Moxa Technologies W406 WinCE User manual

W406 WinCE
User’s Manual
Third Edition, December 2009
www.moxa.com/product
©2009 Moxa Inc. All rights reserved.
Reproduction without permission is prohibited.

W406 WinCE 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 ©2009 Moxa Inc.
All rights reserved.
Reproduction without permission is prohibited.
Trademarks
MOXA is a registered trademark of Moxa Inc.
All other trademarks or registered marks in this manual belong to their respective manufacturers.
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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 made periodically to the
information in this manual to correct such errors, and these changes are incorporated into new editions of the
publication.
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Table of Contents
Chapter 1 Introduction..................................................................................................1-1
Overview.................................................................................................................................. 1-2
W406 Software ........................................................................................................................ 1-2
Application Development Environment....................................................................... 1-2
Networking and Communications Capabilities ............................................................ 1-3
Supported Servers and Daemons.................................................................................. 1-3
Obtaining the Firmware Build Version.................................................................................... 1-4
Memory and File Systems ....................................................................................................... 1-4
RAM File System......................................................................................................... 1-4
Flash File System.......................................................................................................... 1-4
External File System..................................................................................................... 1-4
Cautions when Using File Systems .............................................................................. 1-4
Using a RAM File System instead of a Flash File System........................................... 1-5
Hive-based Registry................................................................................................................. 1-5
Connect to Network via Ethernet............................................................................................. 1-5
Cellular Networking ................................................................................................................ 1-5
Inserting an SD Card into the Computer.................................................................................. 1-6
Connecting a USB Mass Storage Device to the Computer...................................................... 1-6
Serial Ports............................................................................................................................... 1-6
Console Port ................................................................................................................. 1-6
RS-232/422/485 Serial Ports ........................................................................................ 1-7
Chapter 2 Getting Started.............................................................................................2-1
Starting Your W406 Computer................................................................................................. 2-2
Resetting Your W406 Computer.............................................................................................. 2-2
Boot Loader ............................................................................................................................. 2-3
Operating Your W406 Computer through the Serial Console.................................................. 2-3
Changing the Network Settings............................................................................................... 2-4
Accessing Files with File Sharing............................................................................................ 2-4
Connecting to a GPRS/EDGE Network................................................................................... 2-5
Disconnecting from a GPRS/EDGE Network ......................................................................... 2-7
GPRS/EDGE Connection Error Detection............................................................................... 2-7
SIM Card Utilities.................................................................................................................... 2-8
Sending, Reading, and Deleting SMS Messages ..................................................................... 2-9
Troubleshooting the GPRS/EDGE Connection ..................................................................... 2-10
Operating Your W406 Computer through a Telnet Client...................................................... 2-12
User/Group Management....................................................................................................... 2-12
System Time Management..................................................................................................... 2-13
Adjusting OS Time Zone ....................................................................................................... 2-13
SNTP Client........................................................................................................................... 2-13
Starting and Stopping Services .............................................................................................. 2-14
Troubleshooting Network Connectivity................................................................................. 2-14
Simple Network Management Protocol (SNMP)................................................................... 2-15
Chapter 3 Web-based Management System...............................................................3-1
Logging into the Web-based Management System.................................................................. 3-2
System Information.................................................................................................................. 3-2
Networking/Server Configuration............................................................................................ 3-3
Serial Port Configuration......................................................................................................... 3-3

Process (Thread) Monitoring/Control...................................................................................... 3-4
Launching Processes Automatically ........................................................................................ 3-4
Monitoring and Controlling Services....................................................................................... 3-5
Binary/Text File Management ................................................................................................. 3-6
Appendix A Firmware Upgrade Procedure....................................................................A-1
A. Configure HyperTerminal for the Console Port...................................................... A-2
B. Download and Install the TFTP program................................................................ A-7
C. Download and Upgrade the Firmware through HyperTerminal. ............................ A-8
Appendix B Application Development...........................................................................B-1
Developing an application with VS2005 .................................................................................B-1
Visual C++ Library..................................................................................................................B-2
Visual C++ Examples.................................................................................................B-11
Net Compact Framework Library...............................................................................B-11
Visual C# Examples ...................................................................................................B-21

1
1
Chapter 1 Introduction
The W406 embedded computer has two RS-232/422/485 serial ports, one 10/100 Mbps Ethernet
port, an embedded GSM/GPRS/EDGE module, an SD socket interface for storage expansion, one
USB 2.0 host port, four digital input channels, and four digital output channels. This combination
of features makes the W406 ideal for your wireless embedded applications.
