Configuration options

Elvaco OTC app configuration options

Table 214. All configuration options

Field name (Abbr.)

Description

Default value

Locked device & correct PAK or open device

Locked device & no PAK

Downlink

Metre ID

Meter identification number of the meter. Not configurable.

N/A

Readable

Readable

N/A

Power mode

Used to activate/deactivate the module.

Passive

Readable / Writeable

Readable

N/A

Message format

The message format determines the structure and payload of the telegram sent from the module.

0 (Compact)

Readable / Writeable

Readable

N/A

EcoMode

When activated, 11+1 years of battery-life is guaranteed by adapting the transmit interval of the module to current signal conditions.

On

Readable / Writeable

Readable

Writeable

Maximum daily transmissions

Maximum number of transmissions allowed per day.

Inactive

Readable / Writeable

Readable

Writeable

Date & Time

Date and time set for the meter

Current date/time

Readable / Writeable

Readable

Writeable

Set Time Relative

Adjusts the time of the meter relative to the current time.

N/A

Writeable

N/A

Writeable

Configuration Lock

Locks the module to prevent unauthorized access.

Open

Readable / Writeable

Readable

Writeable

LoRaWAN® settings

Device EUI

Unique module identification number. Not configurable.

Device-unique 64-bit number

Readable

Readable

N/A

Activation type

Sets the way the device joins the LoRaWAN® network.

OTAA

Readable / Writeable

Readable

N/A

Network join

Used to display whether the module has joined the LoRaWAN® network.

N/A

Readable

Readable

N/A

Join EUI

Application ID that determines where data ends up.

0x 00 00 00 00 00 00 00 00

Readable / Writeable

Readable

N/A

Application key

Encryption key for payload data (only applicable in OTAA mode).

Device-unique 128-bit number

Writeable

N/A

N/A

Application session key

Encryption key for payload data (only applicable in ABP mode).

Device-unique 128-bit number

Writeable

N/A

N/A

Device address

Unique address used by the device to identify itself on the LoRaWAN® network (only applicable in ABP mode).

Device-unique 32-bit number

Writeable

N/A

N/A

Network session key

Encryption key for payload data (only applicable in ABP mode).

Device-unique 128-bit number

Writeable

N/A

N/A

Current data rate

The current data rate used for the module

N/A

Readable

Readable

N/A


Downlink configuration options

Table 215. Downlink commands 

Field name

TLV (Type Length Value)

Number of bytes

Configuration

Example

Configuration lock

0x05

0x01

0x00 = Locked

0x01 = Open

0x00050101

(Enables configuration lock)

Transmit interval

(only applier when EcoMode is inactive)

0x06

0x02

0xNumber of minutes (lsByte -> msByte)

0x0006021E00

(Sets the Tx interval to 30 minutes)

Message format

0x07

0x01

Message ID

Example:

0x41 = Message format Compact tariff

NB! For multi-telegram formats, only the first telegram can be selected (select 0x3F for Scheduled Extended+, and not 0x40).

Date & Time

0x11

0x02

0xHHMM

Set Date

0x12

0x03

0xYYMMDD

Set Time Relative

0x13

0x02

0xNumber of minutes

Negative numbers supported.

EcoMode

0x0F

0x01

0x00 = Disable EcoMode

0x01 = Enable EcoMode

MaxDTx

(Maximum daily transmissions)

0x21

0x01

0xNumber of transmissions


Tip

Example: To set the MaxDTx parameter to 24, the following command would be sent by downlink: 0x00 21 01 18

Message formats

CMi4110 has several different message formats, listed in the table below. All data messages from the module will be transmitted on LoRa port 2.

Table 216. Message formats

Message format name

Message ID

Scheduled

Introduced in FW

Standard

0x00

No

1.0.3

Compact

0x01

No

1.0.3

JSON

0x02

No

1.0.3

Scheduled Daily Redundant

0x03

Yes

1.0.3

Scheduled Extended

0x04

Yes

1.0.4

Scheduled Extended+

0x3F + 0x40

Yes

1.0.7

Compact Tariff

0x41

No

1.0.7

Maximum Flow

0x46

No

1.0.8

Scheduled Daily Redundant Tariff

0x47 + 0x48

Yes

1.0.8

Scheduled Monthly

0x49

Yes

1.0.8

Scheduled Daily

0x4A

Yes

1.0.8

Scheduled Daily Extended

0x57 + 0x58

Yes

1.0.9

Scheduled Monthly Extended

0x59 + 0x5A

Yes

1.0.9


Scheduled message formats

Unscheduled message formats

Standard

Table 219. Payload, message format Standard [0x00]

