References; Actual Values; Data Input/Outputs; Control Of Drive Outputs Through Efb - ABB ACS880 Firmware Manual

712 Fieldbus control through the embedded fieldbus interface (EFB)
selection between external control locations 1/2, or fault reset). The drive switches
between its states according to the bit-coded instructions of the CW.
The fieldbus CW is either written to the drive as it is (see parameter
transparent control
profiles (page 713).
The fieldbus Status Word (SW) is a 16-bit or 32-bit packed boolean word. It contains
status information from the drive to the fieldbus controller. The drive SW is either
written to the fieldbus SW as it is or the data is converted. See section
control profiles (page
￭

References

EFB references 1 and 2 are 16-bit or 32-bit signed integers. The contents of each
reference word can be used as the source of virtually any signal, such as the speed,
frequency, torque or process reference. In embedded fieldbus communication,
references 1 and 2 are displayed by
respectively. Whether the references are scaled or not depends on the settings of
58.26 EFB ref1 type
profiles (page 713).
￭

Actual values

Fieldbus actual signals (ACT1 and ACT2) are 16-bit or 32-bit signed integers. They
convey selected drive parameter values from the drive to the master. Whether the
actual values are scaled or not depends on the settings of
58.29 EFB act2 type. See section
￭

Data input/outputs

Data input/outputs are 16-bit or 32-bit words containing selected drive parameter
values. Parameters
from which the master either reads data (input) or to which it writes data (output).

Control of drive outputs through EFB

The address selection parameters of the data input/outputs have a setting with
which the data can be written into a storage parameter in the drive. These storage
parameters are readily selectable as signal sources of the drive outputs.
The desired values of the relay outputs (RO) and digital input/outputs (DIO) can
be written in a 16-bit word into
as the source of those outputs. Each of the analog outputs (AO) of the drive have
a dedicated storage parameter
which are available in the source selection parameters
AO2 source.
word), or the data is converted. See section
713).
3.9 EFB reference 1
and 58.27 EFB ref2
About the control profiles (page
58.101 Data I/O 1
10.99 RO/DIO control
(13.91 AO1 data storage
type. See section
... 58.124 Data I/O 24
word, which is then selected
and
6.5 EFB
About the control
About the
and 3.10 EFB reference 2
About the control
58.28 EFB act1 type
713).
define the addresses
13.92 AO2 data
13.12 AO1 source and
and
storage),
13.22