ABB A43

Communication with Modbus
2CMC48001M0201 145 A43/A44
Revision: C User Manual
Mapping table
Quantity
configuration
registers
Write quantity
configuration
Read quantity
configuration
The following table shows an overview of the mapping table:
Quantity
Details
Start Reg (Hex)
Size
Demand
Quantity configuration
8C30
5
Demand
Level configuration
8C35
4
Demand
Interval configuration
8C39
1
Demand
Sub interval configuration
8C3A
1
Demand
Period configuration
8C3B
1
The following table describes the group of registers for configuring quantities
to store in demand:
Function
Start
Size
Description
Read/
Reg
write
(Hex)
Number of
8C30
1
The number of quantities to store in
R/W
quantities
Demand (up to a maximum of 50)
Quantity number
8C31
1
Current quantity number during read or
R
write of configuration
Quantity
8C32
3
OBIS code for the quantity
R/W
Follow the steps in the table below to configure the set of quantities to store in
demand:
Step
Action
1
Write the number of quantities that shall be configured to the Number of
quantities register. This is a value between 1 and 50.
2
Write the OBIS code for the first quantity to the Quantity registers.
3
Repeat step 2 for all quantities that shall be used, i.e. the same number of times
as the value written in step 1.
Follow the steps in the table below to read the current configuration of
quantities to store in demand:
Step
Action
1
Read the Number of quantities register to find out how many quantities are
used.
2
Read from the Quantity registers to get the OBIS code for the first quantity.
3
Repeat step 2 for each quantity, until all OBIS codes have been read. This
means step 2 shall be performed the same number of times as the value read
from the Number of quantities register