Operating Manual

IRS31Pro-UMB Operating Manual V10 / 01.2020
G. Lufft Mess- und Regeltechnik GmbH 10
6 Transmission of Measurements
The factory default setting for the transmission of measurements is UMB binary protocol.
You can find an example of a measurement request for the various protocols and a complete summary of
the list of channels (including TLS channels) in the Appendix.
6.1 Measurements
6.1.1 Data Types Used
uint8 unsigned char (8 bit unsigned integer)
uint16 unsigned short (16 bit unsigned integer)
float32 float (32 bit floating-point number according to IEEE-754)
6.1.2 Road Surface Temperature
Sampling rate: adjustable 10, 20, 30, 60s; see section 5.3 Sampling Rate, page 9
Units: normalized, °C; °F
Request channels:
UMB Channel Measuring Range
act min max avg Measured Value Data Type min max Unit
100 105 Road temperature uint16 0 65520 norm value
101 106 Road temperature float32 -40.0 80.0 °C
102 107 Road temperature float32 -40.0 176.0 °F
6.1.3 External Temperature 1 (5cm depth)
Sampling rate: see section 5.3
Units: normalized, °C; °F
Request channels:
UMB Channel Measuring Range
act min max avg Measured Value Data Type min max Unit
110 115 External temperature 1 uint16 0 65520 norm value
111 116 External temperature 1 float32 -40.0 80.0 °C
112 117 External temperature 1 float32 -40.0 176.0 °F
6.1.4 External Temperature 2 (30cm depth)
Sampling rate: see section 5.3
Units: normalized, °C; °F
Request channels:
UMB Channel Measuring Range
act min max avg Measured Value Data Type min max Unit
120 125 External temperature 2 uint16 0 65520 norm value
121 126 External temperature 2 float32 -40.0 80.0 °C
122 127 External temperature 2 float32 -40.0 176.0 °F
6.1.5 Freezing Temperature NaCl
Sampling rate: see section 5.3
Units: normalized, °C; °F
Request channels:
UMB Channel Measuring Range
act min max avg Measured Value Data Type min max Unit
150 155 Freezing temp. NaCl uint16 0 65520 norm value
151 156 Freezing temp. NaCl float32 -40.0 0.0 °C
152 157 Freezing temp. NaCl float32 -40.0 32.0 °F