ABB A43

Communication with M-Bus
2CMC48001M0201 283 A43/A44
Revision: C User Manual
10.5.18 Set output 1
Setting the state of output 1 is performed 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
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
81
DIF size, 8 bit integer
9
1
40
DIFE unit=1
10
1
FD
VIF extension of VIF codes
11
1
1A
VIFE digital output
12
1
xx
output 1, new state
13
1
xx
CS checksum, calculated from C field to last data
14
1
16
Stop character
10.5.19 Set output 2
Setting the state of output 2 is performed 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
09
L-field, calculated from C field to last user data
3
1
09
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
81
DIF size, 8 bit integer
9
1
80
DIFE unit=0
10
1
40
DIFE unit=2
11
1
FD
VIF extension of VIF codes
12
1
1A
VIFE digital output
13
1
xx
output 2, new state
14
1
xx
CS checksum, calculated from C field to last data
15
1
16
Stop character