User Manual

2 ADAM-4572 User's Manual
1.1 ADAM Data Gateway Series
Networks have become increasingly vital for industrial automation appli-
cations. Many control devices today do not have a network port and can
only communicate with a dedicated local PC or control panel.
Advantech’s revolutionary network-enabling technology is now
allowing control devices with serial ports to connect to the Ethernet and
share networks quickly and cost-effectively. The ADAM-4572 Ethernet
to Modbus Data Gateway is a new product of ADAM Data Gateway
series from Advantech that allows users to integrate new and existing
Modbus/RTU and Modbus/ASCII serial devices to newer TCP/IP
network-based devices. Manufacturers, system integrators, and end users
can now take advantage of the ADAM-4572 to create networked
applications for remote managing and to accessing data for their control
devices that wasn't possible before.
1.2 Protocol
Originally developed for PLCs in industrial automation and manufactur-
ing control applications, Modbus has become one of the most popular
open standard protocols in use today. When it comes to planning data
communication for open, multi-vendor industrial control systems, Mod-
bus is the first choice of end users and integrators. Although it’s not the
most powerful protocol available, its rare simplicity allows not only rapid
implementation, but also remains flexible enough to be applied in virtual-
ly all industrial situations.
The communication mode of Modbus can be ASCII, RTU, or TCP/IP. The
ADAM-4572 is used to support applications such as protocol conver-
sion between serial (Modbus/ASCII or Modbus/RTU) and networked
(Modbus/TCP) Modbus devices or it can be used to bridge Modbus
serial devices over TCP/IP network.