules depends on the budget and man-power

Ethernet

VME crate

CAMAC crate1

SUN PC

2992

PC750

I/

O

VME crate 1

SCC

PC750

I/

O

I/

O

I/

O

DACADC

Powersupply

DACADCDACADC

Transport line PS

I/O

I/O

I/O

I/O

I/O

I/

O

PC750

I/

O

I/

O

Tim

er

Powersupply

Powersupply

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Power Supply Control

Monitor current, status (on/off, local/remote, normal/alarm) Control on/off

Settings

Ramp, Directly, Synchronized, Table ramp

Standardization

knobs Interlock temperature of a magnet with its power supply

IOCs of the power supply control

status (on/offlocal/remote

normal/alarm)

interlockoutput

Command

table ramp

Current

Setpoint on/off

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Vacuum Control

Two VME IOC Connecting intelligent device to VME IOC by RS-485 and RS-232 Vacuum interlock system consists of

– Allen-Bradley PLC (ControlLogix5555 and AB-1756 I/O)– ControlNet (SST-5136CN-VME or Ethernet)

OPI（PC）

OPI(Work station)

Local central

IOC(VME)

Interlock(ControlLogix)

Gaugecontroller

Ion pump PScontroller

OPI

Process control

Device control

devices

Ethernet

RS-232RS-485E

ther

net

/IP

RS-

232

valve gauge pump

Interlock

Figure Vacuum Control

readings

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Vacuum Control

Monitor Vacuum pressure

Temperature of vacuum chamber

Current, voltage of pump

Status (on/off, normal/alarm) Interlock vacuum pressure with section valves

IOC of Vacuum control

VacuumsPressure Temperature

Status(on/off, N/A)

Interlock info

Interlockoutput

CurrentVoltageof pump

on/off pump HV

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RF control VME IOC MVNE2431 VME I/O modules Oscilloscope - GPIB- PC for collecting waveform signal

EPICS PCAS on the PC RF interlock system including cryogenic system

consists of AB-PLC and ControlNet

OPI OPI

VME/IOC

Ethernet

Low level control

Waveformcollect

Klystron SC Cavity RF Interlocksystem

PLC

Interlock

PC IOC

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RF control

Monitor volts, power, phase, tuning,

temperature and vacuum pressure,

status of water, gas and cryo. System information Control on/off RF power source

setting volts

adjusting tuning system

adjust RF phase continuously 0-360 degree Interlock vacuum, Temp., Cryogenic system with RF devices

IOC of RF control

VoltspowerVSWR

PhaseTunning

Temp.Vacuum

Watergas

on/off RFpower source

Cryo.infor.

settingvotage

cavitytunning

Interlockoutput

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Linac Control

Functions Power supply control (Upgrade,new PS)

Klystron&modulator control (Upgrade)– Interlocking vacuum pressure of outside/inside windows of klystron

with modulator HV– Measuring RF phase and amplitude of output envelop

Phase-shift control (rebuild)– Adjusting/monitoring the stroke of electromotor of phase-shift and

attenuators

Vacuum control (Upgrade,60 new pump)

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Linac Control

Functions Electron gun control (new)

– Monitoring current, vacuum pressure– Adjusting current and choose operation mode

e+ target control (rebuild)

Display beam parameters (Part task)

Beam optics and orbit correction system (Part task)

– Measuring parameters of RF power source, power supplies, and BPM etc.– Making feed back control for Q&corrector PS

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Linac Control

Current system Front-end: PC WIN98 Field bus: CANbus Device controller: FB remote I/O modules

RS232-CANbus

CANbus / RS422

PC-P3 550 WIN98

Remote I/O

Device

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Linac controlVME IOC in Linac control room to replace the PCs FB series remote I/O controller for device control CAN bus serves data communication Oscilloscope and PC for waveform signal collection (EPICS/PCA

S)

