ABB ACS280 Firmware Manual page 356

Fieldbus control through the embedded fieldbus interface (EFB)
356
 Basics of the embedded fieldbus interface
The cyclic communication between a fieldbus system and the drive consists of
16-bit data words or 32-bit data words (with a transparent control profile).
The diagram below illustrates the operation of the embedded fieldbus
interface. The signals transferred in the cyclic communication are explained
further below the diagram.
Fieldbus network
Cyclic communication
CW
2)
REF1
REF2
SW
2)
ACT1
ACT2
I/O 1
I/O 2
I/O 3
...
I/O 69
Acyclic communication
1. See also other parameters which can be controlled through fieldbus.
2. Data conversion if parameter
control profiles
on page
Control word and Status word

The Control Word (CW) is a 16-bit or 32-bit packed boolean word. It is the
principal means of controlling the drive from a fieldbus system. The CW is sent
by the fieldbus controller to the drive. With drive parameters, the user selects
SEL
0
1
2
3
58.2
SEL
0
1
2
3
58.2
Data I/O
selection
58.101
...
58.25 Control profile
358
.
EFB profile
EFB CW
03.09 EFB
reference 1
03.10 EFB
reference 2
EFB SW
Actual 1
Actual 2
Par. 01.01...255.255
ABB Drives
is set to . See section
1)
EXT1/2
Start
commands
20.01
20.06
Reference
selection
Groups
22/26/28/40
etc.
Reference
selection
Groups
22/26/28/40
etc.
Parameter
table
About the