SGW1-IA3-MMP – Modbus Multiplexer
Exemys
www.exemys.com
SGW1-IA3-MMP User’s Manual Rev. 1
4
1
Introduction
1.1
User’s Manual Purpose
The purpose of this manual is to provide the instructions for installing and operating the
SGW1-IA3-MMP quickly and simply. The manual begins with a general description of the
product, following the instructions for the correct installation of the hardware. The
configuration and operation of the device is detailed later.
Acronym
Description
PC
Personal Computer
USB
Universal Serial Bus
LED
Led Indicator
GND
Ground (Reference)
1.2
Product Overview
The SGW1-IA3-MMP is a Modbus communications multiplexer / converter over serial ports. It
allows you to connect Modbus RTU / ASCII masters to Modbus RTU / ASCII slaves. Each of
the serial devices can operate with Baud Rate, Data Bits, Parity, Bits Stop and different
Modbus protocol type (RTU or ASCII).
The SGW1-IA3-MMP orders the interrogations coming from the different masters assigning a
priority according to the order of arrival of the different masters, and then sends them to the
slaves.
As an additional function, the device allows the exchange of information between Modbus
masters through the 1000-byte exchange memory that can be read and written by any of the
connected masters.