DIB

Field

Size

Data type

Description

1

Energy

6-7 bytes (including DIF/VIF)

BCD8

M-Bus Type A

Energy consumption (MWh, kWh, MJ, GJ)

Mapped to OBIS 6.8

0C06xxxxxxxx = kWh

0C07xxxxxxxx = MWh, 2 decimals

0CFB00xxxxxxxx = MWh, 1 decimal

0CFB01xxxxxxxx = MWh, 0 decimals

0C0Exxxxxxxx = GJ, 3 decimals

0C0Fxxxxxxxx = GJ, 2 decimals

0CFB08xxxxxxxx = GJ, 1 decimal

0CFB09xxxxxxxx = GJ, 0 decimals

If first byte is set to “3C” instead of “0C”, this indicates value during error state

2

Volume

6 bytes (including DIF/VIF)

BCD8

M-Bus Type A

Volume (m3)

Mapped to OBIS 6.26

0C14xxxxxxxx = m3, 2 decimals

0C15xxxxxxxx = m3, 1 decimal

0C16xxxxxxxx = m3, 0 decimals

If first byte is set to “3C” instead of “0C”, this indicates value during error state

3

Power

5 bytes (including DIF/VIF)

BCD6

M-Bus Type A

Power (kW)

Mapped to OBIS 6.4

0B2Bxxxxxx = kW, 3 decimals

0B2Cxxxxxx = kW, 2 decimals

0B2Dxxxxxx = kW, 1 decimal

0B2Exxxxxx = kW, 0 decimals

If first byte is set to “3B” instead of “0B”, this indicates value during error state

4

Flow

5 bytes (including DIF/VIF)

BCD6

M-Bus Type A

Flow (m3/h)

Mapped to OBIS 6.27

0B3Bxxxxxx = m3/h, 3 decimals

0B3Cxxxxxx = m3/h, 2 decimals

0B3Dxxxxxx = m3/h, 1 decimal

0B3Exxxxxx = m3/h, 0 decimals

If first byte is set to “3B” instead of “0B”, this indicates value during error state

5

Fw temp

4 bytes (including DIF/VIF)

BCD4

Forward temperature (°C)

Mapped to OBIS 6.29

0A5Axxxx = °C, 1 decimal

0A5Bxxxx = °C, 0 decimals

If first byte is set to “3A” instead of “0A”, this indicates value during error state

6

Rt temp

4 bytes (including DIF/VIF)

BCD4

Return temperature (°C)

Mapped to OBIS 6.28

0A5Exxxx = °C, 1 decimal

0A5Fxxxx = °C, 0 decimals

If first byte is set to “3A” instead of “0A”, this indicates value during error state

7

Meter ID

6 bytes (including DIF/VIF)

According to M-Bus EN13757-3 identification field

Meter ID

0C78xxxxxxxx

If first byte is set to “3C” instead of “0C”, this indicates value during error state

8

Error flags

5 bytes (including DIF/VIF)

Uint16 M-Bus Type C

Error and warning flags

02FD17xxxx

If first byte is set to “32” instead of “02”, this indicates value during error state


Compact

Table 220. Payload, message format Compact [0x01]

DIB

Field

Size

Data type

Description

1

Energy

6 bytes (including DIF/VIF)

BCD8

M-Bus Type A

Energy consumption (MWh, kWh, MJ, GJ)

Mapped to OBIS 6.8

0C06xxxxxxxx = MWh, 3 decimals =kWh

0C07xxxxxxxx = MWh, 2 decimals

0CFB00xxxxxxxx = MWh, 1 decimal

0CFB01xxxxxxxx = MWh, 0 decimals

0C06xxxxxxxx = kWh

0C0Exxxxxxxx = GJ, 3 decimals

0C0Fxxxxxxxx = GJ, 2 decimals

0CFB08xxxxxxxx = GJ, 1 decimal

0CFB09xxxxxxxx = GJ, 0 decimals

If first byte is set to “3C” instead of “0C”, this indicates value during error state

2

Meter ID

6 bytes (including DIF/VIF)

According to M-Bus EN13757-3 identification field

Meter ID

0C78xxxxxxxx

If first byte is set to “3C” instead of “0C”, this indicates value during error state