RISC-based W406 embedded computers come with the Windows® CE operating system
pre-installed. Microsoft® Windows® CE 6.0 is an open, scalable, 32-bit operating system that
allows users to build a wide range of innovative, small footprint devices. A typical Windows®
CE-based device is designed for a specific use, and often runs disconnected from other computers,
or distributed as a front-end to a centralized host. Examples include enterprise tools, such as
industrial controllers, communications hubs, point-of-sale terminals, and display devices, such as
HMI, advertisement appliances, and interactive panels.
The following topics are covered in this chapter:
Overview
W406 Software
¾Application Development Environment
¾Networking and Communications Capabilities
¾Supported Servers and Daemons
Obtaining the Firmware Build Version
Memory and File Systems
¾RAM File System
¾Flash File System
¾External File System
¾Cautions when Using File Systems
¾Using a RAM File System instead of a Flash File System
Hive-based Registry
Connect to Network via Ethernet
Cellular Networking
Inserting an SD Card into the Computer
Connecting a USB Mass Storage Device to the Computer
Serial Ports
¾Console Port
¾RS-232/422/485 Serial Ports

W406-CE User’s Manual Introduction
Overview
The W406 is an embedded Linux or WinCE computer that features 2 software selectable
RS-232/422/485 ports, 1 Ethernet port, and quad-band GSM/GPRS/EDGE 900/1800/850/1900
MHz for cellular communication. It also comes with an SD socket, USB host, and 4 digital input
and 4 digital output channels, making it the ideal computer for a variety of industrial applications
such as data acquisition, data processing, protocol conversion, and remote device control and
monitoring via wireless communication. The W406 comes pre-installed with either Linux or
WinCE 6.0, and offers a reliable and powerful computing platform for industrial environments.
Programmers will find that the W406 provides a convenient programming environment for
producing bug-free industrial applications at a lower cost.
W406 Software
The W406 embedded computer is a ready-to-run, RISC-based, “headless” computer with a robust
and network-centric design. It uses the Microsoft® Windows® CE 6.0 operating system.
Developers of embedded communication applications will find that the open programming
environment makes the W406 well-suited for both new system development and legacy system
migration.
Application Development Environment
yC Libraries and Run-times—Compared to the C libraries and run-times used on a desktop
PC running Windows®, the C libraries and run-times on a W406 WinCE are a subset of the
WIN32 APIs. The system supports a full ANSI C run-time, standard input/output library,
standard input/output ASCII library, and standard ASCII string functions. In addition, C++
compiler exception handling and Run-Time Type Information (RTTI) equivalent to desktop
C++ compilers are supported.
yActive Template Library—Active Template Library (ATL) for Windows CE is a C++
template library designed to help create small, fast Microsoft® ActiveX® servers. An ActiveX
server is a dynamic-link library (DLL) or executable (.exe) that contains one or more
Component Object Model (COM) components. COM components can be anything from a
simple dialog box to a full ActiveX control.
yComponent Services (COM)—The Common Object Model (COM) is an operating
system-independent, object-oriented system for creating binary software components that can
interact with other COM-based components in the same process space, in other processes, or
on remote machines.
yMicrosoft® .NET Compact Framework 2.0 with service pack 2—Offers a choice of
languages, initially Microsoft® Visual Basic® and Microsoft® Visual C#, and eliminates the
common problems of language interoperability.
yXML—support for XML Query Language (XQL)
yWinsock 2.2—Provides enhanced capabilities over Winsock 1.1, including installable service
providers for additional third-party protocols, and Media sense.
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W406-CE User’s Manual Introduction
Networking and Communications Capabilities
ySimple Network Management Protocol (SNMP)—Monitors remote connections to the
network.
ySimple Network Time Protocol (SNTP) Client—Provides support for synchronizing the
device’s system time with an SNTP server, and supports Daylight Savings Time.
ySerial Communications—In addition to the 16550 UART driver bound to a debug port and
the console port, a special driver for 2 additional Moxa serial ports is also included.
yNetwork Utilities (IpConfig, Ping, Route)—Utilities for troubleshooting various network
problems.
yTCP/IP—Includes IP, Address Resolution Protocol (ARP), Internet Control Message Protocol
(ICMP), Internet Group Membership Protocol (IGMP), Transmission Control Protocol (TCP),
User Datagram Protocol (UDP), name resolution and registration, and DHCP.
