Ascension laserBIRD, Инструкция по установке и эксплуатации

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4: Software Operation: Tools for Successful Tracking
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RS232 Commands
Each RS232 command consists of a single command byte followed by N command data bytes ,
where N depends upon the command. A command is an 8-bit value which the host transmits to
the Bird (laserBIRD).
The RS232 command format is as follows:
MS BIT LS BIT
Stop 7 6 5 4 3 2 1 0 Start
RS232
Command
1 BC7 BC6 BC5 BC4 BC3 BC2 BC1 BC0 0
where BC7-BC0 is the 8-bit command value (see RS232 Command Reference)
and the MS BIT (Stop = 1) and LS BIT (Start = 0) refers to the bit values that the UART
in your computer's RS232 port automatically inserts into the serial data stream.
The RS232 command data format is as follows:
MS BIT LS BIT
Stop 7 6 5 4 3 2 1 0 Start
RS232
Data
1 BD7 BD6 BD5 BD4 BD3 BD6 BD1 BD0 0
where BD7-BD0 is the 8-bit data value associated with a given command.
Command Summary
The following summarizes the action of each RS232 command. The details of command usage are
presented later in this chapter in the section entitled 'RS232 Command Reference'.
Command Name Description
ANGLES Data record contains 3 rotation angles.
ANGLE ALIGN Aligns Bird to reference direction.
BORESIGHT Aligns sensor to the reference frame
BORESIGHT REMOVE Remove the sensor BORESIGHT
CHANGE VALUE Changes the value of a selected Bird system parameter
.