Moxa Technologies IA3341 Instructions for use

IA3341 Hardware User’s Manual
First Edition, May 2010
www.moxa.com/product
© 2010 Moxa Inc. All rights reserved.
Reproduction without permission is prohibited.

IA3341 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
Copyright ©2010 Moxa Inc.
All rights reserved.
Reproduction without permission is prohibited.
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
Model Descriptions and Package Checklist..............................................................................................1-2
Product Features ................................................................................................................................1-2
Product Hardware Specifications ...........................................................................................................1-3
Hardware Block Diagram .....................................................................................................................1-5
2. Hardware Introduction ..................................................................................................................... 2-1
Appearance........................................................................................................................................2-2
LED Indicators....................................................................................................................................2-3
Reset to Default Button .......................................................................................................................2-3
Real Time Clock..................................................................................................................................2-4
Placement Options ..............................................................................................................................2-4
DIN-Rail Mounting .......................................................................................................................2-4
Wall or Cabinet Mounting .............................................................................................................2-5
3. Hardware Connection Description ..................................................................................................... 3-1
Wiring Requirements...........................................................................................................................3-2
Connecting the Power ..................................................................................................................3-2
Grounding the Unit ......................................................................................................................3-2
Connecting to the Console Port.............................................................................................................3-3
Connecting to the Network...................................................................................................................3-3
Connecting to a Serial Device ...............................................................................................................3-4
Connecting to the DI/DO .....................................................................................................................3-4
Digital Input Wiring .....................................................................................................................3-4
Digital Output Wiring ...................................................................................................................3-5
Connecting to the AI and Thermocouples ...............................................................................................3-5
Inserting the SD Card .........................................................................................................................3-5
USB Hosts .........................................................................................................................................3-6
A. Regulatory Approval Statements....................................................................................................... A-1

1
1. Introduction
Thank you for purchasing the Moxa IA3341 RISC-based industrial ready-to-run embedded computer. The
IA3341 is based on the MOXA ART ARM9 industrial processor, and features 2 RS-232/422/485 serial ports, dual
LANs, 4 digital input channels, and 4 digital output channels. In addition, the IA3341 computer has 2 analog
input channels and 2 thermocouple channels, making it the ideal solution for a variety of industrial applications,
such as solar power and environmental monitoring. This manual introduces the IA3341’s hardware. After a
brief introduction of the hardware features, the manual focuses on installation and configuration.
The following topics are covered in this chapter:
Overview
Model Descriptions and Package Checklist
Product Features
Product Hardware Specifications
Hardware Block Diagram

IA3341 Hardware User's Manual Introduction
1-2
Overview
The IA3341 is based on the MOXA ART ARM9 industrial processor, and features 2 RS-232/422/485 serial ports,
dual LANs, 4 digital input channels, and 4 digital output channels. In addition, the IA3341 computer has 2
analog input channels and 2 thermocouple channels, making it the ideal solution for a variety of industrial
applications.
By supporting multiple interfaces, the IA3341 can connect to different types of devices, making it particularly
well-suited for solar power applications. Meters, sensors, and other devices can all connect easily to the IA3341,
and with its powerful computing platform, the IA3341 can be used as a front-end controller to perform
industrial tasks, such as data acquisition, data computing, protocol conversion, and data analysis.
The industrial-grade design of the IA3341 provides a robust, reliable computer that can fit any industrial
environment, and the open source Linux platform gives programmers a convenient tool for developing
sophisticated, bug-free application software at a lower cost.
In addition, the built-in Modbus TCP library and web server help users easily monitor and retrieve the AI data,
which is particularly useful for applications, such as solar power and environmental monitoring.
Model Descriptions and Package Checklist
IA3341-LX
RISC-based embedded computer with 2 serial ports, 4 DIs, 4 DOs, 2 AIs, 2 thermocouples, dual LANs, SD,
Linux
The IA3341 is shipped with the following items:
•IA3341-LX embedded computer
•Wall mounting kit
•Ethernet cable: RJ45 to RJ45 cross-over cable, 100 cm
•CBL-4PINDB9F-100: 4-pin pin header to DB9 female console port cable, 100 cm
•Terminal block to power jack converter
•Document and Software CD or DVD
•Quick Installation Guide (printed)
•Product Warranty Statement (printed)
NOTE: Notify your sales representative if any of the above items are missing or damaged.
Product Features
•Moxa ART 32-bit ARM 9 Industrial Processor
•64MB RAM, 16 MB Flash onboard
•2 software selectable 2 RS-232/422/485 serial ports
•50 bps to 921.6 Kbps serial speed, supporting non-standard baudrates
•4 DIs and 4 DOs with 3KV digital isolation protection
•2 AIs and 2 thermocouple inputs; sensor types J,K,T,E,R,S,B,N
•Dual 10/100 Mbps Ethernet for network redundancy
•SD socket for storage expansion
•USB 2.0 host
•Supports Modbus TCP library to retrieve AI and thermocouple data
•Ready-to-run Linux Kernel 2.6 Platform
•DIN-Rail and wall mount installation
•Robust, fanless design

