Quickstart Guide
ABB PLC and drives integration using Modbus RTU
Starting up ACS355 drives with FMBA01 Modbus RTU adapter
Minimum required parameter settings (based on factory default settings)
Parameter Description
98.02
COMM PROT SEL
53.02
EFB STATION ID
53.03
EFB BAUD RATE
53.04
EFB PARITY
53.05
PROFILE
53.10
Actual Speed
53.11
Actual Value2
Drive power down and power up for the new fieldbus settings to take effect!
10.01
EXT 1 COMMANDS
11.02
EXT1/EXT2 SEL
11.03
REF1 SELECT
16.04
FAULT RESET SEL
Optional parameter settings
30.18
COMM FAULT
FUNC
30.19
COMM FAULT TIME [optional]
(11.05)
REF1 MAX
*) in Par. 99.02 the Application Macro can be set to "AC500 Modbus (10)" then the parameters are automatically
set as shown.
Modbus RTU
Setting
Applic Macro
"AC500
MODBUS" *)
STD
STD
MODBUS
MODBUS
[Address]
2
19.2 kbit/s
19.2 kbit/s
(example)
8 NONE 1
8 NONE 1
(example)
ABB DRV
ABB DRV
FULL
FULL
101
101
105
303
COMM
COMM
COMM
COMM
COMM
COMM
COMM
COMM
[optional]
FAULT
Default:. 3s
[Scale max]
‐ 15 ‐
Comment
Activates fieldbus module
Modbus RTU node address of the drive
Transfer rate of the link. Same baud rate must
be defined in the Modbus RTU master.
Parity and stop bits. Same parity and stop bits
must be defined in the Modbus RTU master.
Communication profile "ABB Drives"
Actual speed feedback
Actual value2 (e.g torque 105) (303 = Status
Word 1)
Fieldbus interface as source for start and stop
Fieldbus interface as source to switch to EXT2
Fieldbus interface as source for speed
reference
Fieldbus interface as source for fault reset
How the drive reacts to a fieldbus
communication break.
Time between communication break detection
and the selected action.
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.
PLC and drives integration