Geolux LX-80-15, User Manual

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LX-80-15 10 Hz User Manual
40 LX-80-15 10 Hz Oceanographic Radar Sensor
8.4. SDI-12 Protocol
In all commands, ‘a’ represents the device address. Blue rows signal that parameters can be set using
this command.
Supported SDI-12 commands are given in Table 10.
Table 10. SDI-12 commands
Name Command Response Details
Address query ?! a<CR><LF> Device will identify using its SDI-
12 address, default address is 0
Ping sensor a! a<CR><LF> Device will respond if its address
is ‘a’
Address change aAb! b<CR><LF> Device will respond if its address
is ‘a’ with its new address ‘b’
Send identification aI! a13GEOLUX LX-80
fffssssss<CR><LF>
a – address
SDI-12 version – 1.3
vendor identification – GEOLUX
sensor model – LX-80
sensor version – fff, where fff is
firmware version
ssssss - device serial number
Start verification aV! a00001<CR><LF> One value is ready imminently
Send data aD0! a+d<CR><LF> d – verification:
0->not ready , 1->ready
Additional data aD1! .. aD9! a0<CR><LF> No values are returned for addi-
tional data.
Start measurement aM!/aMC! ammm8<CR><LF> 8 values are ready within mmm
seconds
Send data - aM aD0! a+f+f+d+d+d+d+f+f<CR><LF>
a+f+f+d+d+d+d+f+f<CRC><CR>
<LF>
+f – measured relative level
depending on sensor height
+f – measured distance from
sensor to water
+d – measured temperature inside
device
+d – measured water temperature
(on request only)
+d – measured tilt angle of device
in x direction (on request only)
+d – measured tilt angle of device
in y direction (on request only)
+f – SNR of latest measurement
+f - standard deviation of the data
in mm
Additional data aD1! .. aD9! a0<CR><LF>
a0<CRC><CR><LF>
No values are returned for
additional data.