Moxa Technologies IA240 Instructions for use

IA240 Hardware User’s Manual
Edition 8.1, May 2018
www.moxa.com/product
© 2018 Moxa Inc. All rights reserved.

IA240 Hardware User’s Manual
The software described in this manual is furnished under a license agreement and may be used only in accordance with
the terms of that agreement.
Copyright Notice
© 2018 Moxa Inc. All rights reserved.
Trademarks
The MOXA logo is a registered trademark of Moxa Inc.
All other trademarks or registered marks in this manual belong to their respective manufacturers.
Disclaimer
Information in this document is subject to change without notice and does not represent a commitment on the part of
Moxa.
Moxa provides this document as is, without warranty of any kind, either expressed or implied, including, but not limited
to, its particular purpose. Moxa reserves the right to make improvements and/or changes to this manual, or to the
products and/or the programs described in this manual, at any time.
Information provided in this manual is intended to be accurate and reliable. However, Moxa assumes no responsibility for
its use, or for any infringements on the rights of third parties that may result from its use.
This product might include unintentional technical or typographical errors. Changes are periodically made to the
information herein to correct such errors, and these changes are incorporated into new editions of the publication.
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Table of Contents
1. Introduction...................................................................................................................................... 1-1
Overview ...........................................................................................................................................1-2
Package Checklist........................................................................................................................1-2
Product Features .........................................................................................................................1-2
Product Hardware Specifications....................................................................................................1-3
Hardware Introduction ........................................................................................................................1-4
Appearance ................................................................................................................................1-4
Dimensions.................................................................................................................................1-5
LED Indicators ............................................................................................................................1-5
Reset-Type Buttons .....................................................................................................................1-5
Real Time Clock ..........................................................................................................................1-6
Placement Options ..............................................................................................................................1-6
DIN-Rail Mounting .......................................................................................................................1-6
Wall Mounting (Optional)..............................................................................................................1-7
Hardware Connection Description .........................................................................................................1-8
Wiring Requirements ...................................................................................................................1-8
Connecting the Power ..................................................................................................................1-8
Grounding the IA240 ...................................................................................................................1-9
Connecting to the Network ...........................................................................................................1-9
Connecting to a Serial Device .......................................................................................................1-9
Connecting to the Console Port ................................................................................................... 1-10
SD Interface ............................................................................................................................. 1-10
USB......................................................................................................................................... 1-10
DI/DO...................................................................................................................................... 1-10

1
1. Introduction
Thank you for purchasing the Moxa IA240 RISC-based industrial ready-to-run embedded computer. This
product’s features include four RS-232/422/485 serial ports, dual 10/100 Mbps Ethernet ports, 4 digital input
channels and 4 digital output channels, and SD interface and USB ports for mass storage disk expansion. These
features make the IA240 Series ideal for your embedded applications.
This manual introduces the hardware of the IA240 Series embedded computers. After a brief introduction of the
hardware features, the manual focuses on installation and hardware configuration with device interfaces.
The following topics are covered in this chapter:

Overview
Package Checklist
Product Features
Product Hardware Specifications

Hardware Introduction
Appearance
Dimensions
LED Indicators
Reset-Type Buttons
Real Time Clock

Placement Options
DIN-Rail Mounting
Wall Mounting (Optional)

Hardware Connection Description
Wiring Requirements
Connecting the Power
Grounding the IA240
Connecting to the Network
Connecting to a Serial Device
Connecting to the Console Port
SD Interface
USB
DI/DO

