ABB A43

Communication with Modbus
2CMC48001M0201 165 A43/A44
Revision: C User Manual
Write special day
configuration
Contents
Register
Byte nr
Description
1
Month
8CD6
0
Day
1
Not used
Day id
8CD7
(Both)
Day ID associated with the special day
Note – All 3 registers in the table above must be written in one operation,
otherwise the values will not take effect.
Follow the steps in the table below to configure the special days:
Step
Action
1
Write the number of special days to use to the Number of special days register.
This is a value between 1 and 50.
2
Write the desired date and day id of the first special to the Special day registers.
3
Repeat step 2 for all special days that shall be used, i.e. the same number of
times as the value written in step 1.
Read special day
configuration
Follow the steps in the table below to read the current special day configuration:
Step
Action
1
Read the Number of special days register to find out how many special days
are used.
2
Read from the Special day registers to get the date and day id for the first
special day.
3
Repeat step 2 for each special day, until all special day configurations have
been read. This means step 2 shall be performed the same number of times as
the value read in step 1.
Note – Step 1 initiates the readout procedure and can NOT be left out, even if
the number of special days used is already known.
Note – The Special day number register can optionally be read together with the
Spe-cial day registers in step 2. The Special day number register holds the current
special day number, starting from 1 after reading the Number of special days
register. It is incremented every time the Special day registers are read.
9.10.7 Daylight Savings Time
General Daylight savings time (DST) can be enabled and if enabled it has a start and end
time that can be defined.