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Fieldbus interfaces 101
5
Fieldbus interfaces
Contents of this chapter
This chapter describes how to configure the inverter as a slave on an RS-485 bus for
communication with a Modbus RTU master.
Fieldbus adapter modules
The PRO-33.0-TL inverter is equipped with expansion slots for Modbus RTU and TCP
fieldbus adapter modules. The inverter firmware supports FSCA-01 and FENA-01/11/21
range of fieldbus adapters which can be installed to add an additional communication link
in case the embedded fieldbus interface is reserved for other use. For installation and
setup of these modules, refer to the
List of related manuals
on page 2.
Embedded fieldbus
The PRO-33.0-TL inverter is equipped with an embedded fieldbus slave which allows the
inverter to communicate with third party Modbus masters using the Modbus RTU protocol.
Connecting inverter to fieldbus network
Connect the fieldbus cable to terminal X2 on the inverter(s). X2 is the connection point for
the daisy-chained RS-485 transmission line with one master and multiple slaves. Set the
termination resistor switches, S1, so that only the inverter at the end of line is terminated.
A connection example and the pin configuration are described in the PRO-33.0-TL
Product manual (3AUA0000123261 [English]).
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