Communication Profiles - ABB ACS355 series User Manual

328 Fieldbus control with embedded fieldbus

Communication profiles

The embedded fieldbus supports three communication profiles:
• DCU communication profile
• ABB drives limited communication profile
• ABB drives full communication profile
The DCU profile extends the control and status interface to 32 bits, and it is the
internal interface between the main drive application and the embedded fieldbus
environment. The ABB drives limited profile is based on the PROFIBUS interface.
The ABB drives full profile
supported by the ABB DRV LIM
Modbus
network
ABB drives profile
DCU profile

ABB drives communication profile
Two implementations of the ABB drives communication profile are available: ABB
drives full and ABB drives limited. The ABB drives communication profile is active
when parameter 5305 EFB CTRL PROFILE
LIM. The Control word and Status word for the profile are described below.
The ABB drives communication profiles can be used through both EXT1 and EXT2.
The Control word commands are in effect when parameter
or 1002 EXT2 COMMANDS
(DCU PROFILE)
(ABB DRV
(ABB DRV FULL) supports two Control word bits not
implementation.
Embedded fieldbus
RS-232/EIA-485
ABB DRV LIM /
ABB DRV FULL
Data conversion
DCU PROFILE
Control/Status word
Data conversion
for REF1/2
is set to
(whichever control location is active) is set to COMM.
(ABB DRV LIM)
FULL).
DCU profile
DCU profile
ABB DRV FULL
1001 EXT1 COMMANDS
Drive
Actual values
selected by
parameters
5310...5317
Actual values
selected by
parameters
5310...5317
or ABB DRV