User Manual

Handbook for the Starlight Xpress AO unit
Issue 1 21/8/2005
The command list for parallel mode
Please note that negative logic is used for all commands – an ‘active’ input is pulled
down to the ground (0v) rail. The directions of movement are based on an inverted image
and with the AO unit arranged with its North-South axis at 90 degrees to the Declination
axis.
Guiding functions
East North South West Function
0 0 0 0 Find Centre /
Switch from
serial to parallel
mode
1 1 1 0 AO West
1 1 0 1 AO South
1 0 1 1 AO North
0 1 1 1 AO East
0 0 0 1 Mount West
0 0 1 0 Mount South
0 1 0 0 Mount North
1 0 0 0 Mount East
0 0 1 1 Force low
motor speed
1 1 0 0 Enter set up
mode
Set up mode functions
1 1 1 0 West motor
forward
1 1 0 1 South motor
forward
1 0 1 1 North motor
forward
0 1 1 1 East motor
forward
1 0 1 0 West motor
back
1 0 0 1 South motor
back
0 1 1 0 North motor