Operating Manual V8.2/03.2017
Non Invasive Road Sensor
54
G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany
19.5.9 Message: Setting of the Threshold
for Road Condition “Wet”
If the water film height is above the threshold
the road condition is identified as “wet”.
Command:
aXW+nnnn!
nnnn: “wet” threshold in µm water film
Response:
aXW+nnnn<CR><LF>
The response to the attempt of setting of an invalid value (30<threshold<500) is
aXWf<CR<<LF>
Example: The “wet” limit shall be set to 200µm
0XW+200!
0XW+200<CR><LF>
19.5.10 Message: Setting of the Road Surface Temperature Offset
The offset is used to calibrate the pyrometric temperature measurement.
Command:
aXO<+/->nn.n!
nn.n: offset in °C
Response:
aXO<+/->nn.n<CR><LF>
The response to the attempt of setting of an invalid value is
aXOf<CR><LF>
Example: The offset shall be set to -3.5°C
0XO-3.5!
0XO-3.5<CR><LF>
19.5.11 Message: Setting of the Road Surface Emissivity
The emissivity setting is used to calibrate the pyrometric temperature measurement.
Command:
aXE+>n.nn!
nn.n: offset in °C
Response:
aXE+n.nn<CR><LF>
The response to the attempt of setting of an invalid value is
aXEf<CR><LF>
Example: The emissivity shall be set to 0.97
0XE+0.97!
0XE+0.97<CR><LF>
19.5.12 Message: Station Reset
The command initiates a station reset.
Command:
aXRr!
Response:
aXRok<CR><LF>
The response is followed by the station reset, i.e. the station will be offline for a few seconds.
Example:
0XRr!
0XRok<CR><LF>
