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Make Your Serial Devices Internet Ready™
In the automation industry, tens of millions
of sensors, gauges, PLCs, card readers, and other
devices must be connected to form a control network
and provide managerial data for information systems.
The most widely used interfaces for connecting
such devices are RS-232 and RS-422/485.
In recent years, network infrastructures such
as Ethernet and Internet have received wide recognition
in the automation industry. The trend has been
towards adopting a mature, open technology, such
as TCP/IP and Ethernet, for controlling serial
devices. Device manufacturers and device users
are both looking for an instant solution to transform
and connect devices to the Ethernet/Internet.
MOXA NPort Express provides just such an INSTANT
solution, giving you a way to link traditional
devices that have an RS-232/422/485 interface
with the Ethernet/Internet.
How to Make Your Serial Devices Internet Ready™
INSTANTLY
To change a serial device into a network-enabled
device can take much time and effort, considering
the development and integration required for the
CPU, DSP, TCP/IP protocol, and real time operating
system.
But now it is no longer necessary to invest extra
manpower on TCP/IP and Ethernet development. MOXA
NPort Express provides off-the-shelf solutions
that utilize a serial device’s existing RS-232/422/485
port and make your devices Internet ready INSTANTLY.
MOXA provides two ways to bring this about
External Solution: NPort
DE-311/211
This is a 1-port device server that’s designed
to convert data from the RS-232/422/485 interface
to a form suitable for 10/100 Mbps TCP/IP Ethernets.
Check
out our Embedded Solution: NPort DE-311M
This is an RS-232/TTL to Ethernet, board-level
OEM product that device manufactures can easily
integrate into their products.
Applications
- Intrance control and security/attendance management
- Manufacturing automation
- Telecom and fiber optic network management
- Industrial control and process control
- Hospital/Laboratory automation
- Remote image transmission
How a PC uses NPort Express to Access Serial
Data
Two approaches are available to access serial
data:
Driver Access
By using Moxa's NPort Native COM driver, NPort
Express's serial port can be set up to emulate
a remote COM port. In this case, there is no need
to modify software or communications objects.
The solution can be used immediately with NPort
Express's serial port, and is applicable to all
Windows platforms, as well as Linux/Unix systems
that have driver support.
Socket Access
Use TCP/IP sockets to access serial data via
a specific NPort Express TCP port. This solution
is applicable to any system that has TCP/IP connectivity.
In addition, MOXA provides several operation modes
and features that use socket access, such as:
- TCP Server: allows passive TCP connections
for your serial device
- TCP Client: actively sends serial data to
the network
- UDP Server/Client: provides UDP based fast
data packet transmission and multi-destination
data transmission for serial devices
- Ethernet Modem: provides NPort Express with
AT command simulation, for use with legacy DOS
software over an Ethernet
- Pair Connection: provides data tunneling over
an Ethernet, for use with any type of serial
device
- Data Packing: the data packing facility inhibits
data segmentation
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