Basics Of The Embedded Fieldbus Interface - ABB ACS560 Firmware Manual

Fieldbus control through the embedded fieldbus interface (EFB) 443

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
profiles (page 446).
SEL
0
1
2
3
58.25
SEL
0
1
2
3
58.25
Data I/O
selection
58.101
...
58.114
58.25 Control profile
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
is set to ABB Drives. See section
1)
EXT1/2
Start commands
20.01
20.06
Reference
selection
Groups
22/28/40 etc.
Reference
selection
Groups
22/28/40 etc.
Parameter
table
About the control