Atop ABLELink GW21W User manual

Atop ABLELink

®

Serial-Ethernet

Server GW21W

User Manual

Version 2.3

Updated on 2004/08/18

Tel: 886-3-5508137

Fax: 886-3-5508131

www.atop.com.tw

User manual Version 2.3

ABLELink Serial-Ethernet Server

GW21W

Important Announcement

The information contained in this document is the property of Atop Technologies, Inc. and is supplied for the sole purpose of the operation and maintenance of products of Atop Technologies, Inc. No part of this publication is to be used for any other purposes, and it is not to be reproduced, copied, disclosed, transmitted, stored in a retrieval system, or translated into any human or computer language, in any form, by any means, in whole or in part, without the prior express written consent of Atop Technologies, Inc.

Published by

Atop Technologies, Inc.

2F, No. 146, Sec. 1, Tung-Hsing Rd.

Jubei City, Hsinchu 302

Taiwan, R.O.C.

Tel: 886-3-5508137

Fax: 886-3-5508131 www.atop.com.tw

Copyright © 2003 Atop Technologies, Inc. All rights reserved.

All other product names referenced herein are registered trademarks of their respective companies.

Copyright © 2003 Atop Technologies, Inc.

All rights reserved. Designed in Taiwan.

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GW21W

FCC WARNING

Class B for Serial-Ethernet Server (Model GW21W)

This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and radiates radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.

Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expenses.

A shielded-type power cord is required in order to meet FCC emission limits and also to prevent interference to the nearby radio and television reception. It is essential that only the supplied power cord can be used.

Use only shielded cables to connect other devices to this equipment by RS-232 / RS-485 ports.

Be cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment.



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GW21W

Content

IMPORTANT ANNOUNCEMENT....................................................................1

1. INTRODUCTION.........................................................................................5

1.1 P ACKAGING ........................................................................................................................................... 5

1. 2 A PPLICATION C ONNECTIVITY .................................................................................................................. 6

2. HARDWARE INSTALLATION ....................................................................8

2.1 C ONFIGURATION .................................................................................................................................... 8

2.2

A SSIGNING A NEW IP A DDRESS BY ARP COMMAND .................................................................................. 8

2.3 A UTO IP ................................................................................................................................................ 9

2.4

TCP/IP P ORT N UMBER .......................................................................................................................... 9

3. SOFTWARE CONFIGURATION ...............................................................10

3.1

C ONFIGURATION SET BY MONITOR .

EXE UTILITY ...................................................................................... 10

3.2

C ONFIGURATION SET BY T ELNET ........................................................................................................... 10

3.3 C ONFIGURATION SET BY HYPER TERMINAL CONSOLE UTILITY .................................................................. 24

3.4 C ONFIGURATION SET BY WEB BROWSER ................................................................................................ 25

4 VIRTUAL COM MODE...............................................................................30

4.1 S ETUP OF A V IRTUAL COM DRIVER ....................................................................................................... 30

4.2 V IRTUAL COM COMMUNICATION ........................................................................................................... 31

4.2.1R

UN S ERIAL /IP FOR ATOP PROGRAM ON MONITORING PC .................................................................. 32

5. SNMP SETUP ...........................................................................................35

5.1 SNMP N ETWORK M ANAGEMENT P LATFORM ......................................................................................... 35

5.2 U SING N ETWORK V IEW A S A N E XAMPLE ................................................................................................ 35

6. START WRITING YOUR OWN APPLICATIONS......................................38

6.1 P REPARING T HE S YSTEM ..................................................................................................................... 38

6.2 R UNNING T HE S AMPLE P ROGRAM ........................................................................................................ 38

6.2.1TCPTEST in Visual Basic ..........................................................................................................38

6.2.2 TCPTEST2 in Visual C .............................................................................................................39

7. DIAGNOSTICS .........................................................................................40

7.1 U SE S TANDARD TCP/IP U TILITY PING C OMMAND .................................................................................. 40

