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RC4000 Antenna Controller
3.7 Miscellaneous Command
This command performs miscellaneous functions. Here is the format of the command.
byte 0
byte 1
byte 2
byte 3
byte 4
byte 5
byte 6
The sub-command code 'X' can have the following values:
Appendix REM
STX
A
RC4000 address
36h
the miscellaneous command code
'X'
the sub-command code
'Y'
the sub-command parameter
ETX
checksum
'X' = 'R'
This specifies the azimuth or elevation drive reset command.
This accomplishes the same function as the DRIVE RESET
mode of the RC4000: it allows the user to reset the azimuth,
elevation, or polarization alarms. When the sub-command code
is 'R', the sub-command parameter 'Y' must be either 'A', 'E', or
'P' (for azimuth, elevation, or polarization respectively) to specify
which axis will be reset. If the 'P' command is specified, the
command will be accepted only if the Pol Control Equipment
Code CONFIG mode item is set to 1 (ONE PORT) or 2 (TWO
PORT).
'X' = 'T'
This sub-command is used to reset track mode errors (sub-
command parameter 'Y' = R). When the TRACK mode ERROR
sub-mode is active this command will cause the ERROR sub-
mode to terminate. The controller will react as if TRACK mode
was activated via RECALL mode. Note that if a system error is
active (an error message flashing on the bottom row of the
display) the condition which generated the system error must be
rectified or the controller will probably return to the TRACK mode
ERROR sub-mode. This sub-command can also be used to
switch frequency bands when a dual band satellite is being
tracked. A sub-command parameter of 'C' will specify C band
and a sub-command parameter of 'K' will specify K band. The
reply to this command will be a NAK if TRACK mode is not
active, the satellite being tracked was not specified as a dual
band satellite (when the track was initiated via SETUP mode), or
if track polarization movement is not allowed (see byte 32 of the
device status poll command). If polarization movements are not
allowed the controller is either peaking the antenna or performing
a search. Changing the band during a peaking operation or
search can cause the antenna to not accurately peak the
antenna.
'X' = 'S'
This sub-command is used to initiate an automatic antenna
STOW via the RC4000. NOTE: On mounts with no stow
function, reply to this subcommand will be a NAK.
'X' = 'D'
This sub-command is used to initiate an automatic antenna
DEPLOY via the RC4000. NOTE: On mounts with no deploy
function, reply to this subcommand will be a NAK.
REM-20
Remote Control Option
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