Research Concepts RC2000A - Manual (Page 70)

70 RC2000A Dual Axis Antenna Controller Appendix E Communications Protocol
7 6 5 4 3 2 1 0
0 0 1 0 $ 0 0 _ _
0 0 displayed in upper case letters
0 1 displayed in lower case letters
1 0 sat_name not displayed
bytes 14-18: az position This field will contain
the current azimuth position,
formatted in a manner identical
to how the position is displayed
on the front of the unit, '
0' to '65535'. If an azimuth
limit is active, the field will
contain either ' CCW' or '
CW'.
bytes 19-23: el position This field will contain
the current elevation position,
formatted in a manner identical
to how the position is displayed
on the front of the unit, '
0' to '65535'. If an elevation
limit is active, the field will
contain either ' DOWN' or ' UP
'.
bytes 24-25: pol position
If a polarotor is present in the
system this field will contain
the current polarization
position, formatted in a manner
similar to how the position is
displayed on the front of the
unit, ' 0' to '98', or 'CC' or
'CW' if a limit is active. As
the polarotor moves counter
clockwise (as viewed looking
into the feed horn), the
displayed numbers get greater.
If a rotating feed is present in
the system, this field will
contain a value in the range of
0 to 92, 'CW' or 'CC'. The
value in this field will be
related to the value displayed
on the user interface of the
controller by the following
formula ...
byte_24_25_position =
user_interface_position / 11.
where
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