ABB A43 User Manual

Communication with M-Bus
2CMC48001M0201 231 A43/A44
Revision: C User Manual
Read request for a specified date and channel number
A read request for a specified date and channel number is performed by sending
the following SND_UD to the meter followed by a REQ_UD2 (all values are hexa‐
decimal).
Byte No.
Size
Value
Description
1
1
68
Start character
2
1
0D
L-field, calculated from C field to last user data
3
1
0D
L-field, repeated
4
1
68
Start character
5
1
53/73
C-field, SND_UD
6
1
xx
A-field, address
7
1
51
CI-field, data send, LSB first
8
1
02
DIF size, 2 byte integer
9
1
EC
VIF time point, date, M-Bus data type G
10
1
FF
VIFE next byte is manufacturer specific
11
1
F9
VIFE extension of manufacturer specific VIFE's, next VIFE
specifies actual meaning.
12
1
B8
VIFE specifying readout based on channel number
13
1
FF
VIFE next byte is manufacturer specific
14
1
xx
VIFE specifying data channel number
15-16
2
xxxx
Date (M-Bus data type G, LSB byte sent first)
17
1
xx
CS checksum, calculated from C field to last data
18
1
16
Stop character
Read request for a specified date, time and quantity
A read request for a specified date, time and quantity is performed by sending
the following SND_UD to the meter followed by a REQ_UD2 (all values are
hexa-decimal).
Byte No.
Size
Value
Description
1
1
68
Start character
2
1
0E
L-field, calculated from C field to last user data
3
1
0E
L-field, repeated
4
1
68
Start character
5
1
53/73
C-field, SND_UD
6
1
xx
A-field, address
7
1
51
CI-field, data send, LSB first
8
1
0E
DIF size, 12 digit BCD data
9
1
ED
VIF time point, date, M-Bus data type G
10
1
FF
VIFE next byte is manufacturer specific

ABB A43 Specifications

General

Brand	ABB
Model	A43
Category	Measuring Instruments
Language	English