User`s manual

MGate 4101-MB-PBS UM Quick Configuration
A-3
Quick Configuration Steps
MGate 4101-MB-PBS provides an innovative function which can automatically and quickly finish the
configuration. Two typical architectures are illustrated below. Confirm which architecture is used in your
application and then follow the steps to finish the configuration.
MGate 4101 is Modbus Master
MGate 4101 is Modbus Slave
PROFIBUS Overview
Introduction
PROFIBUS (Process Field Bus) is a standard for field bus communication in automation technology and was first
promoted in 1989 by BMBF (German department of education and research).
Topology
PROFIBUS uses the bus topology. In this topology, a central line, or bus, is wired throughout the system.
Devices are attached to this central bus. One bus eliminates the need for a full-length line going from the
central controller to each individual device.
In the past, each PROFIBUS device had to connect directly to the central bus. Technological advancements,
however, have made it possible for a new “two-wire” system. In this way, multiple PROFIBUS buses can
connect to each other.