IA240 Hardware Introduction
1-2
Overview
The IA240 embedded computers, which are ideal for industrial automation applications, feature 4
RS-232/422/485 serial ports, dual Ethernet ports, 4 digital input channels, 4 digital output channels, and SD
socket in a compact, IP30 protected, industrial-strength rugged casing. The DIN-Rail vertical form factor
makes the IA240 a cost effective solution for installation in small cabinets. This space-saving solution also
facilitates easy wiring, and is the best choice of front-end embedded controller for industrial applications.
In addition to the standard model, the IA240 also comes in wide temperature models. The IA240-T has an
operating temperature range of -40 to 75°C, and are appropriate for harsh industrial automation environments.
The industrial mechanism of the IA240 design provides robust, reliable computing. Due to the RISC-based
architecture, the IA240 will not generate too much heat while being used. The high communication
performance and fanless design make the IA240 ideal for industrial automation environments.
The IA240 embedded computers use a Moxa ART ARM9, 32-bit, 192 MHz RISC CPU. Unlike the X86 CPU, which
uses a CISC design, the RISC design architecture and modern semiconductor technology provide the IA240
with a powerful computing engine and communication functions, but without generating a lot of heat. The
built-in 16 MB NOR Flash ROM and 64 MB SDRAM give you enough memory to run your application software
directly on the IA240. As the dual LAN ports are built right into the Moxa ART ARM9 CPU, the IA240 is an ideal
communication platform for Network Security applications.
Package Checklist
All models of the IA240 Series are shipped with the following items:
•1 IA240 Embedded Computer
•Wall-Mounting Kit
•DIN-Rail Mounting Kit (attach to the product’s casing)
•Quick Installation Guide
•Document & Software CD
•Cross-over Ethernet cable
•CBL-RJ45M9-150: 150 cm, 8-pin RJ45 to Male DB9 serial port cable
•CBL-RJ45F9-150: 150 cm, 8-pin RJ45 to Female DB9 console port cable
•Universal Power Adapter
•Product Warranty Statement
NOTE: Notify your sales representative if any of the above items are missing or damaged.
Product Features
•Moxa ART 32-bit ARM9 industrial communication processor
•64 MB RAM on-board, 16 MB Flash Disk
•4 RS-232/422/485 serial ports
•4-ch digital input and 4-ch digital output
•Dual 10/100M Ethernet for redundant networking
•SD socket for storage expansion
•Ready-to-Run Linux Communication Platform
•“Software Lock” function to protect your application program
•DIN-Rail installation; wall-mount installation is also possible
•Robust, fanless design; IP30 protection mechanism
•-40 to 75°C wide temperature models available

IA240 Hardware Introduction
1-3
Product Hardware Specifications
IA240 / IA240-T
CPU Moxa “ART” ARM9 32-bit CPU 192 MHz
RAM 64 MB
Flash
16 MB
OS Linux
LAN Auto-sensing 10/100 Mbps x 2 with built-in 1.5 KV magnetic isolation
protection; RJ45 Connector
Serial Ports RS-232/422/485 ×4, RJ45 Connector
Serial Protection
15 KV ESD for all signals
Data Bits 5, 6, 7, 8
Stop Bits 1, 1.5, 2
Parity None, Even, Odd, Space, Mark
Flow Control RTS/CTS, XON/XOFF, RS-485 ADDC™
Speed 50 bps to 921.6 Kbps
Serial Console RS-232 ×1, RJ45 Connector
DI/DO DI ×4, DO ×4
USB 2.0 Hosts 1
Storage Expansion SD ×1**
Watchdog Timer Yes
Real Time Clock Yes
Buzzer Yes
Reset Button HW Reset ×1, Reset to Default ×1
Power Input 12 to 48 VDC
Power Consumption 7W
Dimensions (W x D x H) 60 ×100 ×137 mm
Weight 430 g
Operating temperature -10 to 60°C, (14 to 140°F), 5 to 95% RH
-40 to 75°C, (-40 to 167°F) is optional (for -T models)
Storage temperature -20 to 80°C, (-4 to 176°F), 5 to 95% RH
-40 to 85°C, (-40 to 185°F) is optional (for -T models)
Anti-Vibration 1 g @ IEC-68-2-6, sine wave(resonance search), 5-500 Hz, 1 Oct/min, 1 cycle,
13 mins 17 sec/axis
Regulatory Approvals EMC: CE Class A, FCC Class A; Safety: UL, cUL, TÜV
Warranty 5 years
* USB Client function is reserved for future enhancement
** SD is designed for Flash memory card expansion

IA240 Hardware Introduction
1-4
Hardware Introduction
Appearance

IA240 Hardware Introduction
1-5
Dimensions
LED Indicators
The IA240 has 16 LED indicators on the front panel. Refer to the following table for information about each LED.
LED Name Color Meaning
Power Red Power is ON.
Ready Green OS is ready and functioning normally (after booting up).
LAN1, LAN2 Orange 10 Mbps Ethernet connection
Green 100 Mbps Ethernet connection
Console Orange Console port is receiving RX data from the serial device.
Green Console port is transmitting TX data to the serial device.
P1, P2, P3, P4,
Orange
Serial port is receiving RX data from the serial device.
Green Serial port is transmitting TX data to the serial device.
NOTE
If the
orange LEDs P1 to P4 turn on
when the unit is powered on but no serial cable is connected, this indicates
that the pull
-up and pull-down resistors in the device have been
set to a resistance of 1k Ohm. The LEDs will
turn off once you connect the serial cable and
only turn on when the port is receiving data.
Reset-Type Buttons
The IA240 has two reset-type buttons. The button labeled Reset has the same effect as switching off the power
and then switching the power back on. The button labeled Reset to default returns the IA240 to the factory
default parameter configuration.
Reset Button
Pressing the Reset button initiates a hardware reboot. The button plays the same role as a desktop PC’s reset
button.
In normal use, you should NOT use the Reset Button. You should only use this function if the software is not
working properly. To reset an embedded Linux system, always use the software reboot command />reboot to
protect the integrity of data being transmitted or processed.

