Table of Contents
Advertisement
38 Modbus/TCP – Start-up
Drive parameter
53.03 FBA A data out3
51.27 FBA A par refresh
20.01 Ext1 commands
22.11 Speed ref1 source
31.11 Fault reset selection
1) Example
2) Read-only or automatically detected/set
The start sequence for the parameter example above is given below.
Control word:
•
Reset the fieldbus communication fault (if active).
•
Enter 47Eh (1150 decimal) -> READY TO SWITCH ON.
•
Enter 47Fh (1151 decimal) -> OPERATING (Speed mode).
Client configuration
After the adapter module has been initialized by the drive, you must prepare the client
for communication with the module. Due to the large number of different Modbus
clients, specific instructions cannot be provided here. Refer to the documentation of
your client for more information.
Modbus register maps
￭
The Modbus register map which the adapter module presents to the Modbus client
is selected with parameter 02 Protocol/Profile.
For Modbus register map definitions, see chapter
protocol.
For definitions of the Control word, Status word, references and actual values for a
given communication profile, see chapter
Setting for ACS880 drives
22.27
1 = Refresh
12 = Fieldbus A
4 = FB A ref1
30 = FBA A MCW bit 7
Modbus/TCP – Communication
Modbus/TCP – Communication
Description
Constant speed 2
Validates the FMBT-21 configura-
tion parameter settings.
Selects the fieldbus A interface as
the source of the start and stop
commands for external control
location 1.
Selects the fieldbus A reference 1
as the source for speed reference
1.
Selects the fieldbus interface as
the source for the fault reset sig-
nal.
profiles.
Advertisement
Table of Contents