7.2 U SE MONITOR .

EXE C ONFIGURATION U TILITY P ROGRAM ......................................................................... 40

7.3 U SE TCPTEST.EXE OR TCPTEST2.EXE S AMPLE P ROGRAM ............................................................. 41

APPENDIX A: GW21W SERIAL-ETHERNET SERVER

SPECIFICATIONS.........................................................................................42

A.1. H ARDWARE S PECIFICATIONS ............................................................................................................... 42

A.2. S OFTWARE S PECIFICATIONS ............................................................................................................... 43

A.3 C ONNECTOR P IN A SSIGNMENTS ........................................................................................................... 43

A.3.1 COM Port..................................................................................................................................43

A.4

B UZZER /LED M ESSAGE ...................................................................................................................... 44



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GW21W

APPENDIX B. UPGRADE SYSTEM SOFTWARE .......................................45

B.1 U PGRADE P ROCEDURES ...................................................................................................................... 45

B.2 C RITICAL I SSUES OF U PGRADING ......................................................................................................... 46

B.3 E RROR M ESSAGES .............................................................................................................................. 46

APPENDIX C. HARDWARE CONFIGURATION ..........................................48

C.1 D ISABLE S YSTEM F IRMWARE ............................................................................................................... 48

C.2 C HOOSE T YPE OF COM P ORTS ........................................................................................................... 48

APPENDIX D CONFIGURATION UTILITY...................................................49

D.1 R UN THE UTILITY ................................................................................................................................. 49

D.2 D ETECT O PERATIONAL D EVICES .......................................................................................................... 49

D.3 C ONFIGURE D EVICES .......................................................................................................................... 49



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GW21W

1. Introduction

The Atop GW21W Serial-Ethernet Server is a gateway between Ethernet (TCP/IP) and RS-232/RS-485 communications. The information transmitted by GW21W is transparent to both host computers (Ethernet) and devices (RS-232/RS-485). Data coming from the Ethernet (TCP/IP) is sent to the designated

RS-232/RS-485 port and data being received from RS-232/RS-485 port is sent to the Ethernet (TCP/IP) transparently.

In the computer integration manufacturing or industrial automation area, the Atop GW21W Serial-Ethernet

Server is used for field devices to direct connect to Ethernet network. Terminal Server (main control program run in GW21W) transforms whatever data received from RS-232/RS-485 to TCP/UDP port then connect devices to the Ethernet network via a single application program or multiple application programs.

Many control devices provide the ability to communicate with hosts through RS-232/RS-485 however

RS-232/RS-485 serial communication has its limitations. For one, it is hard to transfer data through a long distance. With Atop GW21W, it is possible to communicate with a remote device in the Intranet environment or even in the Internet and thus, increases the communication distance dramatically.

GW21W from Atop Technologies Inc. offers two RS-232/ RS-485 ports, one wireless Ethernet

(IEEE802.11b, 11Mbps) and Watch-Dog Timer etc.

1.1 Packaging

Atop Serial-Ethernet Server x 1

Atop Serial-Ethernet Server quick start guide x 1

Power adapter (AC 110V or 230V to DC 12V ) x 1

Product CD containing configuration utility and sample programs x 1



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GW21W

1. 2 Application Connectivity



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GW21W

2. Hardware Installation

Prepare necessary cables, hub, power cord and RS232/RS485 connector.

Place GW21W in the access point covered area.

Connect a serial device to a serial port of GW21W, make sure the right connection of either RS-232 or

RS-485.

Plug in DC-12V, the buzzer will beep and LED will blink if GW21W functions normally. Please refer to

Appendix A.4 to see all of LED messages.

Use monitor.exe configuration utility in the product CD or diskette to diagnose GW21W. If it starts up successfully, you are able to find the IP and MAC addresses of GW21W. You can change the network parameters of GW21W to join your LAN by changing its IP address, gateway IP address and subnet mask.

Note: If there are more than one access points, the access point’s ESSID must be the same.

