ABB A43

Communication with M-Bus
2CMC48001M0201 291 A43/A44
Revision: C User Manual
Byte No.
Size
Value
Description
12
1
xx
CS checksum, calculated from C field to last data
13
1
16
Stop character
10.5.34 Set tariff source
Tariffs can be controlled by inputs, communication or internal clock.
The tariff source is set by sending the following command (all values are
hexa-decimal). The command is affected by the write protection level set.
Byte No.
Size
Value
Description
1
1
68
Start character
2
1
08
L-field, calculated from C field to last user data
3
1
08
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
01
DIF size, 8 bit integer
9
1
FF
VIF next byte is manufacturer specific
10
1
F9
VIF extension of manufacturer specific VIFE's, next
VIFE specifies actual meaning
11
1
06
VIFE tariff source
12
1
xx
Tariff source (0: Internal clock, 1: Communication
command, 2: Inputs)
13
1
xx
CS checksum, calculated from C field to last data
14
16
Stop character
10.5.35 Set CO2 conversion factor
The co2 conversion factor is set by sending the following command (all values are
hexadecimal). The command is not affected by the write protection level set.
Byte No.
Size
Value
Description
1
1
68
Start character
2
1
0A
L-field, calculated from C field to last user data
3
1
0A
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
04
DIF size, 32 bit integer
9
1
FF
VIF next byte is manufacturer specific
10
1
24
VIFE CO2 conversion factor in g/kWh
11-14
4
xxxxxxxx
CO2 conversion factor