Fieldbus control with the embedded fieldbus 291
Drive control parameters
After the Modbus communication has been set up, the drive control parameters listed
in the table below should be checked and adjusted when necessary.
The Setting for fieldbus control column gives the value to use when the Modbus
interface is the desired source or destination for that particular signal. The
Function/Information column gives a description of the parameter.
Parameter Setting for
fieldbus
control
Function/Information Modbus register
address
CONTROL COMMAND SOURCE SELECTION ABB DRV DCU
1001 EXT1
COMMANDS
COMM Enables 0301 FB CMD WORD 1
bits 0…1 (START/STOP) when
EXT1 is selected as the active
control location.
40031 bits
0…1
1002 EXT2
COMMANDS
COMM Enables 0301 FB CMD WORD 1
bits 0…1 (START/STOP) when
EXT2 is selected as the active
control location.
40031 bits
0…1
1003 DIRECTION FORWARD
REVERSE
REQUEST
Enables rotation direction control
as defined by parameters 1001
and 1002. The direction control is
explained in section Reference
handling on page 297.
40031 bit 2
1102 EXT1/EXT2
SEL
COMM Enables EXT1/EXT2 selection
through 0301 FB CMD WORD 1
bit 5 (with ABB drives profile 5319
EFB PAR 19 bit 11).
40001
bit 11
40031 bit 5
1103 REF1
SELECT
COMM
COMM+AI1
COMM*AI1
Fieldbus reference REF1 is used
when EXT1 is selected as the
active control location. See section
Fieldbus references on page 294
for information on the alternative
settings.
40002 for REF1
1106 REF2
SELECT
COMM
COMM+AI1
COMM*AI1
Fieldbus reference REF2 is used
when EXT2 is selected as the
active control location. See section
Fieldbus references on page 294
for information on the alternative
settings.
40003 for REF2
OUTPUT SIGNAL SOURCE SELECTION ABB DRV DCU
1401 RELAY
OUTPUT 1
COMM
COMM(-1)
Enables relay output RO control by
signal 0134 COMM RO WORD.
40134 fo
r signal 0134
1501 AO1
CONTENT
SEL
135 Directs the contents of fieldbus
reference 0135 COMM VALUE 1
to analog output AO.
40135 for signal 0135
SYSTEM CONTROL INPUTS ABB DRV DCU
1601 RUN
ENABLE
COMM Enables the control of the inverted
Run enable signal (Run disable)
through 0301 FB CMD WORD 1
bit 6 (with ABB drives profile 5319
EFB PAR 19 bit 3).
40001 bit 3 40031 bit 6
To Next Page
Loading...
Need help?
General
