Readout Of Previous Values - ABB A43 User Manual

Communication with M-Bus
1F
C5 16
System sends out request UD2: 10 5B FE 59 16
Meter sends out data telegram 6:
68 54 54 68 08 00 72 34 12 00 00 42 04 20 02 B7 00 00 00 01 FD A5 00 0F
01 FF AB 00 01
D4 20 A9 FF F9 D1 00 3A 23 00 00
4E ED EB 00 00 00 14 15 08 14
DE 40 FD E1 A2 FF F9 D9 00 44 02 00 00 00 00
4E ED EB 00 00 46 13 15 08 14
4E ED EB FF F0 00 00 00 00 16 08 14
0F ;Dif 0F -> No more data exists
26 16

10.4.3 Readout of Previous Values

A read request is performed by sending the following SND_UD to the meter (all
Read request
values are hexadecimal) followed by a REQ_UD2
Byte No.
1
2
3
4
5
6
Byte No.
7
8
9
10
11
12
13-14
15
16
A43/A44
User Manual
Size Value Description
1 68 Start character
1 0A L-field, calculated from C field to last user data
1 0A L-field, repeated
1 68 Start character
1 53/73 C-field, SND_UD
1 xx A-field, address
Size Value Description
1 51 CI-field, data send, LSB first
1 02 DIF size, 2 byte integer
1 EC VIF time point, date, M-Bus data type G
1 FF VIF next byte is manufacturer specific
1 F9 VIF extension of manufacturer specific VIFEs, next
VIFE specifies actual meaning.
1 19 VIFE specifies Previous values
2 xxxx Date (M-Bus data type G, LSB byte sent first)
1 xx CS checksum, calculated from C field to last data
1 16 Stop character
244 2CMC48001M0201
Revision: C