3

Error flags

5 bytes (including DIF/VIF)

Uint16 M-Bus Type C

Error and warning flags

02FD17xxxx =Error and warning flags

If first byte is set to “32” instead of “02”, this indicates value during error state


Compact Tariff

Table 221. Payload, message format Compact Tariff [0x41]

Value

Bytes

Type

Example

Comment

Message ID

1

N/A

0x41

Always set to 0x41

Energy

6-7

BCD8

0C06xxxxxxxx = MWh, 3 decimals = kWh

0C07xxxxxxxx = MWh, 2 decimals

0CFB00xxxxxxxx = MWh, 1 decimal

0CFB01xxxxxxxx = MWh, 0 decimals

0C0Exxxxxxxx = GJ, 3 decimals

0C0Fxxxxxxxx = GJ, 2 decimals

0CFB08xxxxxxxx = GJ, 1 decimal

0CFB09xxxxxxxx = GJ, 0 decimals

Heat energy prior to transmission

Tariff 1

7-8

BCD8

0C06xxxxxxxx = MWh, 3 decimals = kWh

0C07xxxxxxxx = MWh, 2 decimals

0CFB00xxxxxxxx = MWh, 1 decimal

0CFB01xxxxxxxx = MWh, 0 decimals

0C0Exxxxxxxx = GJ, 3 decimals

0C0Fxxxxxxxx = GJ, 2 decimals

0CFB08xxxxxxxx = GJ, 1 decimal

0CFB09xxxxxxxx = GJ, 0 decimals

Tariff 2

7-8

BCD8

0C06xxxxxxxx = MWh, 3 decimals = kWh

0C07xxxxxxxx = MWh, 2 decimals

0CFB00xxxxxxxx = MWh, 1 decimal

0CFB01xxxxxxxx = MWh, 0 decimals

0C0Exxxxxxxx = GJ, 3 decimals

0C0Fxxxxxxxx = GJ, 2 decimals

0CFB08xxxxxxxx = GJ, 1 decimal

0CFB09xxxxxxxx = GJ, 0 decimals

Tariff 3

8

BCD8

0C06xxxxxxxx = MWh, 3 decimals = kWh

0C07xxxxxxxx = MWh, 2 decimals

0CFB00xxxxxxxx = MWh, 1 decimal

0CFB01xxxxxxxx = MWh, 0 decimals

0C0Exxxxxxxx = GJ, 3 decimals

0C0Fxxxxxxxx = GJ, 2 decimals

0CFB08xxxxxxxx = GJ, 1 decimal

0CFB09xxxxxxxx = GJ, 0 decimals

Meter ID

6

BCD8

0C78xxxxxxxx (serial number)or

0C79xxxxxxxx (customer number)

Serial number or customer number depending on configuration

Error flags

5

INT16

02FD17xxxx

Error flags prior to transmission


JSON

For message format JSON, the data is presented in a plain text format.

Table 222. Fields, message format JSON [0x02]

Field

Description

Energy

Energy consumption

Unit

Unit of energy consumption

Meter ID

Identification number of the meter in which the module is mounted.


Below shows an example of a telegram sent using the JSON message format.

{"E":12345.678","U":"MWh","ID":87654321}

Maximum Flow

Table 223. Payload, message format Maximum flow [0x46]

Value

Bytes

Type

Example

Comment

Message ID

1

N/A

0x46

Always set to 0x46

Heat energy

6-7

BCD8

0C06xxxxxxxx = MWh, 3 decimals = kWh

0C07xxxxxxxx = MWh, 2 decimals

0CFB00xxxxxxxx = MWh, 1 decimal

0CFB01xxxxxxxx = MWh, 0 decimals

0C0Exxxxxxxx = GJ, 3 decimals

0C0Fxxxxxxxx = GJ, 2 decimals

0CFB08xxxxxxxx = GJ, 1 decimal

0CFB09xxxxxxxx = GJ, 0 decimals

Heat energy prior to transmission

Energy at due date

7-8

BCD8

8C0106xxxxxxxx = MWh, 3 decimals = kWh

Energy at end of previous month

Max flow

6

BCD6

9B013Bxxxxxx = m3 /h, 3 decimals

Maximum flow last month

Max value encoded with function field set to max (0b01) and then storage number 2 using using DIFE = 0x01

Timestamp of max flow

6

INT 32

046Dxxxxxxxx

Timestamp when maximum flow was registered.

