Fieldbus Control Interface - ABB ACS355 series User Manual

344 Fieldbus control with fieldbus adapter

Fieldbus control interface

The communication between a fieldbus system and the drive consists of 16-bit input
and output data words. The drive supports at the maximum the use of 10 data words
in each direction.
Data transformed from the drive to the fieldbus controller is defined by parameter
group 54 FBA DATA IN
is defined by parameter group
Fieldbus network
Fieldbus module
DATA IN
Fieldbus-
specific
interface
1)
Some fieldbus adapters map this data automatically. For
the use of virtual addresses, see the user's manual of
the appropriate fieldbus adapter.
2)
See also other COMM selection parameters.

Control word and Status word
The Control word (CW) is the principal means of controlling the drive from a fieldbus
system. The Control word is sent by the fieldbus controller to the drive. The drive
switches between its states according to the bit-coded instructions of the Control
word.
The Status word (SW) is a word containing status information, sent by the drive to the
fieldbus controller.
and data transformed from the fieldbus controller to the drive
55 FBA DATA
Data in
select
1
...
10
5401/.../5410
DATA
Data out
OUT
select
1
...
10
5501/.../5510
OUT.
1)
4 = Status word
1)
5 = ACT1
1)
6 = ACT2
Par. 0101...9915
1)
1 = Control word
1)
2 = REF1
1)
3 = REF2
Par. 0101...9915
Start, stop,
dir select
NOT SEL
...
2)
COMM
1001/1002
REF1 select
KEYPAD
...
2)
COMM
1103
REF2 select
KEYPAD
...
2)
COMM
1106