Use Case:  Open/Close Shutter(s)

Description:  Open / Close shutter(s) for beam alignment

Role(s)/Actor(s): 
Primary: PRIMA Metrology Control System
Secondary: PRIMA FSU-B Shutters, PRIMA FSU-A Shutters,
MIDI Shutters, AMBER Shutters

Priority: Major

Performance: 1sec

Frequency: At any time during alignment

Preconditions: 

• Shutters are ONLINE

Basic Course: 

• Send command OPEN [<shutter>] to the Beam Alignement sub-system
• Beam Alignement sub-system opens the specified shutter
• Beam Alignement sub-system sends OK/ERROR reply

Alternate Course: 

• Send command CLOSE [<shutter>] to the Beam Alignement sub-system
• Beam Alignement sub-system closes the specified shutter
• Beam Alignement sub-system sends OK/ERROR reply

Postconditions: 

• Beam Shutter(s) is Open resp. Closed.

Issues to be Determined or Resolved:  Type and number of shutters

Notes:

Last modified: Tue Feb 25 11:00:08 MET 2003