318 Control through the embedded fieldbus interface
Basics of the embedded fieldbus interface
The cyclic communication between a fieldbus system and the drive consists of 16-bit
data words (with the ABB Drives profile or DCU 16-bit profile) or 32-bit data words
(with the DCU 32-bit 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 24
Actual 1
3)
Actual 2
3)
Par. 01.01…99.99
1) See also other parameters which can be controlled by the fieldbus.
2) Data conversion if parameter
. See section
About the EFB communication profiles
on page
.
3) See parameter
and
for the actual value selections.
1)
Fieldbus network
DATA I/O
selection
Group 58
EXT1/2
Start func
Speed/Torque
REF1 sel
/
Speed/Torque
REF2 sel
/
Cyclic communication
Acyclic communication
SEL
2)
Parameter
table
0
1
2
3
SEL
0
1
2
3
2)
Содержание ACS850 series
Страница 1: ...ACS850 Firmware Manual ACS850 Standard Control Program ...
Страница 4: ......
Страница 56: ...56 Control locations and operating modes ...
Страница 262: ...262 Parameters ...
Страница 310: ...310 Fault tracing ...
Страница 348: ...348 Control through a fieldbus adapter ...
Страница 358: ...358 Drive to drive link ...
Страница 368: ...368 Control chain and drive logic diagrams ...