2.1 Configuration

Atop GW21W Serial-Ethernet Server is shipped with default settings shown in the following table:

Property Default Value

IP Address 10.0.50.100

Gateway 10.0.0.254

Subnet Mask 255.255.0.0

User Name Admin

Password Null

COM 1

COM 2

Link 1

9600, None, 8, 1, No flow control, buffer disabled, packet delimiter timer 2ms

9600, None, 8, 1, No flow control, buffer disabled, packet delimiter timer 2ms

Type: TCP Server, Listen port 4660 Filter=0.0.0.0

Link 2

SysName of SNMP

Syslocation of SNMP

SysContact of SNMP

Type: TCP Server, Listen port 4661 Filter=0.0.0.0

Name

Location

Contact

NOTE: Atop provides a reset button to restore system settings including IP address, gateway IP address and subnet mask etc. to the defaults. Press and hold the reset button for 5 seconds till the server reboots.

2.2 Assigning a new IP Address by ARP command

The following example uses ARP to assign a static IP address of GW21W using its MAC address.

GW21W MAC address is printed on the label of the rear panel.



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2.3 Auto IP

A DHCP server automatically assigns the IP address and network settings. GW21W supports DHCP. It will supply for the unit with an IP address gateway address, and subnet mask. You may use Monitor.exe software to search network information automatically by putting a check on Auto IP on Dialog window.

2.4 TCP/IP Port Number

Port number 4660 and 4661 are defaults of GW21W and are associated with serial ports COM1 and

COM2 respectively. After your application program connects to the TCP port 4660 (or 4661) of GW21W, data being sent to this TCP connection from your application program are transparent to the COM1 (or

COM2) of GW21W. Vice versa is also true.



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GW21W

3. Software Configuration

3.1 Configuration set by monitor.exe utility

Use monitor.exe that comes with the product CD or diskette to configure the network parameters of

GW21W. As you can see from the following picture, you can change IP address, gateway IP address, subnet mask, user ID and password of GW21W from the utility. For more details of the utility please refer to Appendix-D Configuration Utility.

3.2 Configuration set by Telnet

You can use Telnet utility to change configuration settings of GW21W. To do so, please do the following.

Log in to the system

1. Telnet to GW21W using command “Telnet IP_address”.

For example Telnet 10.0.50.100

2. After Telnet to GW21W, system prompts for a password, the default password is null.

Note: You can press the reset button of GW21W to reset the password to the default value.

3. After verifying the password, the following terminal screen appears.



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GW21W

Notes:

1. If GW21W does not receive any command within 1 minute, Telnet will be terminated automatically.

2. The changes of networking parameters will take effect only when you exit and restart GW21W.

3. Select “1” from “Input choice and enter (0~6):” to enter overview page as following:

This page gives you the general information of GW21W including IP and MAC address, SNMP information, kernel and AP version, and connection status of the device.

Networking

Select “2” from “Input choice and enter (0~6):” to enter Networking page as following:



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GW21W

This page allows you to change network settings of the device including IP address, subnet mask, gateway IP address and SNMP information of GW21W. Please notice that any setting change made on this page will not take effect until you restart the device.

Change the password

1. Select “3” from “Input choice and enter (0~6):” the following screen appears.

2. If you want to change the password, please type the old password in the “Please input old password” field, type the new password in the “Please input new password” and the “Please verify new password” fields.

Note: You can press the reset key of product to reset password to the default value.



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GW21W

COM1 Setup

Select “4” from “Input choice and enter (0~6):” the following screen appears

The page gives you the opportunity to configure parameters of COM1 setting which include COM1 working mode, port parameters, enabling or disabling serial buffer’s data and setting packet delimiter.

LINK1 Setup

Type 1 from “Input choice and enter (1~4):” of COM1, the following screen appears. Configure GW21W as

TCP server and the local port is 4660. IP filter is disabled by default, if IP filter is enabled, only source IP

10.0.0.154 can connect to GW21W.



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GW21W

Note: IP filtering function is disabled if setting FILTER_IP to “0.0.0.0”.



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GW21W

Configure GW21W as TCP client, the destination IP is 10.0.29.254, destination port is 666 for example.