IA240 Hardware Introduction
1-6
Reset-to-Default Button
Press the Reset to Default button continuously for at least 5 seconds to load the factory default
configuration. After the factory default configuration has been loaded, the system will reboot automatically.
The Ready LED will blink on and off for the first 5 seconds, and then maintain a steady glow once the system
has rebooted.
We recommend that you only use this function if the software is not working properly and you want to load
factory default settings. To reset an embedded Linux system, always use the software reboot command
/>reboot to protect the integrity of data being transmitted or processed. The Reset to Default button is not
designed to hard reboot the IA240.
ATTENTION
Reset to Default preserves user
’s data
The
Reset to Default button will NOT format the user directory and erase the user’s data.
Pressing the Reset
to default button will
only load the configuration file. All files in the /etc. directory will revert to their factory
defaults, but other User Data will still exist in the Flash ROM.
Real Time Clock
The IA240’s real time clock is powered by a lithium battery. We strongly recommend that you do not replace
the lithium battery without help from a qualified Moxa support engineer. If you need to change the battery,
contact the Moxa RMA service team.
WARNING
There is a risk of explosion if the battery is replaced by an incorrect type.
Placement Options
DIN-Rail Mounting
The aluminum DIN-Rail attachment plate is already attached to the product’s casing. To attach the plate to
IA240, make sure that the stiff metal spring is facing the top of the IA240, as shown in the following figures.
STEP1:
Insert the top of the DIN-Rail into the slot
just below the
stiff metal spring.
STEP2:
The DIN-Rail attachment unit will snap into
place as shown.
To remove the IA240 from the DIN-Rail, simply reverse Steps 1 and 2.

IA240 Hardware Introduction
1-7
Wall Mounting (Optional)
For some applications, you will find it convenient to mount IA240 on the wall, as depicted by the following
illustrations.
STEP 1:
Remove the aluminum DIN
-Rail attachment plate
from IA240’s rear panel, and then attach the wall
mount plates, as shown by the figures at the right.
STEP 2:
Mounting IA240 on the wall requires 4 screws. Use the
switch, with wall mount plates
attached, as a guide to mark the correct locations of the 4 screws. The heads of the
screws should be less than 6.0 mm in diameter, and the shafts should be less than 3.5
mm in diameter, as shown by the figure
at the right.
NOTE
Before tightening the screws into the wall, make sure the screw head and shank size are suitable by inserting
the screw into one of the keyhole
-shaped apertures of the Wall Mounting Plates.
Do not screw the screws in completely—leave about 2 mm to allow room for sliding the wall mount panel
between the wall and the screws.
STEP 3:
Once the screws are fixed on the wall, insert the four
screw heads through the large parts of the
keyhole
-shaped apertures, and then slide IA240
downwards, as indicated. Tighten the four screws for
added
stability.

