USER'S MANUAL. REMOTE CONTROL COMMANDS SATHUNTER
CONTROL COMMANDS
1 COMMUNICATIONS PROTOCOL
Communication parameters are 115200 dB, 8 bits, no parity and 1 bit STOP. The
communication is done via the USB port.
The communication protocol is:
1. SATHUNTER periodically sends the code XON (11H) to indicate that it is ready
to receive a new command.
2. At this moment, it can be sent a stream. Each stream consists of:
a.
Stream beginning: '*' (2AH).
b.
If the command is interrogative: '?' (3FH).
c.
Character set forming the remote command.
d.
CARRIAGE RETURN indicating the end of the message: (0DH)
3. Once the stream has been sent, it is received an XOFF (13H) indicating to stop
the transmission.
4. Once completed the command, it is sent an ACKNOWLEDGE (06H) code in the
case that the command had been interpreted correctly or a NOT
ACKNOWLEDGE (15H) otherwise.
5. If the sent message requires response, that one is sent after the
ACKNOWLEDGE. The answer should be finish by a CARRIAGE RETURN
(0DH).
6. After this command, the SATHUNTER will send a XON (11H) meaning that is
ready to receive another command.
7. It turns to step 2.
06/2008
REMOTE
SATHUNTER
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