Configure GW21W as UDP client, the local port is 4660, the destination IP is 10.0.29.254, destination port is 666 for example.



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COM port setting

Type 2 from “Input choice and enter (1~4):” of COM1, the following screen appears, you can then give the

COM port alias name, set the baud rate and parity, determine number of data bit and stop bit, and decide if you want to use flow control and the type of flow control you want to use.



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GW21W

Enabling serial data buffer

Type 3 from “Input choice and enter (1~4):” of COM1, by default COM port serial data buffer is enabled meaning that when TCP/IP Ethernet connection is broken, serial data collected from serial device will be kept in GW21W, once TCP/IP connection is resumed, the serial data will be sent through Ethernet connection, you can disable it if you wish.



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GW21W

Setting packet delimiter

Packet delimiter is a way of controlling packets within serial communication. It can prevent packets from being cut thus keep the packets complete. GW21W provides two ways of parameter setting as inter character timer and terminator. By default packet delimiter timer is 0 ms, you can change timer shown in the following figure:



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GW21W

You can also choose character pattern as the packet delimiter indicated in the following figure:

COM2 Setup

Select “5” from “Input choice and enter (0~6):”, please refer “COM1 Setup” for the setup explanation.

Accessing Wireless LAN setting

Select “6” from “Input choice and enter (0~6):” the following screen appears.



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GW21W

The above page gives you the general information about GW21W wireless configurations including the access point it connects to, the current channel and transmitting rate it communicates with the other wireless devices, topology it uses, and what the ESSID (extended service set identifier) and WEP

(wireless encryption protocol) are if you use them.

Wireless LAN Tran

Transmission Rate

You can set GW21W transmission rate as 1 Mbps, 2Mbps, 5.5Mbps, 11Mbps, or full auto based on 802.11 standard shown in the following figure:



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GW21W

Wireless LAN Ad-hoc channel

You have to select the same channel for two wireless devices to talk to each other as indicated in the following figure:



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GW21W

Wireless LAN ESSID

ESSID (extended service set identification) is used to identify all of the computers in the wireless LAN system, it is different from BSSID (basic service set identification) which contains a single access point

(AP) and several other nodes. The following diagram illustrates this concept:

By default, GW21W’s ESSID is NULL meaning that it can connect to any access point it detects regardless of SSID of the access point. However if there are two access points within the coverage of

GW21W, it will not connect to either of them, in this case you have to specifically input the ESSID of one of the access points for connection. From telnet you can input ESSID as indicated in the following figure:



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GW21W

Wireless Encryption Protocol or Wired Equivalent Protocol ( WEP ) Setting

For security reason, GW21W can set up to use WEP key of 40 bits or 128 bits to securely communicate in the wireless network. Telnet WEP key set up screen is as following:



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GW21W

3.3 Configuration set by hyper terminal console utility

1. Use a PC to connect to GW21W’s COM1 with RS-232 cross over cable.

(Please make sure COM1 is RS-232 type)

2. Open a hyper terminal program from your computer Start menu -> Programs -> Accessories ->

Communication -> hyper terminal, set COM1 parameters as follows.

- Baud rate: 9600bps

- Data bit: 8 bits

- Parity: None

- Stop bit: 1bit

- Flow control: None

3. Power on GW21W

4. Wait the device finishing the initialize (Listen to the beeper sound).

5. Send the character ‘Z’ or ‘z’ three times within two seconds.

6. Once hyper terminal is connected, type in username and password then the following hyper terminal window appears.

7. The following configuration operations are totally the same as those configure by Telnet.

8. After finishing console settings, restart GW21W.



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3.4 Configuration set by web browser

It is also possible to modify various settings through the web server interface. To do so, please follow the steps below.

Log in to the system

1. From web browser, type in the IP address of GW21W in the URL.

Example: http://10.0.50.100

2. The following authentication screen appears. Please type in user name and password then click on

“OK”. The user name is admin and password is null by default.

