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SF30
Accelerated rangefinder
There is a synchronisation signal that goes into a low state at the instant when a distance measurement is taken. This signal then
goes high just before the result is transmitted on the serial port.
Figure 7 :: An oscilloscope screen capture showing the serial port data on the orange trace
There may be occasions when settings such as the alarm activation distance needs to be changed on the fly and a serial port
command set is provided for this purpose. These commands will allow changes to a subset of the settings available through the USB
port.
Serial port commands are sent as ASCII encoded characters and are formatted as follows:
#Annnnn:
where:
#
indicates the start of a command
A
indicates the command mnemonic
nnnnn
indicates additional values where necessary
:
indicates the end of a command
The baud rate of both the transmitted distances and the received commands is controlled by the "4: Serial port baud rate" setting in
the main menu. This cannot be changed using serial port commands.
SF30 Accelerated laser rangefinder - Product Manual - Revision 4
Product manual
and the synchronisation signal on the blue trace
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© LightWare Optoelectronics (Pty) Ltd, 2015
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