The Fieldbus Control Interface; The Control Word And The Status Word - ABB ACSM1 Firmware Manual

388

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-bit) in each direction.
Data transmitted from the drive to the fieldbus controller is defined by parameters
52.01...52.12
drive is defined by parameters
Fieldbus network
Fieldbus module
DATA
2)
OUT
4)
1
2
3
...
12
Fieldbus
specific
DATA
interface
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.

The Control Word and the 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.
Appendix A – Fieldbus control
(FBA DATA IN) and data transmitted from the fieldbus controller to the
Profile
select
4)
DATA OUT
select
3)
Profile
53.01/.../53.12
select
5)
DATA IN
select
3)
52.01/.../52.12
53.01...53.12 (FBA DATA OUT).
FBA profile
FBA MAIN CW
FBA REF1
FBA REF2
Par. 10.01...99.13
FBA MAIN SW
FBA ACT1
FBA ACT2
Par. 01.01...99.13
1)
EXT1/EXT2
Start Func
10.01
/10.04
Speed/Torque
REF1 Sel
24.01/32.01
/32.02
Speed/Torque
REF2 Sel
24.02/32.01
/32.02
Parameter
table