Supported Servers and Daemons
yTelnet Server—A sample server that allows remote administration through a standard Telnet
client.
yFTP Server—A sample server used for transferring files to and from remote computer
systems over a network using TCP/IP.
yFile Server—The File Server functionality in Microsoft® Windows® CE enables clients to
access files and other resources over the network.
yDial-up Networking—Consists of RAS client API and the Point to Point Protocol (PPP).
RAS and PPP support Extensible Authentication Protocol (EAP) and RAS scripting.
yWatchdog—A CPU Hardware function for reset CPU in a user specified time interval. You
must call the MOXA library function to trigger it.
yWeb Server (HTTPD)—Includes ASP, ISAPI Secure Socket Layer support, SSL 2, SSL 3,
Transport Layer Security (TLS/SSL 3.1) public key-based protocols, and Web Administration
ISAPI Extensions.
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W406-CE User’s Manual Introduction
Obtaining the Firmware Build Version
There are two ways to obtain the firmware version of W406 embedded computers. This
information is particularly important for identifying the features supported by the computer.
yExamine the welcome message after you log on to the computer.
yLog on to the web-based management system (described in a later chapter) to view the system
information.
Memory and File Systems
The 32 MB of SDRAM is divided into two main parts. The main memory, which houses the
operating system and user applications, has a capacity of about 20 MB. The kernel image occupies
the remainder of the memory space.
RAM File System
The internal file system in the W406 computer controls access to flash and also provides file
storage in the object store, which is in the RAM. The root directory is a RAM file system of size 4
MB. Child directories such as “Windows,” “Temp,” “My Documents,” “Network,” and “Program
Files” are under the root directory. They can be used for storing temporary files for your
applications. However, do not place persistent files or applications in these directories because
they will be deleted when the system is shut down. Instead, place them in the “NORFlash”
directory.
Flash File System
The Flash file system provides persistent storage for applications and related data, even when the
main power supply is lost. The system integrates the read-only files that are stored on the Flash
with the read/write files from both applications and users. A child directory named “NORFlash” is
created under the root; the size of the directory is 3 MB.
External File System
The additional file systems from USB and SD storage devices are placed in the root of the internal
file system. If you intend to use these devices to port data between your PC and the W406
computer, you should format them using the FAT file system on your PC.
Cautions when Using File Systems
We recommend storing your programs only in the on-board NOR Flash. Please store the log data
generated by your programs in an external storage device such as an SD card or Network File
System. Note that a Network File System will generally provide more storage space than the SD
card. In addition, it is easier to replace a full or damaged Compact Flash than an on-board NOR
Flash.
A NOR Flash has a life cycle of 100,000 write operations in block (128 KB) level, and does not
support BBM (Bad Block Management). For this reason, the FAT file system would not know
when a flash block has reached its cycle, and would try to scan the block repeatedly.
FAT sequentially searches for free memory space for write operations. After deleting many files,
the memory space could become fragmented, making it more difficult to search for free space. If
your program updates (deletes and then creates) a file frequently, it is quite possible that the
program writes data to the same flash area. In the long run, FAT would be blocked when scanning
the area and would cause the operating system to hang.
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W406-CE User’s Manual Introduction
An SD card has its own life cycle. Since most SD cards are made from a NAND Flash, their
hardware controllers implement BBM. This feature allows FAT to skip bad blocks if they exist.
Furthermore, the memory space of an SD card is much larger than that of the NOR Flash. Using
this space cautiously will ensure that its life cycle is not exceeded. When creating a file for storing
log data, we suggest creating a large empty file (e.g., 30 MB), and then writing data evenly to that
space. When the space is used up, the program rewinds the write operations. As a result, the
number of write operations to each block is reduced.
Using a RAM File System instead of a Flash File System
Even though data in the RAM file system will be deleted after shutting off the power, using the
RAM file system has several advantages over using the Flash file system, including faster
read/write access and not needing to deal with the life cycle issue.
For important applications that relay data back to the host directly, you should write the necessary
log data to the RAM file system. After the host accesses the data, the application erase the data,
freeing up the memory space for further use.
The embedded computer has limited resources, and designers should decide if storing data in a file
system is really necessary. If it is necessary, be sure to choose the most appropriate file system.
Hive-based Registry
The W406 uses a hive-based registry, not a RAM-based registry. A hive-based registry stores
registry data inside files, or hives, which can be kept on any file system. This removes the need to
perform a backup and restore on power off.
