Research Concepts RC2000A - Manual (Page 79)

RC2000A Dual Axis Antenna Controller Appendix E Communications Protocol 79
byte 1 : A where A is the RC2000 address
byte 2 : 34h the command code
byte 3 : 'X' the polarization movement code
byte 4 : ETX
byte 5 : checksum
The reply to this command will be the same as the reply to the
status poll query except the command code will be '34h'. Note
that the NAK reply will be sent back to the host if autopol is
enabled or if 'H' or 'V' is specified and there are no satellites
available in the RC 2000 memory. */
/* MISCELLANEOUS COMMAND **
This command performs miscellaneous functions. Here is the format
of the command.
byte 0 : STX
byte 1 : A where A is the RC2000 address
byte 2 : 36h the miscellaneous command code
byte 3 : 'X' the sub-command code
byte 4 : 'Y' the sub-command parameter
byte 5 : ETX
byte 6 : checksum
The sub-command code 'X' can have the following values
...
'X' = 'R' This specifies the azimuth or elevation
drive reset command. This accomplishes
the same function as the RESET mode of
the RC 2000: it allows the user to reset
the solid state drive circuits if an
azimuth or elevation alarm has been
detected. 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 RC2000A is
configured for use with the optional
polarization control motor.
'X' = 'P' This sub-command allows the host to
enable or disable the autopol mode. If
the sub-command is 'P' the sub-command
parameter 'Y' must either be 'N' or 'F'
(for autopol oN or ofF, respectively).
The reply to this command will be the same as the reply to the
status poll query except the command code will be '36h'. */
/* C PROGRAM **
A C program has been written which allows a user to exercise the
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