The Fieldbus Control Interface - ABB ACS850 Firmware Manual

248 Fieldbus control

The fieldbus control interface

The cyclic communication between a fieldbus system and the drive consists of 16/32-
bit input and output data words. The drive supports at the maximum the use of 12
data words (16 bits) in each direction.
Data transmitted from the drive to the fieldbus controller is defined by parameters
52.01 FBA data in1
controller to the drive is defined by parameters
data out12.
Fieldbus network
Fieldbus adapter
DATA
2)
OUT
selection
4)
1
2
3
...
12
DATA
2)
IN
5)
1
2
3
...
12
Cyclic communication
Acyclic communication
See the manual of the fieldbus
adapter module.
1) See also other parameters which can be controlled by the fieldbus.
2) The maximum number of used data words is protocol-dependent.
3) Profile/instance selection parameters. Fieldbus module specific parameters. For more
information, see the User's Manual of the appropriate fieldbus adapter module.
4) With DeviceNet, the control part is transmitted directly.
5) With DeviceNet, the actual value part is transmitted directly.
... 52.12 FBA data
Profile
4)
DATA OUT
selection
3)
Profile
Group 53
selection
5)
DATA IN
selection
3)
Group 52
in12. The data transmitted from the fieldbus
53.01 FBA data out1
FBA Profile
FBA MAIN CW
FBA REF1
FBA REF2
Par. 10.01...99.99
FBA MAIN SW
FBA ACT1
FBA ACT2
Par. 01.01...99.99
... 53.12 FBA
1)
EXT1/2
Start func
10.01
10.04
Speed/Torque
REF1 sel
21.01 / 24.01
/ 24.02
Speed/Torque
REF2 sel
21.02 / 24.01
/ 24.02
Parameter
table