Fieldbus control with embedded fieldbus 303
Setting up communication through the embedded Modbus
Before configuring the drive for fieldbus control, the FMBA-01 Modbus adapter (if
used) must be mechanically and electrically installed according to the instructions
given in section Attach the optional fieldbus module on page 35, and the module
manual.
The communication through the fieldbus link is initialized by setting parameter 9802
COMM PROT SEL to STD MODBUS or MODBUS RS232. The communication
parameters in group 53 EFB PROTOCOL must also be adjusted. See the table below.
After the configuration parameters in group 53 EFB PROTOCOL have been set, the
drive control parameters (shown in section Drive control parameters on page 304)
must be checked and adjusted when necessary.
The new settings will take effect when the drive is next powered up, or when
parameter 5302 EFB STATION ID setting is cleared and reset.
Parameter Alternative
settings
Setting for
fieldbus control
Function/Information
COMMUNICATION INITIALIZATION
9802 COMM PROT
SEL
NOT SEL
STD MODBUS
EXT FBA
MODBUS RS232
STD MODBUS
(with EIA-485)
MODBUS RS232
(with RS-232)
Initializes embedded fieldbus
communication.
ADAPTER MODULE CONFIGURATION
5302 EFB STATION
ID
0…247 Any Defines the station ID address of
the RS-232/EIA-485 link. No two
stations on line may have the
same address.
5303 EFB BAUD
RATE
1.2 kbit/s
2.4 kbit/s
4.8 kbit/s
9.6 kbit/s
19.2 kbit/s
38.4 kbit/s
57.6 kbit/s
115.2 kbit/s
Defines the communication
speed of the RS-232/EIA-485
link.
5304 EFB PARITY 8 NONE 1
8 NONE 2
8 EVEN 1
8 ODD 1
Selects the parity setting. The
same settings must be used in all
on-line stations.
5305 EFB CTRL
PROFILE
ABB DRV LIM
DCU PROFILE
ABB DRV FULL
Any Selects the communication profile
used by the drive. See section
Communication profiles on
page 315.
5310
…
5317
EFB PAR 10
…
EFB PAR 17
0…65535 Any Selects an actual value to be
mapped to Modbus register 400xx.
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