M-Bus Type F date

Return temp

4

BCD4

0A5Exxxx = °C, 1 decimal

0A5Fxxxx= °C, 0 decimals

Return temperature read prior to transmission

Meter ID

6

BCD8

0C78xxxxxxxx (serial number)

or

0C79xxxxxxxx (customer number)

Serial number or customer number depending on configuration

Error flags

5

INT16

02FD17xxxx

Error flags prior to transmission


Scheduled message formats

Scheduled Daily

Table 224. Payload, message format Scheduled Daily [0x4A]

Value

Bytes

Type

Example

Comment

Message ID

1

N/A

0x4A

Always set to 0x4A

Energy at 24:00

6-7

BCD8

4C06xxxxxxxx = MWh, 3 decimals = kWh

4C07xxxxxxxx = MWh, 2 decimals

4CFB00xxxxxxxx = MWh, 1 decimal

4CFB01xxxxxxxx = MWh, 0 decimals

4C0Exxxxxxxx = GJ, 3 decimals

4C0Fxxxxxxxx = GJ, 2 decimals

4CFB08xxxxxxxx = GJ, 1 decimal

4CFB09xxxxxxxx = GJ, 0 decimals

Energy at midnight

Storage nr 1 used

Fwd temp

4

BCD4

0A5Axxxx = °C, 1 decimal

0A5Bxxxx = °C, 0 decimals

Value read just prior to transmission.

Rtn temp

4

BCD4

0A5Exxxx = °C, 1 decimal

0A5Fxxxx = °C, 0 decimals

Value read just prior to transmission.

Meter ID

6

BCD8

0C78xxxxxxxx (serial number)

or

0C79xxxxxxxx (customer number)

Serial number or customer number depending on configuration

Date & Time

6

INT32

046Dxxxxxxxx

Date and Time (Type F)

Error flags

5

INT16

02FD17xxxx

Error flags prior to transmission


Scheduled Daily Extended

The Scheduled Daily Extended message format is developed to comply with customer with high data privacy demands. Apart from several other message formats, current values are not sent. Instead, the meter log is utilized to get values from the last day or month. This e.g. means that the same daily value will be repeated throughout the day if sent multiple times (which in turn will increase the probability of receiving the message). Due to size limitations, this message format is divided into two telegrams.

Note

Values from daily log are taken from the value read out at midnight and then stored in RAM in the module to be used when sent. Before midnight values are stored (after boot-up) no values are sent on these data points.

Note

Primary Energy refers to Heat energy when module is installed in a Heat or Combined (Heat+Cooling) meter. Primary Energy is Cooling in a Cooling meter.

Secondary Energy is Cooling energy in a Combined meter. In pure Heat and Cooling meters it is the contents of the Tariff 1 register.

Table 225. Telegram 1 - Scheduled Daily Extended [0x57]

Field

Size (bytes)

Data type

Example

Comment

Message ID

1

N/A

57

Always 0x57

Meter ID

6

BCD8

0C7840459271 (Fabrication no 71924540)

Meter serial number

Date part of reporting date (daily log)

4

INT16

Date (M-Bus Type G)

Example: 426C1A36 (2024-06-26)

Date of midnight value for the last midnight. This is the date at 00:00, so typically it is the date of “today” when the data is sent.Storage no 1 used for daily value

Note: this date is not compensated to be sent in UTC since it is only a date. It is the date stored in the meter, which may be local time, not UTC.

Primary energy at reporting date (daily log)

6–7

BCD8

4C06xxxxxxxx = MWh, 3 decimals

Storage no 1 is used for daily values

Secondary energy or Tariff 1 at reporting date (daily log)

7-8

BCD8

CC100678563412 = 12345678 kWh

Storage nr 1 is used for daily values.

Tariff 1 set for secondary energy.

