![background image](http://html1.mh-extra.com/html/abb/acs880-x04/acs880-x04_firmware-manual_3389539551.webp)
Fieldbus control through the embedded fieldbus interface (EFB) 551
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 the transparent control profiles).
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 24
1. See also other parameters which can be controlled through fieldbus.
2. Data conversion if parameter
. See section
3. If parameter
is set to
,
• the sources of the status word and actual values are selected by parameters
(otherwise,
actual values 1 and 2 are automatically selected according to reference type), and
• the control word is displayed by
.
1)
Fieldbus network
Data I/O
selection
EXT1/2
Start commands
Reference
selection
Groups
22/26/28/40 etc.
Cyclic communication
Acyclic communication
SEL
Parameter
table
0
2
EFB profile
Reference
selection
Groups
22/26/28/40 etc.
…
2)
0
2
2)
EFB CW
3)
EFB SW
3)
Actual 1
3)
Actual 2
3)
Par. 01.01…255.255
Содержание ACS880-x04
Страница 1: ... ABB INDUSTRIAL DRIVES ACS880 primary control program Firmware manual ...
Страница 4: ......
Страница 18: ...18 Using the control panel ...
Страница 24: ...24 Control locations and operating modes ...
Страница 111: ...Application macros 111 Fieldbus control macro This application macro is not supported by the current firmware version ...
Страница 112: ...112 Application macros ...
Страница 496: ...496 Additional parameter data ...
Страница 544: ...544 Fault tracing ...
Страница 602: ...602 Control chain diagrams ...