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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]. Usually [m3], Vmeas
2	Electricity. Used usually for electricity meter index. Main energy index (register 1.8.0). 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 gas. Used usually for gas meters. Usually expressed in normalized [m3], Vnorm
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	Gas 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
28	Displacement or speed, [mm/day]
29	Fluorimeter tracer #1 (LED 1). concentration ppb
30	Fluorimeter tracer #2 (LED 2). concentration ppb
31	Fluorimeter tracer #3 (LED 3). concentration ppb
32	Oxygen dissous. Usually expressed in [mg/L]
33	MES - Matieres en suspension [g/L]
34	Oil. Used usually for oil index / for mazout. Usually expressed in liter [l]
35	Electric consumption per 15 minutes. [kWh]
36	Electric production per 15 minutes. [kWh]
37	Cost, coût [CHF, USD]

43	VnormDist : Correcteur de gaz, volume normalisé en erreur (disturbance)

60	System time [s] UNIX_TIMESTAMP
61	Number of active errors
62	Number of uncleared, active errors
63	Backflow index [m3]
64	Power [kW]
65	Manufacturer serial number
66	Alarm state or digital (binary) state
67	Module Temperature [°C]
68	Meter Battery Remaining [day]
69	Operating hours [hour]
70	Error hours [hour]
71	Error/Alarms
72	Customer serial number
73	Manufacturer code (see next table)
74	Version
75	Device type: 7 = water
76	Access number
77	Status
78	Signature
79	Customer location
80	Etiage [0:100]
81	Temps de retour
82	Maximum index
83	Module peak temperature [°C]
84	Peak flow
85	Minimum flow
86	Overload duration
86	Total overload duration
87	Return temperature [°C]


102	validated Electricity after TI (intensity transformator). Usually expressed in [kWh]
103	validated temperature
107	validated rain
113	Normalized gas consumption. delta_Vnorm. Nm3
115	validated flow
116	Average flow on 7 days. Débit moyen sur 7 jours (Q7JM)

201	Electricity. Used usually for electricity meter index. First tariff energy index (register 1.8.1). Usually expressed in [kWh]
202	Electricity. Used usually for electricity meter index. Second tariff energy index (register 1.8.2). Usually expressed in [kWh]
203	Electricity. Used usually for electricity meter index. Production main energy index (register 2.8.0). Usually expressed in [kWh]
204	Electricity. Used usually for electricity meter index. Production first tariff energy index (register 2.8.1). Usually expressed in [kWh]
205	Electricity. Used usually for electricity meter index. Production second tariff energy index (register 2.8.2). Usually expressed in [kWh]

207	Rain forecast [mm] during the next 24h. timestamp : time of forecast
217	Rain forecast [mm] during the +24h to +48h. timestamp : time of forecast

255	means "undefined media"

500	TDS stores this data even if the M-Bus Status byte is not equal to 0. Water. Used usually for water meter index. Usually expressed in cubic meter [m3]
503	TDS stores this data even if the M-Bus Status byte is not equal to 0. Temperature. Usually expressed in Celsius degrees [°C]
512	TDS stores this data even if the M-Bus Status byte is not equal to 0. Heat energy. Used usually for heat meters. Usually expressed in [kWh]
516	TDS stores this data even if the M-Bus Status byte is not equal to 0. Flow. Instantaneous value usually expressed in [liter/sec] or [m3/h]
587	TDS stores this data even if the M-Bus Status byte is not equal to 0. Return temperature [°C]

other 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 (Integra)
14	Hydrometer
15	Xemtec
16	Swisslogix
17	Elgas
18	Diehl
19	Kamstrup
20	iMeter
21	Zenner
22	Sensus (IPerl)
23	Danfoss
24	ELR Elster
25	JAN Janitza
26	Finder

255	means "undefined manufacturer"
other values	--reserved for future use---