Readout Of Load Profile Data - ABB A43 User Manual

Communication with M-Bus
send out data from the nearest date backward in time. Therefore it is recom-
mended that the system should check the date sent in the telegram to verify that
it is the requested date. If no data is stored in the meter for the specified date, or
for any date backward in time, the telegram will contain no load profile data
(only the interval length).

10.4.1 Readout of Load Profile Data

Read request for a specified date and quantity
A read request for a specified date and quantity is performed by sending the fol-
lowing SND_UD to the meter followed by a REQ_UD2 (all values are hexadec-
imal).
Byte No. Size
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 1
11 1
12 1
13-14 2
15 1
16 1
A43/A44
User Manual
Value Description
68 Start character
0A L-field, calculated from C field to last user data
0A L-field, repeated
68 Start character
53/73 C-field, SND_UD
xx A-field, address
51 CI-field, data send, LSB first
02 DIF size, 2 byte integer
EC VIF time point, date, M-Bus data type G
FF VIFE next byte is manufacturer specific
F9 VIFE extension of manufacturer specific VIFE's, next VIFE
specifies actual meaning.
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
xxxx Date (M-Bus data type G, LSB byte sent first)
xx CS checksum, calculated from C field to last data
16 Stop character
230 2CMC48001M0201
Revision: C