Package: Coudé Focus Device

Description:  Control of the Beam switching device located at the Coudé focus.

Package name:  cfd

Inheritance:  LCU Server Framework <<SubSystem>>lsfSERVER

Controlled HW Devices: 

• <<Motor Device>>cfd:lsfMOTOR
  • Database: lsfDB_MOTOR

  Controlled SW Devices: none

  Deployment:  Azimuth LCU: atcfdServer

  Use Case diagram: 

  

  Class diagram: 

  

  Architecture: 

  This Software Device is instantiated from the LCU Server Framework lsf.
  The sub-class <<SW Device>>cfdSERVER:lsfSERVER is composed of an instance of the motor class <<Motor Device>>cfd:lsfMOTOR.

  

  The Software Device atcfdServer provides the following Specific Commands:

  • SETBEAM and GETBEAM: set and get the Coudé Beam switching device

   

  Commands SETBEAM / GETBEAM

  These commands are transient instances resp. of the classes
  <<Control>>cfdSETBEAM:lsfCOMMAND_HANDLER and
  <<Control>>cfdGETBEAM:lsfCOMMAND_HANDLER.

  They invoke the inherited methods lsfMOTOR::lsfMotorMoveAbs(char *name[]) and lsfMOTOR::getPosition():

   

  Sequence diagram:

  

  Activity diagram:

  

  The Coudé Beam switching device is intended to be used mainly for optical alignments, thus only the position mode is relevant here. The positions are accessible via their names (see MCM Named Positions):

  • STOP: Coudé beam does not reach the detectors.
  • MIRROR: Coudé beam to FAS TCCD only.
  • SPLIT: Coudé beam to both detectors.
  • HOLE: Coudé beam to STRAP APD only.
  The default (observation) position is SPLIT.

  Command Definition Table: atcfdServer.cdt

  Command Interpreter Table: atcfdServer.cit

  Reuse from VLT TCS: New Package

  Issues to be Determined or Resolved: None
  

  Last modified: Tue Jun 26 14:23:15 UTC 2001