3. The following overview page appears.

Change the password

1. Click on the “Security” link and the following screen appears.



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GW21W

2. Please input the old password in the “Old Password” field, input the new password in the “New

Password” and the “Verified Password” fields. Then click on “Save Configuration” to update the password.

Note: You can press the reset key of product to reset password to the default value.

Network setup

Click on the “Networking” link and the following screen appears. Fill in IP information under TCP/IP field.

Enable SNMP by checking “Enable”, fill in network identification information under SNMP field and click on the “Save Configuration” button to save the changes, please notice that the setting will not become effective until you restart GW21W.

COM1 Setup

Click on the “COM1” link and the following screen appears. Fill in COM1 parameter information under

COM1 field then click on “Save Configuration” button to save the changes.



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LINK1 Setup

1. Click on the “COM1” link and the following screen appears, you can configure GW21W as transparent mode by default. Configure GW21W as TCP server and the local port is 4660, IP filter is disabled by default, if IP filter is enabled, only source IP 10.0.29.11 can connect to GW21W.



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GW21W

Configure GW21W as TCP client, the destination IP is 10.0.29.11, destination port is 4660.

Configure GW21W as UDP mode. Local port is 666, destination IP is 10.0.29.11 and destination port is

4660.



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2. Click on “Save Configuration” to save the changes.

3. If the update is successful, the following screen appears.



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4 Virtual COM Mode

Virtual COM driver mode for windows converts COM data to LAN data to control the RS-232C port on a

GW21W via the LAN. By creating Virtual COM ports on the PC, Atop Virtual COM redirects the communications from the Virtual COM ports to an IP address and port number on a GW21W that connects the serial line device to the network. The following figure is Atop Virtual COM connection diagram.

4.1 Setup of a Virtual COM driver

Pre-installation requirements

Please check the operation system on your PC complied with the following requirements:

• Processor: Intel-compatible, Pentium class

• Operation system: Windows Server 2003, Windows XP, Windows 2000, Windows NT 4.0

SP5 or later, Windows Me, Windows 98, Windows 95, Microsoft NT/2000 Terminal Server,

Citrix MetaFrame

• Windows Installer 2.0

• Network: Microsoft TCP/IP networking software

Applying to the serial server

Cautions on Use

Atop Virtual COM supports firmware AP v3.4 and above of ABLELink Serial-Ethernet Servers.



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Limitation

Atop Virtual COM driver provides user to select up to 256 COM ports as Virtual COM ports in a monitoring PC. User can select them from a list of COM ports, which is from COM1 up to COM256.

Installation

Make sure you have turned off all anti-virus software before beginning the installation. Run

AtopVcom.exe program included in the CD to install Atop Virtual COM for your operating system.

In the end of the installation, please select one or two COM ports to become the Virtual COM ports.

Uninstalling

1. From Windows Start menu select Setting, Control Panel, Add/Remove Programs.

2. Select .

Programs, Serial IP for ATOP, Uninstall Serial IP for ATOP to remove the program.

4.2 Virtual COM communication

Enable virtual COM on GW21W

From web browser access to GW21W by typing its IP address, click on COM1 or COM2 link to access

COM1 or COM2 page, on the top half of the page click on “TCP Server” and enable Virtual COM by putting a check in front of the “Enable” button, then type in the local port number in the “Local Port” field as indicated in the following figure: or you can enable Virtual COM through Telnet by setting COM1 or COM2 as TCP server, and type in the local port number for COM1 or COM2, then enable Virtual COM as shown in the following figure:



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GW21W

4.2.1Run Serial/IP for ATOP program on monitoring PC

In the Window Start Menu, select the Serial/IP for ATOP program group and select Serial/IP for ATOP

Configuration. The configuration window is shown as following:



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GW21W

At right is a sample Virtual COM Control Panel window. At the left is the list of the COM ports that you have selected (in the Select Ports window) for use by the Virtual COM Redirector. If you wish to change which ports appear in this list, use the Select Ports button.

Each COM port has its own settings. When you click on a COM port, the Control Panel display changes to reflect the settings for that COM port.