Volume at reporting date (daily log)

6

BCD8

Volume (m³)

4C14xxxxxxxx = m³, 2 decimals

4C15xxxxxxxx = m³, 1 decimal

4C16xxxxxxxx = m³, 0 decimals

Storage no 1 is used for daily values

Power at reporting date (daily log)

5

BCD6

Power (kW)

4B2Bxxxxxx = kW, 3 decimals

4B2Cxxxxxx = kW, 2 decimals

4B2Dxxxxxx = kW, 1 decimal

4B2Exxxxxx = kW, 0 decimals

Storage no 1 is used for daily values

Flow at reporting date (daily log)

5

BCD6

Flow (m³/h)

4B3Bxxxxxx = m³/h, 3 decimals

4B3Cxxxxxx = m³/h, 2 decimals

4B3Dxxxxxx = m³/h, 1 decimal

4B3Exxxxxx = m³/h, 0 decimals

Storage no 1 is used for daily values


Table 226. Telegram 2 - Scheduled Daily Extended [0x58]

Field

Size (bytes)

Data type

Example

Comment

Message ID

1

N/A

58

Always 0x58

Meter ID

6

BCD8

0C7840459271 (Fabrication no 71924540)

Meter serial number

Date part of reporting date

4

INT16

Date (M-Bus Type G)

Example: 426C1A36 (2024-06-26)

Storage no 1 used for daily value

Note: this date is not compensated to be sent in UTC since it is only a date. It is the date stored in the meter, which may be local time, not UTC.

Fw temp at reporting date (daily log)

4

BCD4

Forward temperature (°C)

4A5Axxxx = °C, 1 decimal

4A5Bxxxx = °C, 0 decimals

Storage no 1 is used for daily values

Rt temp at reporting date (daily log)

4

BCD4

Return temperature (°C)

4A5Exxxx = °C, 1 decimal

4A5Fxxxx = °C, 0 decimals

Storage no 1 is used for daily values

Date & Time

6

INT32

046Dxxxxxxxx

M-Bus Date and Time Type F

Error flags

5

INT16

02FD17xxxx

Error flags prior to transmission


Scheduled - Daily Redundant

Table 227. Payload, message format Scheduled - Daily Redundant [0x03]

Value

Bytes

Type

Example

Comment

Message ID

1

N/A

0x03

Always set to 0x03

Energy

6

BCD8

4C06xxxxxxxx = MWh, 3 decimals = kWh

4C07xxxxxxxx = MWh, 2 decimals

4CFB00xxxxxxxx = MWh, 1 decimal

4CFB01xxxxxxxx = MWh, 0 decimals

4C0Exxxxxxxx = GJ, 3 decimals

4C0Fxxxxxxxx = GJ, 2 decimals

4CFB08xxxxxxxx = GJ, 1 decimal

4CFB09xxxxxxxx = GJ, 0 decimals

Meter ID

6

BCD8

0C78xxxxxxxx (serial number)

or

0C79xxxxxxxx (customer number)

Serial number or customer number depending on configuration

Date & Time

6

INT32

046Dxxxxxxxx

Date and Time (Type F)

Accumulated energy at 24:00

6

BCD8

4C06xxxxxxxx = MWh, 3 decimals = kWh

4C07xxxxxxxx = MWh, 2 decimals

4CFB00xxxxxxxx = MWh, 1 decimal

4CFB01xxxxxxxx = MWh, 0 decimals

4C0Exxxxxxxx = GJ, 3 decimals

4C0Fxxxxxxxx = GJ, 2 decimals

4CFB08xxxxxxxx = GJ, 1 decimal

4CFB09xxxxxxxx = GJ, 0 decimals

Error flags

5

INT16

02FD17xxxx

Error flags prior to transmission


Scheduled - Daily Redundant Tariff

Message format Scheduled Daily Redundant Tariff is divided in two telegrams due two size restrictions. The telegrams are identified by Message IDs 0x47 and 0x48, and is encoded as M-Bus.

Table 228. Payload, message format Scheduled - Daily Redundant Tariff Telegram 1 [0x47]

Value

Bytes

Type

Example

Comment

Message ID

1

N/A

0x47

Always set to 0x47

Energy at 24:00

6-7

BCD8

4C06xxxxxxxx = MWh, 3 decimals = kWh

4C07xxxxxxxx = MWh, 2 decimals

4CFB00xxxxxxxx = MWh, 1 decimal

4CFB01xxxxxxxx = MWh, 0 decimals

4C0Exxxxxxxx = GJ, 3 decimals

4C0Fxxxxxxxx = GJ, 2 decimals

4CFB08xxxxxxxx = GJ, 1 decimal

4CFB09xxxxxxxx = GJ, 0 decimals

Energy at midnight

Storage nr 1 used

Tariff 1 Energyat 24:00

7-8

BCD8

CC1007xxxxxxxx (Storage No 1, Tariff 1)

Fetched energy by module at 24:00.

