Progress Report on CGSE Control System

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Progress Report on CGSE Control System
Project Team of SJTU for AMS-02 Yang Yupu AMS
TIM _at_NASA JSC, Jan 8-12, 2007
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I/O Module
valves Box
Dewar system
PROFIBUS
PLC
Cryostat
Monitoring PC
CANbus
Magnet
CAB
( Cryo-magnet Avionics Box)
Tasks of CGSE 1 Cooling down the AMS magnet
(from 300K to 1.8K) 2 Filling magnet vessel
with super-fluid helium (2500 lit _at_1.8 K )
operator station
CGSE Cryogenic Ground Support Equipment
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Contents

• 1 Hardware System Completed
• 2 Software Modules are Ongoing
• 2.1 Communicating Module
• 2.2 Control Algorithm Module
• 2.3 HMI Module
• 3 Test Platform for Super-fluid Helium Experiment
• 4 Further Works

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• 1 Hardware System Completed
• 1.1 Config of S7-410H controller is finished
• 1.2 Config of ET200-DP stations is finished
• 1.3 Hardware of Communication is finished

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Hardware System Completed
Communication Interface
Distributed I/O Module
CGSE-Valve Control simulator
Magnet Data Simulator
Redundant Controller
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WinCC HMI
Distributed I/O Module
Redundant Frofibus
Redundant PLC
Assembly of the Redundant PLC System in SJTU
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Config of S7-414H PLC
Structure Config
Field-Bus Config
PLC 414H Config
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Distributed I/O Module Siemens ET-200
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2.1 Communicating Module 1 Communicating Module
based on CANbus
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I/O Module
valves Box
Dewar system
PROFIBUS
PLC
Cryostat
Monitoring PC
CANbus
Magnet
CAB
( Cryo-magnet Avionics Box)
Tasks of CGSE 1 Cooling down the AMS magnet
(from 300K to 1.8K) 2 Filling magnet
vessel with liquid helium (2500 lit _at_1.8 K )
operator station
CGSE Cryogenic Ground Support Equipment
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CGSE control system need to get from the magnet
the following parameters (Confirmed at the
TIM_at_cern April 2006)

• Temperatures of helium cooling flow across the
  magnet T21, T19 and their difference (T21-T19).
  (from CAB)
• (This temperature difference should be not
  more 50 K during cooling of the magnet in the
  range 300-80 K )

2. Helium temperature T07 . (from CAB)
( for control of pumping AMS magnet to super
fluid state at 1.8 K ) following
parameters for filling up procedure
3. Signal from helium level meters L02, L03.
(CGSE direct from the meters) 4. Pressure in AMS
main helium tank P04, P05. (from CAB) 5.
Temperatures of the AMS VCS T09-T12 . (
from CAB) 6. AMS temperatures in SFHe Cooling
Loop (T01-T06). (from CAB ) 7. Position of
AMS valves open or close. (Some from CAB, some
from CGSE and new table from SCL/McMahon 5
May,2006)
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1 Communicating Module based on CANbus
Function of CAN Master, TCP_Client and CAN
Slave
1 CAN Master is mainly used at the connection and
communication between CAN networks and TCP/IP
networks. It functionally works as an gateway. 2
Function of TCP Client is to Simulate CGSE
sending commands to TCP Server (CAN Master)
through the TCP/IP networks and receiving its
response. 3 CAN Slave is mainly used to simulate
the slave node (CAB) of CGSE, and implement the
functions such as data-feedback, reading the
values of locale data-collection equipment, etc.
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Display Interface of CAN Master
Display Interface of CAN_Slave
Display Interface of TCP Client
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CAN Slave (CAB of Magnet)
TCP_Client
CAN Master
Interface of CGSE-MS
Ethernet
FrofiBus
Testing of communication software in SJTU
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EPP-CAN Box1
CAN Bus
Transmeter
Sensor
EPP-CAN Box2
EPP-CAN Boxes and temperature sensor in
communication software testing
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2.1 Communicating Module 2
Communicating Module for CAB
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General Scheme of Communicating Module for CAB
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Data format used in the module
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Developing work is ongoing
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2.2 Control Algorithm Module 1 Supervising of
Status of I/O Stations 2 Testing PID Control
Algorithm of Valves 3 Test Module for OPC
Link 4 Object Identification Module 5 Control
test for large Delay Temperature Process 6
Modified Smith Control Algorithm
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1 Supervising of Status of I/O Stations
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2 Testing PID Control Algorithm of Valves
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3 Test Module for OPC Link
OPC is a important protocol used in control
industry for easy linking software which produced
by different developers.
OPC Interaction Module
Communication Based on OPC
Functions Diagram of OPC Interaction Module
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4 Object Identification Module
Identification Data
Identification Algorithm
Identification Result
Identification Object
y(k) 0.7093y(k-1) 0.1260y(k-2)0.1619y(k-3)
0.0007u(k-15) 0.0038u(k-16)
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5 Control test for large Delay Temperature Process
Control with a high precision for a large delay
object is still a challenge in control community.
The process of cooling down the Magnet is maybe a
large delay control task.
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Control test to large Delay Temperature
Process (Hardware)
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6 Modified Smith Control Algorithm
(Smith Control Algorithm is a basic method to
control delay object, but it is difficult to
satisfy for large delay object .)
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Simulation Result of Cooling Down for the Magnet
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2.3 HMI Module HMI of CGSE Control System Based
on Siemens WinCC
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4 Control Platform for Super-fluid Helium
Experiment In SJTU
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• Design Requirement
• 1 Provide a control and measure system for
  obtaining, maintaining and transmitting
  super-fluid helium
• Support the function such as multi-data
  collecting, display, recording and archiving of
  the process data
• Flexible and expandable. Some functional modules
  in this system are designed to be suitable for
  other occasions in CGSE

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Hardware Schema of the Control Platform
The platform is built under MCGS and VB6
environment upon an industrial computer, which
communicates with instruments through PCI boards
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HMI
Controller
Signal Connection Box
Hardware Assembly of the Control Platform
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List of Signal type and interface
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Software design
Platform design Environment
Object
Strategies design
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HMI of Control Platform for Super-fluid Helium
Experiment
Experiment Platform For Super-fluid Helium
Differential Pressure
Dewar1
Dewar2
Gas Temperature
Liquid Level
Gas Temperature
Liquid Level
Flux
Liquid Temperature
Pressure
Pressure
Liquid Temperature
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Pipeline of SF Helium
Dewar 2
Compressor
Dewar 1
Control Platform
The Control Platform in the working place of
Super-fluid Helium Experiment in SJTU
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4 Further Works

• 1 Continue to perfect the communication the
  software
• 2 Continue to configure the Interface between PLC
  and mechanical system of CGSE.
• 3 Continue to develop HMI (Human Machine
  Interface) software based on Siemens WinCC.
• 4 Continue to develop software modules for whole
  integration of CGSE in SJTU

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Thank You!