Quickstart Guide
ABB PLC and drives integration using Modbus RTU
Starting up ACS880 drives with FSCA01 Modbus RTU adapter
Minimum required parameter settings (based on factory default settings)
Parameter Description
50.01
FBA A enable
51.02
PROTOCOL/PROFIL
E
51.03
STATION ID
51.04
BAUD RATE
51.05
EFB PARITY
52.02
FBA data in2
53.02
FBA data out2
51.27
FBA par refresh
19.11
Ext1/Ext2 selection Mcw Bit11
20.01
Ext 1 commands
20.02
Ext1 start trigger
22.11
Speed ref1
selection
31.11
Fault reset
selection
Optional parameter settings
50.02
FBA A comm loss
func
51.06
MODBUS TIMEOUT [optional]
51.07
TIMEOUT MODE
51.27
FBA PAR REFRESH
(46.01)
Speed scaling
Modbus RTU
Setting
Comment
Enable
Activates fieldbus module
ABB Drives
Communication profile "ABB Drives"
Classic or
Enhanced
[Address]
Modbus RTU node address of the drive
19.2 kbit/s
Transfer rate of the link. Same baud rate must be
(example)
defined in the Modbus RTU master.
8 NONE 1
Parity and stop bits. Same parity and stop bits
(example)
must be defined in the Modbus RTU master.
Act1 16bit (5)
Actual speed as Data Word 2 from the drive
Ref1 16bit (2)
Speed reference as Data Word 2 to the drive
Configure
Updates fieldbus settings (groups 50 to 57)
Fieldbus interface as source to switch to EXT2
(06.01)
control location
Fieldbus A
Fieldbus interface as source for start and stop
Level
To directly restart after Coast Stop (Off3)
FB A ref1
Fieldbus interface as source for speed reference
P.06.01 bit 7
Fieldbus interface as source for fault reset
[optional]
Defines the drive operation after the
communication loss monitoring awakes.
Time between communication break detection
and the selected action. 1 = 100 ms.
CONTROL
How the drive reacts to a fieldbus communication
WRITE
break.
REFRESH
Updates fieldbus settings (groups 50 to 53)
[Scale max]
Max speed/frequency scaling value (used in
function block/visualization input
"SPEED_REF_MAX"). Must be less or equal to drive
parameter max speed/frequency.
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PLC and drives integration