ABB A43

Communication with M-Bus
A43/A44 284 2CMC48001M0201
User Manual Revision: C
10.5.20 Set output 3
Setting the state of output 3 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
C0
DIFE unit=1
10
1
40
DIFE unit=2
11
1
FD
VIF extension of VIF codes
12
1
1A
VIFE digital output
13
1
xx
output 3, new state
14
1
xx
CS checksum, calculated from C field to last data
15
1
16
Stop character
10.5.21 Set output 4
Setting the state of output 4 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
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
81
DIF size, 8 bit integer
9
1
80
DIFE unit=0
10
1
80
DIFE unit=0
11
1
40
DIFE unit=4
12
1
FD
VIF extension of VIF codes
13
1
1A
VIFE digital output
14
1
xx
output 4, new state
15
1
xx
CS checksum, calculated from C field to last data
16
1
16
Stop character