ABB A43

Communication with M-Bus
2CMC48001M0201 233 A43/A44
Revision: C User Manual
Byte No.
Size
Value
Description
22
1
xx
CS checksum, calculated from C field to last data
23
1
16
Stop character
Read request for specified date, time, quantity and phase number
A read request for a load profile, quantities with phase no. specified is
performed by sending the following SND_UD to the meter followed by a
REQ_UD2 (all values are hexadecimal).
Byte No.
Size
Value
Description
1
1
68
Start character
2
1
10
L-field, calculated from C field to last user data
3
1
10
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 and time
10
1
FF
VIFE specifying next byte is manufacturer specific
11
1
F9
VIFE extension of manufacturer specific VIFE's, next VIFE
specifies actual meaning.
12
1
xx
VIFE specifies data requested:
10: Active import energy register values at end of interval
12: Reactive import energy register values at end of interval
14: Input 1 register values at end of interval
16: Input 2 register values at end of interval
1C: Active export energy register values at end of interval
1E: Reactive export energy register values at end of interval
20: Apparent import energy register values at end of interval
22: Apparent export energy register values at end of interval
24: Input 3 register values at end of interval
26: Input 4 register values at end of interval
28: Current average values per interval
29: Voltage average values per interval
2A: THD voltage average values per interval
2B: THD current average values per interval
2C: Power factor average values per interval
13
1
FF
VIFE next byte is manufacturer specific
14
1
xx
VIFE specifying phase number (L1,L2,L3,L1-L2,L2-L3,L1-L3 or
N)
15-20
6
xxxxxxxxxxxx
Time/date (sec:min:hour / day-month-year
21
1
xx
CS checksum, calculated from C field to last data
22
1
16
Stop character