Research Concepts RC2000A - Manual (Page 72)

72 RC2000A Dual Axis Antenna Controller Appendix E Communications Protocol
movement in progress'.
byte 28 : elevation movement/alarm status - binary
data
7 6 5 4 3 2 1 0
0 0 1 0 $ _ _ _ _
0 0 0 0 no alarms or movement
0 0 1 0 down movement pending
0 0 1 1 up movement pending
0 1 0 0 down movement in progress
0 1 0 1 up movement in progress
0 1 1 1 an auto move is in progress
1 0 0 0 runaway alarm active
1 0 0 1 jammed alarm active
1 0 1 0 limit alarm active
1 1 0 0 drive alarm active. This is
triggered by an overcurrent
condition.
byte 29 : polarization movement status - binary
data
7 6 5 4 3 2 1 0
0 0 1 0 $ 0 0 _ _
0 0 no polarization movement
0 1 cw jog in progress
1 0 ccw jog in progress
1 1 go to H or V in progress
bytes 30-31: These bytes are used to encode the alarm
code. The alarm code (a byte value)
specifies the alarm condition that is
presently active. See the table below for
the various alarm codes.
byte 30 : least significant nibble of alarm status
- binary data
7 6 5 4 3 2 1 0
0 0 1 0 $ _ _ _ _ least significant nibble
a a a a of the alarm code
3 2 1 0
byte 31 : most significant nibble of alarm status -
binary data
7 6 5 4 3 2 1 0
0 0 1 0 $ _ _ _ _ most significant nibble
a a a a of the alarm code
7 6 5 4
Alarm codes - See the system error codes in chapter
6 of the RC2000A manual.
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