About This Document
P-6
Doc.Id. SCM-1200-093
Anybus Communicator for Modbus Plus
Doc.Rev. 3.01
Conventions & Terminology
The following conventions are used throughout this document:
• Numbered lists provide sequential steps
• Bulleted lists provide information, not procedural steps
• The term ‘user’ refers to the person or persons responsible for installing the Anybus Communi-
cator in a network.
• The term ‘ABC’ refers to the Anybus Communicator.
• Hexadecimal values are written in the format 0xNNNN, where NNNN is the hexadecimal value.
• Decimal values are represented as NNNN where NNNN is the decimal value
• As in all communication systems, the terms “input” and “output” can be ambiguous, because
their meaning depend on which end of the link is being referenced. The convention in this doc-
ument is that “input” and “output” are always being referenced to the master/scanner end of the
link.
Glossary
Term
Meaning
ABC
Anybus
®
Communicator™
Broadcaster
A protocol-specific node in the configuration that handles transactions destined to all nodes.
MBP
Modbus Plus
Command
A predefined transaction.
Configuration
List of configured nodes with transactions on the subnetwork.
Fieldbus
The higher level network to which the communicator is connected.
Fieldbus Control System Fieldbus master
Frame Object
Low level entities which are used to describe the different parts of a transaction.
Monitor
A tool for debugging the Anybus Communicator and the network connections.
Node
A device in the configuration which defines the communication with a node on the subnetwork
Subnetwork
The network that is logically located on a subsidiary level with respect to the fieldbus, and to
which the Anybus Communicator acts as a gateway.
Transaction
A generic building block that is used in the subnetwork configuration and defines the data that
is sent and received on the subnetwork.
User
Person or persons responsible for installing the Anybus Communicator
Higher Level Network
In this case, Modbus Plus
Network
Fieldbus
Summary of Contents for Communicator Modbus plus
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