105U-G Wireless Gateway User Manual
Page 7© August 2003
Chapter 1 INTRODUCTION
1.1
105G Overview
The 105U-G Wireless Gateway products provide a wireless interface between various data
buses used in process and automation applications. The 105U-G includes an integral radio
transceiver suitable for licence-free operation in
many countries. The 105U-G transfers
transducer and control signals (I/O) by radio
using a highly secure and highly reliable radio
protocol.
The 105U radio protocol is designed for very
efficient radio band usage, with event reporting
communications, automatic acknowledgement
and error-correction, peer to peer addressing,
multiple path routing, and frequency encoding
and data encryption for system security.
Application types include:
• The 105U-G interfaces between 105U
wireless I/O and various data buses.
Connect wireless I/O to PLC’s, DCS,
SCADA or Internet.
• Wireless extension of factory automation
buses such as Profibus.
• Wireless interconnectivity between different
data buses - Ethernet to Profibus to Modbus
to DF1.
• Combined networks of the above.
The 105U-G has eight on-board discrete I/O. Each I/O point can be configured individually
as a contact input signal, or a discrete output signal. Input signals can sent via its data-bus
connection to a host device (PLC, DCS etc) or be transmitted by radio to other 105U units.
The output signals can be driven by a host device, or linked to inputs on remote 105U units.
This document assumes the reader is familiar with the operation of the 105U I/O modules -
for further information, please refer to the User Manuals for these products.
Profibus
Ethernet
Modbus
DF1
Internet
105U I/O
105U I/O
Direct I/O
105U-G
Direct I/O
105U-G
Profibus
105U-G
Profibus
105U-G
Profibus
Ethernet
105U I/O
105U I/O
Direct I/O
105U-G
Direct I/O
Profibus
Modbus
105U-G
105U-G
105U-G
Modbus
105U-G
Ethernet
105U-G
Profibus