SUN Work Station PC OPI PC OPI

VME/IOC

MV

ME2431

TIP

810

TIP

810

TIP

810

TIP

810 PC/IOC

Power Suppliy Klystron Phase-shift

CANbus

Ethernet

Interlock

GPIB

DeviceController

Vacuum

GPIB

Oscilloscope

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5. Interlock system

Layers of the interlock system

Central Interlock System

InjectorLinacSystem

StorageRing

System

DetectorSystem

SynchrotronRadiation

System

CoolingWater

CryogenicSystem

PersonalSafetySystem

ConventionalFacility

MKMW

VacuumMagnets

RFMagnet PS

VacuumKicker

HV Protec.Magnet PSDetector

Electronics

Hutch areaVacuum

Electronics

CoolWater

CryogenicSystem

Fire AlarmTunnel GareDose Monitor

Power StationEP Transmitter

Gas

System level

Device level

Central level

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5. Interlock system Functions of central interlock system

– Making interlock between systems

– Treating emergency accident

– Displaying alarm summary in central control room

– Publish alarm information to corresponding area

Interlock server

Ethernet

Central Control level

PC PC

Fieldbus Links

PLCsdevice

controllers

devices devices

Equipment protection

Gates

Interlockcontrolpannel

Personal safety

Controllers

Keys ofaccelerator

VME/IOC

PC

Dose detectore

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5. Interlock system

Flow chart of interlock system

r

Linac ready Transport line ready Storage ring ready Detector ready Beam line of SR ready

Interlock System ready

Power ready Cooling water ready Cryogenic system ready Gas system ready Personal saftety ready

Start

Running

shut down

Mode selection

Running or Changing modeor Pause

Accelerator on Detector on Interlock system on

Collision mode

Accelerator on Detector on Interlock system on

SR mode

SearchShutdown

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6. Database Two databases

– IOC real-time database to store real-time data– Oracle database to store a lot of information

Information in database– Static parameters

• Machine parameters• Device data• Configuration parameters of control system

– Dynamic parameters• Device status• Alarm data• Beam parameters

– Management information• Project management• Technical files• Personal information

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6. Database Name convention

– Domain name

RI Storage ring (inner ring)

RO Storage ring (outer ring)

TL Transport line

L Injector Linac

– Sub-domain PS, VC, RF, MK, K, B etc.

– Device name B,Q,S, Pump etc.

– Signal type AI, AO, DI, DO, CALC etc.

– Description string

RI: PS: Q1: AI1: Current

description unit (current of the magnet power supply)

signal type (analog input, number1)

device name and number (first quadrupole)

subdomain (power supply system)

Domain: storage ring (internal ring)

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6. Database

Relation between IOC database and Oracle

Usersmanager physicists,

operator engineer

Usersmanager physicists,

operator engineer

Channel Archiver

OCI

Export Import

Oracle DB

Oracle Oddis Tools MS Excel with ODBC WEB Browser Programs

Oracle Server Manager ASCII File MS Excel User Programs

Device Data

Alarm DataBeam Parameters

IOCReal-Time DB

Export Configuration file GDCT/DCT CapFast

Web Browser 2D,3D plot MS Excel programs

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7. Timing System

Functions– Synchronize the equipment of the accelerator

• the electron gun, klystron, modulators and the injection kickers -- the bunch -- injected into -- bucket

– Provide reference time • for beam diagnostic system and other system

The timing system has to be upgraded– RF frequency will be changed from 200MHz to 499.8MHz– There are two revolution frequency for

• collision mode (1.264MHz)• Synchrotron radiation mode ( 1.242MHz)

Send people to go to KEKB learning timing system and order the hardware modules from Japan

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8. key technologies

key technologies– Creating system architecture with the EPICS– merging existing system to the EPICS– Developing front-end applications– Transferring modeling Applications

Build a prototype to study the key technologies

Making international and domestic cooperation

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9. Man power

The Man Power– Total 15 persons for 4 years

• Project manager 1

• Hardware engineer 4

• Software engineer 10– The computer and EPICS system manager – EPICS database manager – VxWorks expert with Front-end I/O– Programmers for applications

(PS,RF,Vacuum,Linac…)– Oracle Database manager– Network manager

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10. CPM plan

R&D 8 month Detailed design 4 month System development 28 month Installation & testing 8 month Total 4 years

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Summary

Progress System design

Thank you!