
Falcon MJ M-Bus Operating instructions
05/18 Generation 1.2
Page 19 of 38
80
DR12
DIF (Manufacturerspecific)
0Fh
81
DR12
PBIT
xxh
82
Checksum
xxh
D
LL
83
Stop
Stop byte
16h
4.2.2
Long
– telegram (for Modules with Firmware 1.0.3 or older)
Long telegram with monthly values.
Frame 1:
RSP-UD (M-Bus)
OMS M-Bus frame
Meter
example
Layer
Byte No
Field Name Content
Bytes
[hex]
1
Start
Start byte
68h
D
at
a
Lin
k
Layer
(DLL)
2
L Field
Length of data (xx bytes)
xxh
3
L Field
Length of data (xx bytes)
xxh
4
Start
Start byte
68h
5
C Field
Respond user data
08h
6
A-Field
Secondary addressing mode
FDh
7
CI Field
72h (long header)
72h
Tr
an
sp
or
t
Layer
(TP
L)
8
Ident.Nr.
Ident No LSB (BCD)
78h
9
Ident.Nr.
Ident No (BCD)
56h
10
Ident.Nr.
Ident No (BCD) (=12345678)
34h
11
Ident.Nr.
Ident No MSB (BCD)
12h
12
Manufr
Manufacturer code
92h
13
Manufr
Manufacturer code
15h
14
Version
Version (or Generation number)
xxh
15
Device type
Device type (Medium=Water)
07h
16
Access No.
Access number of Meter
2Ah
17
Status
M-Bus state
00h
18
Config Field
no Encryption
00h
19
Config Field
no Encryption
00h
20
DR1
DIF (8 digit BCD)
0Ch
Ap
p
lic
at
ion Layer
(APL)
21
DR1
VIF (Volume l)
13h
22
DR1
Value LSB
73h
23
DR1
Value
42h
24
DR1
Value ( = 28504,273 m³)
50h
25
DR1
Value MSB
28h
26
DR2
DIF (Time at readout; Type F)
04h
27
DR2
VIF (Date, Time)
6Dh
28
DR2
Value LSB
32h