Coded with Storage 1 and tariff 1 in DIFE.

Tariff 2 Energy at 24:00

7-8

BCD8

CC2007xxxxxxxx (Storage No 1, Tariff 2)

Fetched energy by module at 24:00.

Coded with Storage 1 and tariff 2 in DIFE.

Meter ID

6

BCD8

0C78xxxxxxxx (serial number)

or

0C79xxxxxxxx (customer number)

Serial number or customer number depending on configuration

Date & Time

6

INT32

046Dxxxxxxxx

Date and Time (Type F)

Error flags

5

INT16

02FD17xxxx

Error flags prior to transmission


Table 229. Scheduled Daily Redundant Tariff Telegram 2 [0x48]

Value

Bytes

Type

Example

Comment

Message ID

1

N/A

0x48

Always set to 0x48

Tariff 1 Energy

7-8

BCD8

8C10xxxxxxxx Tariff 1 set in DIFE

Instantaneous readout

Tariff 2 Energy

7-8

BCD8

8C20xxxxxxxx Tariff 2 set in DIFE

Instantaneous readout

Flow

5

BCD6

B3Bxxxxxx = m3/h, 3 decimals

0B3Cxxxxxx = m3/h, 2 decimals 

0B3Dxxxxxx = m3/h, 1 decimal 

0B3Exxxxxx = m3/h, 0 decimals 

Fwd temp

4

BCD4

0A5Axxxx = °C, 1 decimal

0A5Bxxxx = °C, 0 decimals

Rtn temp

4

BCD4

0A5Exxxx = °C, 1 decimal

0A5Fxxxx = °C, 0 decimals

Meter ID

6

BCD8

0C78xxxxxxxx (serial number)

or

0C79xxxxxxxx (customer number)

Serial number or customer number depending on configuration

Date & Time

6

INT32

046Dxxxxxxxx

Date and Time (Type F)


Scheduled Extended

Table 230. Payload, message format Scheduled Extended [0x04]

Value

Bytes

Type

Example

Comment

Message ID

1

N/A

0x04

Always set to 0x04

Energy

6-7

BCD8

0C06xxxxxxx = MWh, 3 decimals = kWh

0C07xxxxxxxx = MWh, 2 decimals

0CFB00xxxxxxxx = MWh, 1 decimal

0CFB01xxxxxxxx = MWh, 0 decimals

0C0Exxxxxxxx = GJ, 3 decimals

0C0Fxxxxxxxx = GJ, 2 decimals

0CFB08xxxxxxxx = GJ, 1 decimal

0CFB09xxxxxxxx = GJ, 0 decimals

Heat energy prior to transmission

Volume

6

BCD8

0C14xxxxxxxx = m3, 2 decimals 

0C15xxxxxxxx = m3, 1 decimal 

0C16xxxxxxxx = m3, 0 decimals

Power

5

BCD6

0B2Bxxxxxx = kW, 3 decimals 

0B2Cxxxxxx = kW, 2 decimals 

0B2Dxxxxxx = kW, 1 decimal 

0B2Exxxxxx = kW, 0 decimals

Flow

5

BCD6

B3Bxxxxxx = m3/h, 3 decimals 

0B3Cxxxxxx = m3/h, 2 decimals 

0B3Dxxxxxx = m3/h, 1 decimal 

0B3Exxxxxx = m3/h, 0 decimals

Fwd temp

4

BCD4

0A5Axxxx = °C, 1 decimal 

0A5Bxxxx = °C, 0 decimals

Rtn temp

4

BCD4

0A5Exxxx = °C, 1 decimal 

0A5Fxxxx = °C, 0 decimals

Meter ID

6

BCD8

0C78xxxxxxxx (serial number)

or

0C79xxxxxxxx (customer number)

Serial number or customer number depending on configuration

Date & time

6

INT32

046Dxxxxxxxx

Date and Time (Type F)

Error flags

5

INT16

02FD17xxxx

Error flags prior to transmission


Scheduled Extended+

The data message of message format Scheduled mode-extended + contains three tariffs and all the meter data included in the Standard telegram. In addition to these, a timestamp from the meter (meter date/time) is included in each telegram. It also is divided into two telegrams for keeping each telegram below 45 bytes.

