Index
encoders az_per_turn, el_per_turn, dk_per_turn
Specify the scale and sense of each of the telescope encoders.
- Arguments:
-
EncoderCount az_per_turn
- The number of azimuth encoder counts per turn.
EncoderCount el_per_turn
- The number of elevation encoder counts per turn.
EncoderCount dk_per_turn
- The number of deck encoder counts per turn.
- Example:
- The following example specifies that one turn of both the azimuth
and elevation axes constitutes 2^22 encoder counts, and it
specifies that a rotation of 2^19 counts on the deck axis results
in the deck axis rotating "backwards" by one turn. In this
example, the values are specified in hexadecimal.
encoders 0x400000, 0x400000, -0x80000
- Context:
- Before the control system can point the telescope, the encoders
command must be invoked to tell it the scale factors of the
azimuth, elevation and deck encoders. The encoders command should
thus be called from the
$CBI_DIR/conf/rtc.init
boot
script.
Martin Shepherd (23-Jan-1999)