Under default settings, registry data will be auto flushed. If AutoFlush is disabled, the
RegFlushKey function is needed to change the registry value in your applications. The
AutoFlush.exe utility is provided to change the auto-flush setting.
Type autoflush -d to disable the auto-flush setting.
\>autoflush -d
Or type autoflush -e to enable the auto-flush setting.
\> autoflush -e
Or just type autoflush to display the current status.
Connect to Network via Ethernet
The W406 computer offers a 10/100M RJ-45 Ethernet port for network redundancy.
Cellular Networking
The W406 computer has been embedded with a GSM/GPRS/EDGE cellular module for a reliable
and stable wireless communication. It supports quad-band GSM/GPRS/EDGE 850/900/1800/1900
MHz, and GPRS/EDGE Class 10. Meanwhile, it offers SMS tunnel mode for auto configuration
and SIM card authentication.
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W406-CE User’s Manual Introduction
Inserting an SD Card into the Computer
The W406 is equipped with an SD slot. When an empty SD card is inserted into the slot, the
computer automatically formats it in the FAT file system. This process takes a few minutes to
complete. After an SD card is inserted, the embedded computer will create a directory named
“StorageDisk” under the root directory. The “StorageDisk” directory controls access to the SD
storage space. The embedded computer will create a directory called “StorageDisk2” if another
USB storage device is plugged in at a later time.
Connecting a USB Mass Storage Device to the Computer
The USB mass storage device is highly portable between your PC and a computer that does not
support the TFAT system. We suggest that you format your devices with the FAT format. When
the first USB storage device is plugged into the slot on the back of the computer, a directory
named “USBDisk” under the root directory is created in the internal file system as a link to the
storage device. The embedded computer will create a directory called “StorageDisk2” if another
SD storage device is plugged in at a later time.
The following table lists USB mass storage devices that have been tested successfully for
compatibility.
Vendor Device Name Size
CRUZER mini 128 MB
Intel Flash memor
y
128 MB
Aboco
m
128 MB
P
Q
I 256 MB
Transcend JetFlash 512 MB
Transcend JetFlash 1 GB
ATTENTION
Some USB storage devices may not be detected by the system. We suggest that you use one of
the devices listed in the above table, since these USB mass storage devices have been tested
successfully for compatibility.
Serial Ports
Console Port
The serial console port, located on the bottom panel is a 4-pin pin-header RS-232 port. It is
designed for serial console terminals, which are useful for viewing boot-up messages, system
configuration and develop applications.
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W406-CE User’s Manual Introduction
RS-232/422/485 Serial Ports
The W406-CE embedded computer contains two software-selectable RS-232/422/48 serial ports
for reliable and stable serial communication. They both support non-standard baudrate settings of
up to 921,600 bps.
To configure the interface of the serial ports, simply use the setinterface command in telnet or
console mode. Please note that Port 1 refers to COM1, while Port 2 refers to COM2.
You may use the setinterface –h command to learn the configuration syntax. For example, to
configure Port 1 as RS-422, enter SetInterface COM1: 2.
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2
2
Chapter 2 Getting Started
In this chapter, we explain how to use a PC to operate a W406 embedded computer. We will refer
to the PC that connects to the W406 as the development workstation, and the W406 embedded as
the target computer.
development workstation = PC used to operate the embedded computer
target computer = W406 embedded computer
In addition, we describe the steps you should follow to carry out certain operations, such as setting
the system time and troubleshooting network connectivity. Some of these operations can be carried
out using system commands after gaining access to the target computer, and others can be carried
out using a web-based management system. The web-based management system is described in a
later chapter.
The following topics are covered in this chapter:
Starting Your W406 Computer
Resetting Your W406 Computer
Boot Loader
Operating Your W406 Computer through the Serial Console
Changing the Network Settings
Accessing Files with File Sharing
Connecting to a GPRS/EDGE Network
Disconnecting from a GPRS/EDGE Network
GPRS/EDGE Connection Error Detection
SIM Card Utilities
Sending, Reading, and Deleting SMS Messages
Troubleshooting the GPRS/EDGE Connection
Operating Your W406 Computer through a Telnet Client
User/Group Management
System Time Management
Adjusting OS Time Zone
SNTP Client
Starting and Stopping Services
Troubleshooting Network Connectivity
Simple Network Management Protocol (SNMP)

W406-CE User’s Manual Getting Started
Starting Your W406 Computer
Connect the SG wire to the shielded contact located in the upper left corner of the W406 computer,
and then power it up by connecting it to the power adaptor. It takes about 30 to 60 seconds for the
system to boot up. Once the system is ready, the “Ready” LED will light up. The light will stay lit
until you shut down the computer.
