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ACS550 User’s Manual
189
Embedded fieldbus
Embedded fieldbus
Overview
The ACS550 can be set up to accept control from an external system using standard
serial communication protocols. When using serial communication, the ACS550 can
either:
• receive all of its control information from the fieldbus, or
• be controlled from some combination of fieldbus control and other available
control locations, such as digital or analog inputs and the control panel.
Two basic serial communications configurations are available:
• embedded fieldbus (EFB) – Using the RS485 interface at terminals X1:28…32 on
the control board, a control system can communicate with the drive using the
Modbus® protocol. (For protocol and profile descriptions, see sections
and
ABB control profiles technical data
later in this
chapter.)
• fieldbus adapter (FBA) – See chapter
on page
.
Control interface
In general, the basic control interface between Modbus and the drive consists of:
• Output words
– Control Word
– Reference1
– Reference2
• Input words
– Status Word
– Actual value 1
– Actual value 2
Fieldbus
Fieldbus controller
Other devices
Connect using either:
• standard embedded fieldbus (EFB) at
terminals X1:28…32
• fieldbus adapter (FBA) module mounted
in slot 2 (option Rxxx).
Содержание ACS550 Series
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