ABB A43 User Manual

Communication with Modbus
A43/A44 132 2CMC48001M0201
User Manual Revision: C
9.7 Demand
Mapping table
Header
Data blocks
Note – Before you can use the information in this chapter you must be familiar with
and understand the information and the concepts described in “Historical Data” on
page - 114.
The following table shows an overview of the mapping table:
Function
Details
Start Reg
Size
(Hex)
Demand
Header
8300
16
Demand
Data block 1
8310
115
Demand
Data block 2
8390
115
Demand
Data block 3
8410
115
Demand
Data block 4
8490
115
Demand
Data block 5
8510
115
Demand
Data block 6
8590
115
Demand
Data block 7
8610
115
The following table describes the header:
Function
Start
Size
Description
Read/
Reg
write
(Hex)
Get next entry
8300
1
Write value 1 to this register to load the
R/W
next block of values and timestamp
Entry number
8301
1
Write to this register to choose an entry
R/W
number to start reading from
Date/Time
8304
3
Write to this register to choose a date/time
R/W
to start reading from
Direction
8307
1
Write to this register to choose the
R/W
direction of reading
The Data blocks contain the history of demand. Data block 1 to 7 have the
same structure. Each block can contain up to 8 channels. Consequently, in a
meter with 50 demand channels, there are 8 channels in each of block 1 to
block 6 and 2 channels in block 7.
The registers of unused channels are filled with 0xFFFF.

ABB A43 Specifications

General

Brand	ABB
Model	A43
Category	Measuring Instruments
Language	English