Resetting Your W406 Computer
When the target computer stops responding, or an application locks up, or the target computer fails
to work normally, you may need to restart or reset the target computer’s operating system. We
provide four ways to restart or reset the operating system.
Warm-Start: When the computer is powered on, insert a pin into the “Reset” hole next to the
serial console, and hold for 1 to 2 seconds. The computer will reboot automatically.
Cold-Start: Unplug the power line and then plug it back in again. The computer will reboot
automatically.
Resetting to Factory Defaults: If the computer is not working properly, and you want to reset it
back to factory default settings, press and hold the “Reset” button for at least 5 seconds. The
buzzer will sound while the factory default settings are being loaded. After the factory defaults
have been loaded, the computer will reboot automatically.
Resetting the System: In rare circumstances, the FAT file system may be damaged by executing
improper applications, or due to an unstable power supply. In this case, the computer may fail to
boot up if the FAT table crashes. In order to get the system back up and running, you will need to
format the flash disk and reset the operating system. Note that all user files and configurations will
be erased. The following steps show how to format the flash disk through boot loader utilities.
Step 1: Power off the W406 embedded computer.
Step 2: Connect the W406 to your PC using the console port cable.
Step 3: Start a terminal program with the settings: Baudrate = 115200, no hardware flow control,
8 N 1, character set VT100.
Step 4: Hold in the “DEL” key on your PC.
Step 5: Power on the W406. You will be guided to boot loader utility menu.
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W406-CE User’s Manual Getting Started
Step 6: Type “2” for “Format User Disk”, and then press Enter.
Step 7: After a few seconds, you will see the bootloader menu again. Unplug the power line and
then plug it back again. It takes about 3 minutes to reset the operating system.
Boot Loader
For addressing OS stability issues, we provide an easy and useful function with Boot Loader for
the following tasks:
1. Reset to default: you can set the flag to reset WinCE 6.0 to factory default settings.
2. Format storage flash: The CE 6.0 file system is an FAT that can be damaged by unstable
power or improper application execution. If the FAT table crashes, do not start up the OS. You
can, however, format the file system and reboot your W406.
At startup, the W406 will check the file system and re-partition it if the file system is empty.
3. Firmware upgrade: If you find a new firmware from Moxa’s website, you can upgrade the
firmware with this function (details in appendix A).
Go to the boot loader menu from serial console:
Step 1: Power off your W406 device.
Step 2: Make sure the serial console wire is connected to your PC correctly.
Step 3: Go to [Start] Æ[Programs] Æ[Accessories] Æ[Communication] Æ[Terminal] to
create a new terminal communication with the following settings: baudrate of 115200,
no hardware flow control, 8 N 1, and character set VT100.
Step 4: Activate this terminal window on your PC.
Step 5: Hold “DEL” key continuously.
Step 6: Power on the W406 device.
Operating Your W406 Computer through the Serial Console
The serial console port (located on the bottom panel) gives users a convenient way of connecting
the development workstation to the console utility of the target computer. This method is
particularly useful when using the computer for the first time.
After you have wired a serial cable, go back to the development workstation and start a terminal
program (e.g., HyperTerminal) by using the settings shown below for the serial console port.
Baudrate 115200 b
p
s
Parit
y
N
one
Data bits 8
Sto
p
bits 1
Flow Control
N
one
Terminal ANSI
After a successful connection, type the login name and password as requested to log on to the
computer. The default values are both admin.
Login: admin
Password: admin
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W406-CE User’s Manual Getting Started
Changing the Network Settings
The W406 computer has one network interface. There is no default IP address; the default network
setting is configured as DHCP. If you have a DHCP server, simply connect the W406 to your
network using an Ethernet cable. An IP address will automatically be appointed to the W406. If
you would like to use a fixed IP address, you should use netconfig command.
The netconfig command is a utility that is used to complete the task. Before changing the IP
addresses, type netconfig -h to list the help for this command.
