ABB RETA-01, User Manual

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Introduction
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An input will produce data to the network and an output will
consume data received from the network.
RETA-01 Ethernet Adapter module
The RETA-01 Ethernet Adapter module is one of the optional
fieldbus adapter modules available for ABB drives. The RETA-01
is a device through which a drive is connected to an Ethernet
network.
I/O Assembly selection
Smart network devices (such as the RETA-01) can produce and/or
consume more than one I/O value. Typically, they will also
produce and/or consume status and diagnostic information. Each
piece of data communicated by a device is represented by an
attribute in one of the device’s internal objects. Communicating
multiple pieces of data (attributes) across a single I/O connection
requires that the attributes are grouped or assembled together into
a single block.
Parameter
A parameter is an operating instruction for the drive. Parameters
can be read and programmed with the drive control panel, or
through the RETA-01 module.
Attribute
Attribute is a description of a characteristic or feature of an object,
i.e. they contain information about the object. Typically, attributes
provide status information or govern the operation of an object.
Attributes are divided into class attributes and instance attributes.