Use Case:  Perform Standard Commands

Description:  Process standard command

Role(s)/Actor(s): 
Primary: PRIMA Metrology Control System
Secondary: Beam Alignment, Metrology Measurement and Light Source Stabilization sub-systems

Priority: Critical

Performance: up to some minutes

Frequency: At any time

Preconditions: 

• Processes ready to receive commands

Basic Course: 

• Receive new standard command
  Exception Course: Receive failed
  Exception Course: Not a standard command
• Send the command to all dependent sub-systems
  ONLY for the commands OFF, INIT, STANDBY, ONLINE, STOP/BREAK, EXIT/KILL and SELFTST
  Wait for those devices to reply
  Exception Course: Send failed
• Process command:
  

   
  Standard Commands:

  • Subflow: Command OFF
  • Subflow: Command INIT
  • Subflow: Command STANDBY
  • Subflow: Command ONLINE
  • Subflow: Commands STOP|BREAK
  • Subflow: Commands EXIT|KILL
  
  
  • Subflow: Command SIMULAT
  • Subflow: Command STOPSIM
  • Subflow: Command SELFTST
  • Subflow: Command TEST

   
  Query & Tool Commands:

  • Subflow: Command STATE
  • Subflow: Command STATUS
  • Subflow: Command VERSION
  
  
  • Subflow: Command GETINIT
  • Subflow: Command GETSIM
  
  
  • Subflow: Command VERBOSE
  • Subflow: Command GETVERB
  • Subflow: Command DEBUG
  • Subflow: Command GETDEBU
  • Subflow: Command TRACE
  • Subflow: Command GETTRA
  Exception Course: Command failed
• Return OK reply

Subflow:  Command OFF

• Set process to Loaded, ready to receive commands.
  Postcondition: State is LOADED - Idle Not Initialized.

Subflow:  Command INIT

• Initialize processes
  Postcondition: State is LOADED - Idle Initialized.

Subflow:  Command STANDBY

• Set processes in Stand-By
  Postcondition: State is STANDBY - Idle or Monitoring.

Subflow:  Command ONLINE

• Set processes On-Line
  Postcondition: State is ONLINE - Idle or Monitoring.

Subflow:  Commands STOP | BREAK

• Stop any on-going activity
  Postcondition: State is unchanged - Sub-state is Idle or Monitoring.

Subflow:  Commands EXIT | KILL

• Terminate process
  Postcondition: State is OFF - Idle
  The process is terminated.

Subflow:  Command SIMULAT

• Set the process to simulation mode
  Postcondition: State is LOADED - Idle Not Initialized.

Subflow:  Command STOPSIM

• Set the process back to normal mode
  Postcondition: State is LOADED - Idle Not Initialized.

Subflow:  Command SELFTST

• Performs a selftest
  Postcondition: State is unchanged - Sub-state is Idle or Monitoring.

Subflow:  Command TEST

• Performs complete system tests
  Postcondition: State is LOADED - Idle Not Initialized.

Subflow:  Command STATE

• Return current state (evt. with sub-state)
  Postcondition: State is unchanged.

Subflow:  Command STATUS

• Return current system status
  Postcondition: State is unchanged.

Subflow:  Command VERSION

• Return module version
  Postcondition: State is unchanged.

Subflow:  Command GETINIT

• Return the Initialization status: Not Initialized|Initializing|Initialized
  Postcondition: State is unchanged.

Subflow:  Command GETSIM

• Return simulation flag
  Postcondition: State is unchanged.

Subflow:  Command VERBOSE

• Set verbose mode On|Off
  Postcondition: State is unchanged.

Subflow:  Command GETVERB

• Return verbose mode
  Postcondition: State is unchanged.

Subflow:  Command DEBUG

• Set debug flag On|Off
  Postcondition: State is unchanged.

Subflow:  Command GETDEBU

• Return debug flag
  Postcondition: State is unchanged.

Subflow:  Command TRACE

• Set trace flag On|Off
  Postcondition: State is unchanged.

Subflow:  Command GETTRA

• Return trace flag
  Postcondition: State is unchanged.

Exception Course: Receive failed

• Return Error reply

Exception Course: Not a standard command

• Return Error reply

Exception Course: Command failed

• Return Error reply

Postconditions: 

• Module in requested state - sub-state.

Issues to be Determined or Resolved: 

Notes: see lsf

Last modified: Wed Feb 26 10:11:07 MET 2003