ABB A43

Technical Description
A43/A44 70 2CMC48001M0201
User Manual Revision: C
5.9 Previous Values
General
Storing periods
Selectable
quantities
At the end of a defined period, up to 50 configurable channels, which can contain
energy register values, input counter values and currency/CO
2
values, are stored
together with the time/date for the end of the period.
Previous values can be configured via Modbus and EQ-bus communication or
via the buttons on the meter.
Note – Before any previous values can be stored, time/date must be set.
Changing time/date into another period than the pending period will store
the current period and start a new one.
If a power fail occurs that lasts over the end of an ongoing period, the period will
be stored when the meter powers up again and a new period will start. If the
meter have lost time and date/time is not set when the meter powers up again,
previous values will enter a waiting state until time/date is set.
Previous values has 50 channels which can be configured individually via
com-munication. Each channel can store up to 200 periods.
The period length can be a day, a week or a month and can be configured
via Modbus and EQ-bus communication or via the buttons on the meter.
The period date and time is stored as end of period. For instance, if a period starts
2010.01.01 00:00.00 and ends 2010.01.02 00:00.00, then the stored period will
be 2010.01.02 00:00.00.
Stored periods can be read via communication or directly on the display.
If there is no free memory space available, the oldest period will be erased
to make room for the most recent one.
It is possible to erase all stored periods by sending a “Reset Previous
Values” command via communication.
Depending on the meter type all or a subset of the following quantities can
be selected.
ACTIV ENERGY IMPORT TOTAL
ACTIVE ENERGY IMPORT TARIFF3
ACTIVE ENERGY EXPORT TOTAL
ACTIVE ENERGY IMPORT TARIFF4
ACTIVE ENERGY IMPORT L1
REACTIVE ENERGY IMPORT TARIFF1
ACTIVE ENERGY IMPORT L2
REACTIVE ENERGY IMPORT TARIFF2
ACTIVE ENERGY IMPORT L3
REACTIVE ENERGY IMPORT TARIFF3
ACTIVE ENERGY EXPORT L1
REACTIVE ENERGY IMPORT TARIFF4
ACTIVE ENERGY EXPORT L2
REACTIVE ENERGY EXPORT TARIFF1
ACTIVE ENERGY EXPORT L3
REACTIVE ENERGY EXPORT TARIFF2
REACTIVE ENERGY IMPORT TOTAL
REACTIVE ENERGY EXPORT TARIFF3