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404 Fieldbus control through the embedded fieldbus interface (EFB)
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.
CW
REF1
REF2
SW
ACT1
ACT2
I/O 1
I/O 2
I/O 3
…
I/O 69
EFB CW
EFB SW
Actual 1
Actual 2
Par. 01.01…255.255
1. See also other parameters which can be controlled through fieldbus.
2. Data conversion if parameter
is set to
(page
1)
Fieldbus network
Data I/O
selection
EXT1/2
Start commands
Reference
selection
Groups
22/26/28/40 etc.
Cyclic communication
Acyclic communication
SEL
2)
Parameter
table
0
1
2
3
SEL
0
1
2
3
2)
EFB profile
Reference
selection
Groups
22/26/28/40 etc.
…
ACS580 FW.book Page 404 Wednesday, September 21, 2016 9:48 PM
Содержание ACS580 Series
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