Introduction to the TSL Control System

1
Introduction to the TSL Control System

• K. Gajewski
• M. Pettersson

2
Introduction

• A new control system as a common platform for
  cyclotrons and CELSIUS operation
• Work on it started in 1991
• Finished in 1997 (all subsystems connected)
• and continuously going on.

3
Agenda

• Control systems hardware layout (KG)
• Some ideas behind the systems design (KG)
• Control systems software components and its
  interconnection (KG)
• What is a parameter in our control system (MP)
• Application Program Interfaces (API) available in
  our control system (MP)

4
Hardware Architecture
5
Control Systems Layout
6
Ideas Behind the Design

• Distributed system, redundant top layer, possible
  remote access
• Top level computer crash/shutdown and should not
  influence the operation of the machine
• Scalable system (to some extend)
• Well defined, simple and efficient control
  protocol for communication between the top layer
  and I/O controllers

7
Ideas Behind the Design (cont.)

• A general parameter structure (specific
  implementation hidden to the user)
• All real time tasks running on I/O controllers or
  front ends
• Security parameter reservation implemented in
  the I/O controller (VME)
• Alarms are generated in the I/O controllers
• Operators should have possibility to configure
  their work environment (workspace layout, menus,
  synoptic screens, etc.)

8
Software Components

• Workstations (Sun)
• Applications (synoptic, archmgr, bcmplot)
• API (C-, FORTRAN-library, tcl/tk,)
• Servers (srv, upbmsgd, gpibd)
• I/O Controllers (VME)
• Net server (one for each workstation)
• Db server
• Log server
• www server
• I/O servers (specific for each type of
  interface/device)

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Software Components (cont.)

• Front end
• PLC programs (vacuum, interlocks)
• Assembler programs (G64)
• C programs (DSP)

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Software Components Layout
11
Control Protocol

• TCP/IP is used for transport
• Message based synchronous master/slave
  communication
• A message consists of 2 parts
• Header (fixed layout)
• Data (optional)
• About 40 different types of messages

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Message Flow
13
Parameter What is that?
14
Application Program Interfaces

• C language
• FORTRAN
• Tcl/tk
• LabVIEW

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Summary

• We hope you now have some idea how the TSL
  control system is designed and how it works
• It was just an outline -
• Request feedback of training session

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Where to Get More Information

• The training camp on 8-9 January 2002 will give
  more in depth knowledge and more practical skills
  for most related personel
• For those interested in developing control system
  applications there will be exercise session(s)
  organized in the lab
• Kompendium för Kontrollsystemskurs (in swedish)
• Our web site wwwcs.tsl.uu.se