Danfoss SonoMeter 40, SonoMeter 40c Operating guide

Operating guide

SonoMeter 40, SonoMeter 40c Wireless M-Bus protocol description

Table of Contents 1. Description .............................................................................................................................. 1

2. OMS telegram structure ......................................................................................................... 2

3. Main User Data telegram structure ....................................................................................... 2

4. Hours Logger Data telegram structure ................................................................................ 2

5. Days Logger Data telegram structure................................................................................... 3

6. Months Logger Data telegram structure .............................................................................. 3

7. Ye a r s Logger Data telegram structure ................................................................................. 4

8. Definition of the Type F format ............................................................................................. 4

9. Definition of the Type G format ............................................................................................. 4

10. Definition of the Status code ................................................................................................. 4

11. Example of data telegram ...................................................................................................... 4

1. Description Main data:

• Communication type: Wireless M-Bus

• Power: <25 mW (868MHz)

• Transmitting frequency: 868,95 MHz

• Band: 50 kHz

• Protocol: T1 OMS S1 (optional)

• Mode: Mode 5 Mode 7 (optional)

• Encryption: AES-128

• Activation: Self-activated after passed 10L of volume

• Max bytes of data telegram: 255 bytes

• Data telegram structure: Selected according to the data tables below

Operating guide SonoMeter 40, SonoMeter 40c - Wireless M-Bus protocol description

2. OMS telegram structure

3. Main User Data telegram structure

Field Code Byte pos. No. of Bytes Value Description Note

L field 1 1 xx Message length C field 2 1 xx Control Field: indicates ser vice telegram -

M field 3-4 2 D3 10

A field 5-6 -7-8 4 xx xx xx xx Serial number of the device (8-digit) -

Generation 9 1 xx wMbus generation of the device -

Medium 10 1 04

CI field 11 1 xx Control Information -

Count 12 1 xx Progressive count (access number = transmission counter) -

Status by te 13 1 xx Contains flag of alarm -

Signature 14 -15 2 xx xx

AES-verify 16 -17 2 2F 2F

Data xx…xx -

Parameter

Date and Time 04 6D 4 Typ e F 32-bit integer

Date and Time of error starting 34 6D 4 Typ e F 32-bit integer

Error code 34 FD 17 4 - 32-bit integer

Battery operation time 04 20 4 sec 32-bit integer

Working time without error 04 24 4 sec 32-bit integer

Energy for Heating

Energy for Cooling*

Energy of Tariff 1 *

Energy of Tariff 2 *

Volume 04 13 4 0,0 01 m

Volume of Pulse Input 1 * 84 40 13 4 0,0 01 m

Volume of Pulse Input 2 * 84 80 40 13 4 0, 001 m

Power 04 2B 4 W 32-bit integer

Flow rate 04 3B 4 0, 001 m3/h 32-bit integer

Flow Temperature 02 59 2 0.01 °C 16-bit integer

Return Temperature 02 5D 2 0.01 °C 16-bit integer

Temperature Difference 02 61 2 0.01 K 16-bit integer

Serial Number 0C 78 4 - 32-bit integer BCD8

* Depends o n meter’s configuration a nd request

xx…xx xx

Bytes

(DIF VIF)

04 86 3B 04 8E 3B

04 FB 8D 3B

04 86 3C 04 8E 3C

04 FB 8D 3C

84 10 86 3x 84 10 8E 3x

84 10 FB 8D 3x

84 20 86 3x 84 20 8E 3x

84 20 FB 8D 3x

Manufacturer code DFS – Danfoss A/S

Device type 04 – Heating application 0D – Heating / Cooling application

Configuration word (ciphering OMS with profile A: xx xx or not ciphering: 00 00)

Encryption verification field (if the transmission is not enabled, this field is missing)

User Data telegram structure can be selected individually -

xx xx

No. of Data Bytes Units Description

kWh

Mcal

kWh

Mcal

kWh

Mcal

kWh

Mcal

x = B – for Heating energy, x = C – for Cooling energy

32-bit integer

Opt.

4. Hours Logger Data telegram structure

Parameter Bytes (DIF VIF) No. of D ata Bytes Units Description

Logger Date and Time C4 86 03 6D 4 Type F 32-bit integer Average Power C4 86 03 2B 4 W 32-bit integer Average Flow Rate C4 86 03 3B 4 0,0 01 m3/h 32-bit integer Average Flow Temperature C2 86 03 59 2 0 .01 °C 16-bit integer Average Return Temperature C2 86 03 5D 2 0.01 °C 16-bit integer Logger Minimum Flow E4 86 03 3B 4 0,001 m3/h 32-bit integer Logger Maximum Flow D4 86 03 3B 4 0,001 m3/h 32-bit integer Logger Minimum Temperature Difference E2 86 03 61 2 0.01 K 16-bit integer Logger Maximum Temperature Difference D2 86 03 61 2 0.01 K 16-bit integer Logger error code F4 86 03 FD 17 4 - 32-bit integer Logger working time without error C4 86 03 24 4 sec 32-bit integer

* Depends o n meter’s configuration a nd request

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