PNS MANUAL: operation / control

How to run the instrument from the PC once connected.

Command Glossary

STATUS reports position of mask and shutter
MASKO opens mask, reporting if fails
MASKC closes mask, reporting if fails
SHUTO opens shutter, reporting if fails
SHUTC closes shutter, reporting if fails
EXPOSE T     exposes for T seconds
procedure opens shutter and mask, reporting if fails, and commences timing; at T seconds procedure will close shutter, reporting if fails; exposure time (which is approximate due to the slow shutter) may be modified during integration
CALIB opens shutter and closes mask, reporting if fails
FOCUST   performs a focus run on a star or PN
  procedure opens the shutter five times for T seconds on a single CCD frame; instructions are given on moving the telescope and focus to create a sequence; last one in the sequence has longer exposure and larger step



commands in second-generation controller

(draft 26/11/05)

ACTION BUTTONS

The buttons are green, turn red if action failed


in addition there are status lamps which are continually updated when the program is idle. It should be possible to have several buttons active: e.g. switch filter whilst the mask is moving.

MASKO opens mask
MASKC closes mask
SHUTO opens shutter
SHUTC closes shutter
Ha-arm filter change filter
procedure toggles filter in camera between Ha and wide-band
EXPOSE [T]     exposes for T seconds
procedure opens shutter and mask, reporting if fails, and commences timing; at T seconds procedure will close shutter, reporting if fails; exposure time (which is approximate due to the slow shutter) may be modified during integration
CALIB opens shutter and closes mask, reporting if fails
FOCUS[T]   performs a focus run on a star or PN
  procedure opens the shutter five times for T seconds

here [T] represents a number entered into a fill-out form

STATUS LAMPS

yes no
SHUTTER open (green) (red)
MASK out (green) (red)
Ha FILTER in (green) (red)
WIDE FILTER out (green) (red)

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