ABB A43

Communication with Modbus
2CMC48001M0201 155 A43/A44
Revision: C User Manual
Pulse output
configuration
registers
The following table describes the group of registers for configuring the
pulse outputs:
Function
Start
Size
Description
Read/
Reg
write
(Hex)
Pulse output
8C10
1
The instance number of the pulse output
R/W
instance
Port number
8C11
1
The physical I/O port on which the
R/W
pulses are sent out
Energy quantity
8C12
3
The OBIS code for the quantity
R/W
Pulse frequency
8C15
2
The pulse frequency, measured in
R/W
active energy
pulses/kWh with 3 decimals. This is
relevant only if Energy quantity is set to
active energy.
Pulse frequency
8C17
2
The pulse frequency, measured in
R/W
reactive energy
pulses/kvarh with 3 decimals. This is
relevant only if Energy quantity is set to
reactive energy.
Pulse length
8C19
2
The duration of a pulse, measured in
R/W
milliseconds
Turn off pulse
8C1B
1
Write the value 1 to this register to turn
R/W
output
off the chosen pulse output instance
Selectable energy
The table below lists the possible energy quantities to associate with a pulse
quantities
output:
Quantity
OBIS code
Active energy import total
1.0.1.8.0.255
Active energy export total
1.0.2.8.0.255
Reactive energy import total
1.0.3.8.0.255
Reactive energy export total
1.0.4.8.0.255
Write pulse
output
configuration
Follow the steps in the table below to configure the pulse outputs:
Step
Action
1
Choose the pulse output instance to configure by writing a number to the Pulse
output instance register. Allowed values are 1-4.
2
Write to the Port number register to decide to which physical port the pulses are
sent out for the chosen pulse output. Allowed values are 0-4, where 0 means
No Output.
3
Write the OBIS code of the quantity that shall be used for the chosen pulse
output to the Energy quantity registers. Possible OBIS codes are listed above.