INSTRUCTIONS
3.3
Feedback LEDs
LED Status
Description
Off
Soft starter not powered up
On
Communication active
Flashing
Communication inactive
NOTE
If communication is inactive, the soft starter may trip on Network
Communications. If parameter 6M
Network Communications
is set to 'Soft Trip
and Log' or 'Trip Starter', the soft starter will require a reset.
4.
Modbus Registers
NOTE
The available features and parameters details may vary according to the model
and software version of the starter. Refer to the soft starter user manual for
details of parameters and supported features.
4.1
PLC Configuration
Use the register tables below to map registers within the module to addresses within
the PLC.
NOTE
All references to registers mean the registers within the module unless
otherwise stated.
4.2
Compatibility
The Modbus RTU Card supports two modes of operation.
•
In Standard Mode, the card uses registers defined in the Modbus Protocol
Specification.
•
In Legacy Mode, the card uses the same registers as AuCom's Modbus Module.
Some registers differ from those specified in the Modbus Protocol Specification.
The mode of operation is determined by the values of bit 15 in register 40001.
4.3
Ensuring Safe and Successful Control
Data written to the device will remain in its registers until the data is overwritten or
the device is reinitialised.
If the soft starter may be controlled via Command Override (parameter 7A) or may be
disabled via the reset input (terminals 10, 11) fieldbus commands should be cleared
from the registers. If a command is not cleared, it will be re-sent to the starter once
fieldbus control resumes.
4
Modbus RTU Card (710-16499-00B)