Table 231. Payload, message format Scheduled Extended+ Telegram 1 [0x3F]

Value

Bytes

Type

Example

Comment

Message ID

1

N/A

0x3F

Always set to 0x3F

Energy

6-7

BCD8

0C06xxxxxxxx = MWh, 3 decimals = kWh

0C07xxxxxxxx = MWh, 2 decimals

0CFB00xxxxxxxx = MWh, 1 decimal

0CFB01xxxxxxxx = MWh, 0 decimals

0C0Exxxxxxxx = GJ, 3 decimals

0C0Fxxxxxxxx = GJ, 2 decimals

0CFB08xxxxxxxx = GJ, 1 decimal

0CFB09xxxxxxxx = GJ, 0 decimals

Heat energy prior to transmission

Tariff 1

7-8

BCD8

0C06xxxxxxxx = MWh, 3 decimals = kWh

0C07xxxxxxxx = MWh, 2 decimals 0CFB00xxxxxxxx = MWh, 1 decimal

0CFB01xxxxxxxx = MWh, 0 decimals

0C0Exxxxxxxx = GJ, 3 decimals

0C0Fxxxxxxxx = GJ, 2 decimals

0CFB08xxxxxxxx = GJ, 1 decimal

0CFB09xxxxxxxx = GJ, 0 decimals

Tariff 2

7-8

BCD8

0C06xxxxxxxx = MWh, 3 decimals = kWh

0C07xxxxxxxx = MWh, 2 decimals

0CFB00xxxxxxxx = MWh, 1 decimal

0CFB01xxxxxxxx = MWh, 0 decimals

0C0Exxxxxxxx = GJ, 3 decimals

0C0Fxxxxxxxx = GJ, 2 decimals

0CFB08xxxxxxxx = GJ, 1 decimal

0CFB09xxxxxxxx = GJ, 0 decimals

Tariff 3

8

BCD8

0C06xxxxxxxx = MWh, 3 decimals = kWh

0C07xxxxxxxx = MWh, 2 decimals

0CFB00xxxxxxxx = MWh, 1 decimal

0CFB01xxxxxxxx = MWh, 0 decimals

0C0Exxxxxxxx = GJ, 3 decimals

0C0Fxxxxxxxx = GJ, 2 decimals

0CFB08xxxxxxxx = GJ, 1 decimal

0CFB09xxxxxxxx = GJ, 0 decimals

Meter ID

6

BCD8

0C78xxxxxxxx (serial number)

or

0C79xxxxxxxx (customer number)

Serial number or customer number depending on configuration

Date & time

6

INT32

046Dxxxxxxxx

Date and Time (Type F)


Table 232. Scheduled Extended+ Telegram 2 [0x40]

Value

Bytes

Type

Example

Comment

Message ID

1

N/A

0x40

Always set to 0x40

Volume

6

BCD8

0C14xxxxxxxx = m3, 2 decimals 

0C15xxxxxxxx = m3, 1 decimal 

0C16xxxxxxxx = m3, 0 decimals

Power

5

BCD6

0B2Bxxxxxx = kW, 3 decimals

0B2Cxxxxxx = kW, 2 decimals 

0B2Dxxxxxx = kW, 1 decimal 

0B2Exxxxxx = kW, 0 decimals

Flow

5

BCD6

B3Bxxxxxx = m3/h, 3 decimals 

0B3Cxxxxxx = m3/h, 2 decimals 

0B3Dxxxxxx = m3/h, 1 decimal 

0B3Exxxxxx = m3/h, 0 decimals

Fwd temp

4

BCD4

0A5Axxxx = °C, 1 decimal 

0A5Bxxxx = °C, 0 decimals

Rtn temp

4

BCD4

0A5Exxxx = °C, 1 decimal 

0A5Fxxxx = °C, 0 decimals

Meter ID

6

BCD8

0C78xxxxxxxx (serial number)

or

0C79xxxxxxxx (customer number)

Serial number or customer number depending on configuration

Date & time

6

INT32

046Dxxxxxxxx

Date and Time (Type F)

Error flags

5

INT16

02FD17xxxx

Error flags prior to transmission


Scheduled Monthly

Table 233. Payload, message format Scheduled Monthly [0x49]

Value

Bytes

Type

Example

Comment

Message ID

1

N/A

0x49

Always set to 0x49

Energy at due date

7-8

BCD8

8C0106xxxxxxxx = MWh, 3 decimals = kWh

Energy at end of previous month

Meter ID

6

BCD8

0C78xxxxxxxx (serial number)

or

0C79xxxxxxxx (customer number)

Serial number or customer number depending on configuration

Date & Time

6

INT32

046Dxxxxxxxx

Date and Time (Type F)

Error flags

5

INT16

02FD17xxxx

Error flags prior to transmission


Scheduled Monthly Extended

The Scheduled Monthly Extended message format is developed to comply with customer with high data privacy demands. Apart from several other message formats, current values are not sent. Instead, the meter log is utilized to get values from the last day or month. This e.g. means that the same monthly value will be repeated throughout a month. Due to size limitations, this message format is divided into two telegrams.

