Honeywell FALCON MJ Pulse/M-Bus

Falcon MJ M-Bus Operating instructions
05/18 Generation 1.2
Page 16 of 38
4.1.2 Select Enhanced readout (Long telegram)
SND-UD (M-Bus)
OMS M-Bus frame
Water meter example
Layer
Byte No
Field Name
Content
Bytes [hex]
plain
1
Start
Start byte
68h
Data Link 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
Send user data
53h
6
A-Field
Secondary addressing mode
FDh
7
CI Field
Application Select (long Header)
53h
Transport Layer (TPL)
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)
B1h
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
Subcode
30h
21
Checksum
xxh
DLL
22
Stop
Stop byte
16h