IA240 Hardware Introduction
1-8
Hardware Connection Description
This section describes how to connect the IA240 to serial devices for first time testing purposes. We cover
Wiring Requirements, Connecting the Power, Grounding the IA240, Connecting to the Network,
Connecting to a Serial Device, Connecting to the Console Port, SD Socket, USB, and DI/DO.
Wiring Requirements
ATTENTION
Safety First!
Be sure to disconnect the power cord before installing and/or wiring your
IA240.
Wiring Caution!
Calculate the maximum possible current in each power wire and common wire. Observe all electrical codes
dictating the maximum current allowable for each wire s
ize.
If the current goes above the maximum ratings, the wiring could overheat, causing serious damage to your
equipment.
Temperature Caution!
Be
careful when handling the IA240. When plugged in, the IA240’s internal components generate heat, and
consequent
ly the outer casing may feel hot to the touch.
You should also observe the following common wiring guidelines:
•Use separate paths to route wiring for power and devices. If power wiring and device wiring paths must
cross, make sure the wires are perpendicular at the intersection point.
NOTE: Do not run signal or communication wiring and power wiring in the same wire conduit. To avoid
interference, wires with different signal characteristics should be routed separately.
•You can use the type of signal transmitted through a wire to determine which wires should be kept separate.
The rule of thumb is that wiring that shares similar electrical characteristics can be bundled together.
•Keep input wiring and output wiring separate.
•When necessary, it is strongly advised that you label wiring to all devices in the system.
Connecting the Power
Connect the 12 to 48 VDC power line to the IA240’s terminal block. If the power is properly supplied, the Power
LED will light up. The Ready LED will glow a solid green color when the operating system is ready (it may take
30 to 60 seconds for the operating system to boot up).
ATTENTION
This device is intended to be applied by a Power Supply, rated 12
to 48 VDC
, 510 mA minimum requirements,
and it cannot disassemble by operators or service people
.

IA240 Hardware Introduction
1-9
Grounding the IA240
Grounding and wire routing help limit the effects of noise due to electromagnetic interference (EMI). Run the
ground connection from the ground screw to the grounding surface prior to connecting devices.
ATTENTION
This product is intended to be mounted to a well
-grounded mounting surface, such as a metal panel.
SG:
The
Shielded Ground (sometimes called Protected Ground) contact is the
bottom
contact of the 3
-
pin power terminal block connector when viewed from the angle
shown here. Connect the SG wire to an appropriate grounded metal surface.
Connecting to the Network
Connect one end of the Ethernet cable to one of the IA240’s 10/100M Ethernet ports (8-pin RJ45) and the other
end of the cable to the Ethernet network. If the cable is properly connected, the IA240 will indicate a valid
connection to the Ethernet in the following ways:
The LED indicator in the lower right corner glows
a solid green
color when the cable is properly
connected to a 100 Mbps
Ethernet network. The
LED will flash on and off when Ethernet
packets
are being transmitted or received.
Pin Signal
1 ETx+
2 ETx-
3 ERx+
4 ---
5 ---
6 ERx-
7 ---
8 ---
The LED indicator in the lower left corner glows a
solid orange
color when the cable is properly
connected to a 10 Mbps
Ethernet network. The
LED will flash on and off when Ethernet
packets
are being transmitted or received.
Connecting to a Serial Device
Use properly wired serial cables to connect the IA240 to serial devices. The IA240’s serial ports (P1 to P4) use
8-pin RJ45 connectors. The ports can be configured by software for RS-232, RS-422, or 2-wire RS-485. The
precise pin assignments are shown in the following table:
Pin RS-232 RS-422 RS-485
1 DSR --- ---
2 RTS TXD+ ---
3 GND GND GND
4 TXD TXD- ---
5 RXD RXD+ Data+
6 DCD RXD- Data-
7 CTS --- ---
8 DTR --- ---

IA240 Hardware Introduction
1-10
Connecting to the Console Port
The IA240’s console port is an 8-pin RJ45 RS-232 port. The port can be used to connect to the console utility
from a remote console via a V90 or GPRS modem with PPP protocol. The pin definition is the same as for the
serial ports (P1 to P4). For normal data acquisition applications, you should connect to IA240’s serial ports (P1
to P4) via a V90 or GPRS modem. If you would like to use the console port for normal data acquisition
applications, you can set the Console port to start up via PPP protocol.
SD Interface
The IA240 provides an SD socket for storage expansion. Moxa provides an SD flash disk for plug & play
expansion. It allows the user to plug in a Secure Digital (SD) memory card compliant with the SD 1.0 standard
for up to 1 GB of additional memory space, or a Secure Digital High Capacity (SDHC) memory card compliant
with the SD 2.0 standard for up to 16 GB of additional memory space. The SD socket is located on the front side
of the IA240. To install an SD card, you must first remove the SD protection cover to access the socket, and
then plug the SD card directly into the socket. Remember to push in the SD card first if you want to remove it.
USB
The IA240 provides a USB 2.0 host. The IA240 provides a USB 2.0 host, which supports the ability to connect
a flash disk or 2.5 inch hard drive for storing large amounts of data.
DI/DO
The
IA240 has a 4-ch digital input and 4-
ch digital output.
The digital input channels and digital output channels
are
on the same terminal block.
The pinouts for the I/O are
shown
in the figure.