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Chapter 1 – Introduction
Conventions Used in
This Guide
Communication Module
(COMM.MODULE)
Data Sets and
Data Words
DDCS
Parameter
1-2
Communication Module is a parameter name/parameter selection
name for a device (e.g. a fieldbus adapter) through which the drive is
connected to an external serial communication network (e.g. a
fieldbus). The communication with the communication module is
activated with a drive parameter.
Data sets are clusters of data sent through the DDCS link between the
fieldbus adapter module and the drive. Each data set consists of three
16-bit words, ie. data words. The Control Word (sometimes called the
Command Word) and the Status Word, References, and Actual Values
(see Chapter 6) are types of data words; the contents of some data
words are user-definable.
Distributed Drives Communication System; a communication protocol
used in fibre optic links in ABB drives.
A parameter is an operating instruction for the drive. Parameters can
be read and programmed with the drive control panel.
NCSA-01 Installation and Start-up Guide
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