Note

Monthly values are taken from the meter’s logger memory. If they are not present, the corresponding data points are marked as “value during error state”.

Values from daily log are taken from the value read out at midnight and then stored in RAM in the module to be used when sent. Before midnight values are stored (like after boot-up) no values are sent on these data points.

Note

Primary Energy refers to Heat energy when module is installed in a Heat or Combined (Heat+Cooling) meter. Primary Energy is Cooling in a Cooling meter.

Secondary Energy is Cooling energy in a Combined meter. In pure Heat and Cooling meters it is the contents of the Tariff 1 register.

Table 234. Telegram 1 - Payload message format Scheduled Monthly Extended [0x59]

Field

Size (bytes)

Data type

Example

Comment

Message ID

1

N/A

59

Always 0x59

Meter ID

6

BCD8

0C7840459271 (Fabrication nr 71924540)

Meter serial number

Date part of due date

5

INT32

Date (M-Bus Type G), e.g. 82016C1A36 → 2024-06-26

Storage no 2 for monthly value.

Note: This date is not compensated to be sent in UTC since it is only a date. It is the date stored in the meter, which may be local time, not UTC.

Primary energy at due date

7–8

BCD8

8C0106xxxxxxxx = MWh, 3 decimals = kWh

Energy at end of previous month.

Storage no 2 is used for monthly value.

Secondary energy or Tariff 1 at due date

7-8

BCD8

8C110678563412 = 12345678 kWh

Secondary energy at end of previous month or Tariff 1 energy.

Storage nr 2 for monthly value

Volume at due date

7

BCD8

8C0114xxxxxxxx = m3, 2 decimals

Storage no 2 for monthly value.

Power at due date

6

BCD6

8B012Bxxxxxx = kW, 3 decimals

Storage no 2 for monthly value.


Table 235. Telegram 2 - Payload message format Scheduled Monthly Extended [0x5A]

Field

Size (bytes)

Data type

Example

Comment

Message ID

1

N/A

5A

Always 0x5A

Meter ID

6

BCD8

0C7840459271 (Fabrication no 71924540)

Meter serial number

Date part of due date

4

INT16

Date (M-Bus Type G), e.g. 426C1A36 → 2024-06-26

Date of midnight value for the last midnight. This is the date at 00:00, so typically it is the date of “today” when the data is sent. Storage no 1 for daily value.

Note: This date is not compensated to be sent in UTC since it is only a date. It is the date stored in the meter, which may be local time, not UTC.

Flow at due date (yesterday)

5

BCD6

4B3Bxxxxxx

Flow from previous day, stored in module RAM at midnight (local time). Storage no 1 for daily values.

Fw temp at due date (yesterday)

4

BCD4

4A5Axxxx = °C, 1 decimal; 4A5Bxxxx = °C, 0 decimals

Forward temperature from previous day, stored in module RAM at midnight (local time). Storage no 1 for daily values.

Rt temp at due date (yesterday)

4

BCD4

4A5Exxxx = °C, 1 decimal; 4A5Fxxxx = °C, 0 decimals

Return temperature from previous day, stored in module RAM at midnight (local time). Storage no 1 for daily values.

Max. flow rate in the last completed month

6

BCD6

DB013Bxxxxxx

Maximum flow last month. Storage no 3 is used for max value last month. DIF function field set to 0b01 (“maximum” value).

Date of max flow

4

INT16

Date (M-Bus Type G), e.g. C2016C1A36 → 2024-06-26

Storage no 3 is used for max value last month.

Note: this date is not compensated to be sent in UTC since it is only a date. It is the date stored in the meter, which may be local time, not UTC.

Date & Time

6

INT32

046D002B2735 → 2025-05-07 11:00:00

Date and Time (M-Bus Type F)

Error flags

5

INT16

02FD17xxxx

Error flags prior to transmission


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