Operating Manual
IRS31Pro-UMB Operating Manual V10 / 01.2020
G. Lufft Mess- und Regeltechnik GmbH 35
950 State of coupling uint8
0: Off
1: On, freezing t
emperature 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.