Use Case:  Configure Chopping

Description:  Configure chopping parameters (like throw, offset, orientation, frequency, peak-valley-ratio).

Role(s)/Actor(s): 
Primary: Operator, Maintenance

Priority:  Major

Performance:  Some seconds

Frequency:  At every change of chopping parameters

Package Assignment:  Chopping.

Preconditions:

• ATCS is ONLINE

Basic Course: 

• Send command to configure chopping parameters
  Exception course: Command failed
• ATCS checks and stores chopping parameters for next start of chopping
  Exception course: Invalid configuration parameters
• ATCS returns OK reply

Exception Course: Invalid configuration parameters

• ATCS returns ERROR reply
  Postcondition: Chopping configuration is not updated

Exception Course: Command failed

• ATCS returns ERROR reply

Postconditions: 

• Chopping configuration parameters are checked and stored

Issues to be Determined or Resolved: 

Notes: Stroke is 6" on sky, ratio 0.2-5, Frequency 0.1-5Hz

Last modified: Thu Jun 28 13:08:22 UTC 2001