Wireless M-Bus Receiver Amr Rs485; Wireless M-Bus Data Format; Frame Format; Optional Second Block - Adeunis RF M-Bus AMR Mode D'emploi

Radio Modems Wireless M-Bus AMR - Mode d'emploi / User guide version V1.8.1
To enter command mode and change the configuration, simply activate the RTS (User Guide Module Wireless M-Bus).

9.2.2 Wireless M-Bus receiver AMR RS485

By default, the receiver is configured for T1 mode. Simply connect power and serial port and all T1 Wireless M-Bus frames will be transmitted on
the RS485 serial link (frame format is described in the User Module Guide Wireless M-Bus is available on the website Adeunis RF
).
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Warning, configuration changes can only be made in RS232 mode.
The green LED will be lit in power, and blinks when receiving data.

9.3. Wireless M-Bus DATA format

In each operating modes, the data format are the same. We are providing in the following lines, a short summary of the packet data format.
The link layer use IEC 60870-5-2 format class FT3.

9.3.1 Frame format

L-field
1 Byte

9.3.2 Optional second block

CI-field
1 Byte

9.3.3 Optional other block

or (L-9modulo 16) -1 if it is the last block

9.3.4 L : Length field

Length field (L = 0 to 255), which signals the total number of user bytes (excluding the length field and the CRC's).

9.3.5 C : Control Field

For transmit only devices (S1, T1 mode) the Cfield value C=0x44 (send-no-Reply)
In bidriectional mode, the C-field is managed by the module.

9.3.6 M: Manufacturer ID Field

User/manufacturer unique ID of the meters.
If M=ARF, the user/manufacturer must guarantee worldwide uniqueness address. Otherwise, the address is unique at least within maximum
transmission range.

9.3.7 A : Address

Unique address, user/manufacturer must guarantee it.

9.3.8 CI : Control Information Field

Must be set according to EN13757-3.
C-field
1 Byte
DATA
or (L-9modulo 16) -1 if it is the last block
DATA
16
M-field
2 Bytes
16
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A-field CRC-field
6 Bytes 2 Bytes
CRC-field
2 Bytes
CRC-field
2 Bytes
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