IA3341 Hardware User's Manual Introduction
1-3
Product Hardware Specifications
Computer
CPU: MOXA ART ARM9 32-bit RISC CPU, 192 MHz
OS (pre-installed): Embedded Linux
DRAM: 64 MB onboard
Flash: 16 MB onboard
USB: USB 2.0 host x 1 (type A connector)
Storage
Storage Expansion: SD slot
Ethernet Interface
LAN: 2 auto-sensing 10/100 Mbps ports (RJ45)
Magnetic Isolation Protection: 1.5 KV built-in
Serial Interface
Serial Standards: 2 RS-232/422/485 ports, software-selectable (DB9 male)
ESD Protection: 15 KV for all signals
Console Port: RS-232 (TxD, RxD, GND), 4-pin header output (115200, n, 8, 1)
Serial Communication Parameters
Data Bits: 5, 6, 7, 8
Stop Bits: 1, 1.5, 2
Parity: None, Even, Odd, Space, Mark
Flow Control: RTS/CTS, XON/XOFF, ADDC® (automatic data direction control) for RS-485
Baudrate: 50 bps to 921.6 Kbps (supports non-standard baudrates; see user's manual for details)
Serial Signals
RS-232: TxD, RxD, DTR, DSR, RTS, CTS, DCD, GND
RS-422: TxD+, TxD-, RxD+, RxD-, GND
RS-485-4w: TxD+, TxD-, RxD+, RxD-, GND
RS-485-2w: Data+, Data-, GND
Digital Input
Input Channels: 4, source type
Input Voltage: 0 to 30 VDC
Digital Input Levels for Dry Contacts:
• Logic level 0: Close to GND
• Logic level 1: Open
Digital Input Levels for Wet Contacts:
• Logic level 0: +2 V max.
• Logic level 1: +4 V to +30 V
Connector Type: 10-pin screw terminal block (4 points, COM, GND)
Isolation: 3 KV digital isolation
Digital Output
Output Channels: 4, sink type, keeps output status after hot system reset
Output Range: 5 to 30 VDC at open collector to 30 V
Max. Load: 30 mA
Power Dissipation: 300 mW
Connector Type: 10-pin screw terminal block (4 points, GND)
Isolation: 3 KV digital isolation
Analog Input
Input Channels: 2
Resolution: 16 bits
I/O Mode: Voltage/Current
Input Range: 0-10 V, 4-20 mA

IA3341 Hardware User's Manual Introduction
1-4
Accuracy:
• ±0.1% FSR @ 25°C
• ±0.3% FSR @ 10°C and 60°C
Sampling Rate: 12 samples/sec
Input Impedance: 200K ohms
Thermocouple Input
Input Channels: 2
Sensor Types: J, K, T, E, R, S, B, N
Sampling Rate: 12 samples/sec
Resolution: 16 bits
Accuracy:
• ±0.1% FSR @ 25°C
• ±0.3% FSR @ 10°C and 60°C
Input Impedance: 1M ohms
LEDs
System: Power, Ready, Storage
LAN: 10M/Link x 2, 100M/Link x 2 (on connector)
Serial: TxD x 2, RxD x 2
Reset Button: Supports "Reset to Factory Default"
Physical Characteristics
Housing: SECC sheet metal (1 mm)
Weight: 585 g
Dimensions: 116 x 35 x 146 mm (2.95 x 1.38 x 3.71 in)
Mounting: DIN-Rail, wall
Environmental Limits
Operating Temperature: -10 to 60°C (14 to 140°F)
Operating Humidity: 5 to 95% RH
Storage Temperature: -20 to 80°C (-4 to 176°F)
Anti-vibration: 2 g rms @ IEC 60068-2-34, random wave, 5-500 Hz, 1 hr per axis
Anti-shock: 20 g @ IEC 60068-2-27, half sine wave, 11 ms
Power Requirements
Input Voltage: 12 to 48 VDC (3-pin terminal block, V+, V-, SG)
Power Consumption:
5 W (with no load on the USB port)
‧106 mA @ 48 VDC
‧191 mA @ 24 VDC
‧351 mA @ 12 VDC
8.5 W (with load on the USB port)
‧176 mA @ 48 VDC
‧330 mA @ 24 VDC
‧661 mA @ 12 VDC
Regulatory Approvals
EMC: FCC, CE (Class A)
Safety: UL/cUL, CCC, LVD
Reliability
Alert Tools: Built-in buzzer and RTC (real-time clock)
Automatic Reboot Trigger: Built-in WDT (watchdog timer)
Warranty
Warranty Period: 5 years
Details: See www.moxa.com/warranty

IA3341 Hardware User's Manual Introduction
1-5
Hardware Block Diagram

2
2. Hardware Introduction
The IA3341 embedded computers are compact and rugged, making them suitable for industrial applications.
The LED indicators allow users to monitor performance and identify trouble spots quickly, and the multiple
ports can be used to connect a variety of devices. The IA3341 comes with a reliable and stable hardware
platform that lets you devote the bulk of your time to application development. In this chapter, we provide
basic information about the embedded computer’s hardware and its various components.
The following topics are covered in this chapter:
Appearance
LED Indicators
Reset to Default Button
Real Time Clock
Placement Options
DIN-Rail Mounting
Wall or Cabinet Mounting

IA3341 Hardware User's Manual Hardware Introduction
2-2
Appearance
Front View
10/100 Mbps
LAN Port x2
(RJ45)
USB 2.0 Host x1
(type A)
Serial LED x 4
(Tx, Rx)
DI x 4
DO x 4
System LED x 3
(Power, Ready, Storage)
Top & Bottom Views
Serial Port x2
(RS-232/422/485, DB9)
Console Port
AI x 2
Thermocouple
Input x 2
Power Input
SD Socket
Reset to Default
Button