IRS31Pro-UMB
Operating Manual V10 / 01.2020
G. Lufft Mess- und Regeltechnik GmbH
35
950
State of coupling
uint8
0: Off
1: On, freezing temperature of an
ARS31(Pro)-UMB received
2: On, freezing temperature of an
ARS31(Pro)-UMB not received
Supply Voltage
10000
Supply Voltage
float32
0
18,05
V
Resistance
32210
resistive_avg
float32
0
1.0E12
Ohm
The following channels are available specifically for data requests for further processing in TLS format.
These channels are available in binary protocol only.
DE
Type
UMB
Channel
Meaning
Format Range
Resolution Coding
49
1049
Result message
Road surface temperature
FBT
16 bit
-30 … +80°C 0.1°C
80.0
= 800d
=
0320h
0.0
= 0d
=
0000h
-0.1
= -1d
=
FFFFh
-30.0
= -300d = FED4h
Error (32767d = 7FFF)
52
1052
Result message
Residual salt (NaCl)
RS
8 bit
0 … 100%
1%
0
= 0d
=
00h
100
= 100d
=
64h
Error (255d = FFh)
65
1065
Result message
Freezing temperature (NaCl)
GFT
16 bit
-30 … 0°C
0.1°C
0.0
= 0d
=
0000h
-0.1
= -1d
=
FFFFh
-30.0 = -300d = FED4h
Error (32767d = 7FFF)
67
1067
Result message
Below-ground temperature at
depth 1
TT1
(5 cm)
16 bit
-30 … +80°C 0.1°C
80.0
= 800d
=
0320h
0.0
= 0d
=
0000h
-0.1
= -1d
=
FFFFh
-30.0
= -300d = FED4h
Error (32767d = 7FFF)
68
1068
Result message
Below-ground temperature at
depth 2
TT2
(0…30 cm)
16 bit
-30 … +80°C 0.1°C
80.0
= 800d
=
0320h
0.0
= 0d
=
0000h
-0.1
= -1d
=
FFFFh
-30.0
= -300d = FED4h
Error (32767d = 7FFF)
69
1069
Result message
Below-ground temperature at
depth 3
TT3
(30cm)
16 bit
-30 … +80°C 0.1°C
80.0
= 800d
=
0320h
0.0
= 0d
=
0000h
-0.1
= -1d
=
FFFFh
-30.0
= -300d = FED4h
Error (32767d = 7FFF)
70
1070
Result message
Road surface condition
FBZ
8 bit
0 … 255
0
Road is completely
dry and free of snow and ice.
1
Road is moist or wet,
or covered with ice or snow
32
Road is wet with
liquid
water
/
aqueous
solution.
64
Road is fully or
partially covered with frozen
water / solid aqueous solution.
65
Road is covered with
snow or slush.
66
Road is covered with
ice (solid, frozen water and
frozen aqueous solution).
67
Frost.
255
Sensor is unable to
determine the road surface
condition due to the prevailing
conditions.
