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Data coming in TDS are processed. To ease data analysis, these data usually get a "media" value which indicate which type of physical parameter these values represents. They also get a "manufacturer" value indicating who has produced the meter

A "media" is an 8-bit unsigned number defined in the table hereafter

Media Description
0 Water. Used usually for water meter index. Usually expressed in cubic meter [m3]
1 Natural gas. Used usually for gas meter index. Usually expressed in cubic meter [m3]
2 Electriciy. Used usually for electricity meter index. Usually expressed in [kWh]
3 Temperature. Usually expressed in Celsius degrees [°C]
4 Relative Humidity (RH). Usually expressed in %
5 Pressure. Usually expressed in [mbar]
6 Filling level. Usually expressed in [m] or in relative value [0:100%]
7 Pluviometry (rain). Usually expressed in [mm]
8 Turbidity. Usually expressed in [NTU]
9 Conductivity. Usually expressed in [uS/cm]
10 Consumption. Index difference during a speficied time interval or integrated value. Usually [m3], delta Vmeas
11 pH
12 Heat energy. Used usually for heat meters. Usually expressed in [kWh]
13 Normalized gaz. Used usually for gas meters. Usually expressed in normalized [m3]
14 Battery voltage. Usually expressed in [V]
15 --reserved---
16 Flow. Instantaneous value usually expressed in [liter/sec] or [m3/h]
17 Voltage. Usually expressed in [mV]
18 Distance. Usually expressed in [mm]
19 Oxygen. Usually expressed in [%/vol]
20 Electric current. Usually expressed in [mA]
21 Rotation angle. Usually expressed in [°]
22 Speed. Usually expressed in [m/s]
23 Average speed. Usually expressed in [m/s]
24 Gaz flow. Instantaneous value [l/s]
25 Electric power. Instantaneous value [W]
26 Consumption. Index difference during a speficied time interval or integrated value. Usually [m3n], delta Vnorm
27 CO2
   
60 System time [s] UNIX_TIMESTAMP
61 Number of active errors
62 Number of uncleared, active errors
63 Backflow index [m3]
64 Power [W]
65 Serial number
66 alarm state
   
255 means "undefined media"
ohter values --reserved for future use---

A "manufacturer" is an 8-bit unsigned number defined in the table hereafter

Manufacturer Description
0 GWF
1 Tetraedre
2 Actraris, Itron
3 Tritschler
4 Landis & Gyr
5 Elster
6 WTW
7 Albillia
8 STS
9 RCT
10 NMEA 0183
11 IEC 1107
12 Nucfilms
13 Aquametro
14 Hydrometer
15 Xemtec
16 Swisslogix
17 Elgas
18 Diehl
19 Kamstrup
20 iMeter
21 Zenner
22 Sensus (IPerl)
23 Danfoss
255 means "undefined manufacturer"
ohter values --reserved for future use---

 




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