CLEAR:
clear the detectors
This page is part of the ING document
INS-DAS-24:
client-server interface for control of cameras
Purpose: flush away accumulated charge from the detectors and
prepare for an integration.
Actors: udas_run client; udas_camera server; camera.
Outline: the client invokes the RUN action on the server and the camera
clears the detectors. After the action, charge is being integrated on the
deetctors.
Normal course of events:
-
Client invokes the CLEAR action on the server, with no arguments.
-
Server tells the camera to clear the detectors and waits for it to finish.
-
Camera clears the detectors and takes the detector electonics out of idle
mode (i.e. stop the continual clearing of the detectors that happens between
observations).
-
Camera reports that the clearing was successful; server returns good status
to the client.
-
Camera now integrates charge on the detectors.
Variations:
-
Camera fails to clear the detectors or does not respond to the server's
command. Server returns an error message to the client and returns status
UDAS__CAMCMDFAIL or UDAS__CAMLINKDOWN.
-
Clocks are not idling or integrating. Server returns status UDAS__CLOCKSBUSY.