\> netconfig -h
Usage: netconfig -n <AdapterName | Alias> [-EnableDHCP] [-i <IP address>] [-m < etmask>]
[-g <gateway>] [-d <DNS server>] [-w <WINS Server>] [-noask] e.g.: netconfig -n
IXP425ETHNPE1 -i 192.168.10.101 -g 192.168.10.254: netconfig -n CS89501 -i
192.168.12.101 -m 255.255.0.0
Alias: LAN1=CS89501
For example, if your development workstation has a LAN port at 192.168.1.1, and the IP address
of the Domain Name Server (DNS) is 192.168.2.6, execute the following command.
\> netconfig –n LAN1 –i 192.168.1.5 –m 255.255.255.0 –g 192.168.1.254 –d 192.168.2.6
Use the netconfig command to view the updated settings.
\> netconfig
LAN1 Interface Configuration:
IP Address: 192.168.1.5
SubNet Mask: 255.255.255.0
Gateway: 192.168.1.254
DNS: 192.168.2.6
Accessing Files with File Sharing
The W406-CE provides a File Server feature for efficient file transfer to the W406-CE. Navigate
to Start ÆRun and input \\x.x.x.x (the device IP), and then you should see the following
authentication window. Enter the username and password to access the W406-CE.
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W406-CE User’s Manual Getting Started
After logging in, enter the netshare -h command to learn how to configure shared folders.
For example, netshare -s docs “\My Documents” -a admin will share the “My Documents”
folder as “docs” for the user “admin”.
Connecting to a GPRS/EDGE Network
Before connecting to a GPRS/EDGE network, make sure the SIM card is properly installed and
the antenna is connected. (Please refer to W406 Hardware User’s Manual for installation details.)
Please note the SIM card must be installed when the embedded computer is powered off. The LED
indicators on the top panel can be used to check the signal strength. (A background process
“gprssignalled.exe” is responsible for this task.)
NOTE: Make sure that Mobile Equipment Error Message Format (CMEE) has not been set,
or the GPRS connection functions may return incorrect values.
1. To create a connection, use the following command:
/> gprs_connect
You can connect to the GPRS/EDGE network using gprs_connect.exe. For more details, please see
the command syntax gprs_connect –h.
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W406-CE User’s Manual Getting Started
When the GPRS/EDGE has successfully connected, you can use gprs_connection_status.exe to
check the GPRS/EDGE connection status or use ipconfig.exe to verify the Network Status.
2. To create a permanent GPRS/EDGE connection:
If the connection fails, use the gprs_reconnect.exe command to re-connect to the GPRS network
again. For more details, please see the command syntax gprs_reconnect –h.
Use gprs_disconnect –r to stop the gprs_reconnect.exe daemon.
3. To re-create an entry for connection, use the following command.
If you would like to change your SIM card or to use another APN name, you must execute the
“gprs_connect –d” command to re-detect the new parameters for the current RAS entry.
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W406-CE User’s Manual Getting Started
Disconnecting from a GPRS/EDGE Network
To disconnect from the GPRS network, type
/>gprs_disconnect
After a few seconds, the embedded computer will disconnect from the GPRS/EDGE network. A
notification message will NOT be shown.
GPRS/EDGE Connection Error Detection
To detect connection problems, gprs_diagnose.exe allows users to diagnose connection problems
during the network connection process. This utility will execute a series of steps to check whether
the configuration is correct or not. Most GPRS/EDGE connection problems can be indentified
with this command.
If gprs_diagnose.exe displays the message The Cellular modem is unresponsive, you will need
to reset the cellular modem by pushing the Cellular Reset Button. It is located on the front panel,
just beside the SD/SIM card socket cover.
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W406-CE User’s Manual Getting Started
SIM Card Utilities
The W406 provides some utilities for manipulating the PIN code.
NOTE: Make sure your PIN code is correct. After three failed attempts at entering the PIN
code, the SIM card will be locked and the PUK code will be required to unlock the SIM card.
After ten failed attempts at entering the PUK code, the SIM card will be invalidated and no
longer usable.
1. To input your PIN code:
/> sim_input_pin
2. To verify the SIM card status.
/> sim_get_pin_status
There are 4 possibilities for SIM card status: Ready, No SIM card, Need PIN code, and Need
PUK code.
3. To enable or disable the PIN code authentication.
/>sim_enable_pin
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W406-CE User’s Manual Getting Started
4. To change the PIN code of the SIM card.
/> sim_change_pin
5. To unlock the SIM card, if your SIM card status is Need PUK code.
/> sim_unlock
Sending, Reading, and Deleting SMS Messages
1. To send an SMS message
/> sms_send_text_msg
2. To read an SMS Message
/> sms_read_text_msg
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