Note: When you change settings for a COM port, the changes are effective immediately. There is no separate confirmation dialog to confirm or cancel your changes.

Configuring Virtual COM Ports

You configure each Serial/IP COM port as follows:

1. Select a COM port in the list.

Port Number, enter the TCP port number that the serial server uses to provide its serial ports to the network.

Server Credentials, the default is No Login Required. If your serial server does require a login by the Virtual COM Redirector, the Virtual COM Redirector needs to provide a username and/or password every time an application tries to use the serial server. the window. This important step verifies that the Virtual COM Redirector can communicate with the serial server using the settings you have provided. If the Log display does not show errors, click the Use Settings button in the wizard, which makes the recommended settings effective and



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GW21W returns you to the Control Panel to continue with the following steps.

6. For Connection Protocol, the setting must match the TCP/IP protocol that the serial server supports. The Configuration Wizard is usually able to determine the correct setting.

7. For COM Port Options, the settings must match the COM port behavior expected by the PC application that will use this COM port. The Configuration Wizard will recommend a combination of settings.



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5. SNMP Setup

5.1 SNMP Network Management Platform

Atop GW21W is an SNMP device that allows many popular SNMP network management platforms such as HP OpenView and SunNet Manager to conduct monitoring on the device.

Depending on the network management tools you are using, device (GW21W) information can be collected from running the management tools including IP address, DNS name, system descriptions and

NIC information etc.

5.2 Using NetworkView As An Example

The NetworkView is a compact network management tool from NetworkView Software, Inc.

( www.networkview.com

). It discovers all TCP/IP nodes in a network using DNS, SNMP and ports information and documents with printed maps and reports for future use. You may visit their web sites and get a free download.

To use NetworkView, you will need to download and install the tool on your PC (Windows NT and

Windows 9x only). Please refer to the installation instructions that come with the tool.

1. After you have done the NetworkView installation, start NetworkView.

2. Click on the button to open a new file. The following screen appears, in the Addresses field, type in the IP address range to search.



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3. Click on “OK” and the following dialog box appears. It displays the searching progress.

4. When the search is completed, NetworkView will display the devices found in the main window, as shown in the following diagram.

5. Double-click on the device icon to display information about the device, including IP Address,

Company, SysLocation (Max 15 characters), SysName (Max 9 characters) and types etc.

Note:

1. The NetworkView tool is limited to information extracting and viewing only.

2. To modify the configurations please use the web server, Telnet or monitor.exe configuration utilities.



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6. Start Writing Your Own Applications

Before you start writing your host applications or programs to interact with GW21W, please make sure you have done the following.

6.1 Preparing The System

1. Properly connect GW21W hardware including power, Ethernet and RS-232/RS-485 cables.

2. Properly configure the parameters of GW21W including connection type, IP address, gateway IP address, and network mask accordingly (see chapter 2 Hardware Installation section).

3. Configure GW21W as TCP Server using default TCP port number 4660.

4. The host (PC) application program must be configured as a TCP client and connects to GW21W with designated TCP port number 4660 for COM1.

5. Make sure GW21W is running by checking the running status through monitor.exe configuration utility.

6.2 Running The Sample Program

Sample programs written in VB and VC++ included in package are provided for your reference, source codes are also included. Test program can be found in the product CD or diskette under the directory of

\sample\vb_ap\ and \sample\vc_ap respectively.

There are two test programs, TCPTEST written in Visual Basic and TCPTEST2 written in Visual C++.

6.2.1TCPTEST in Visual Basic

This sample program is written in Visual Basic 5.0 with Winsock Controls. It shows you how to send and receive data between host (PC) and GW21W via Ethernet in two socket ports.

Run Visual Basic and open sample program tcptest.vbp, after the program is started successfully, you can start testing functions. For more information, please press Help in the program to get detail explanation.

Note: Please be sure the Microsoft visual studio family software is installed on the computer. Otherwise the sample program will not run.



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GW21W

1

3

2

4

Status

Status

6.2.2 TCPTEST2 in Visual C

To start the program, please type in the following command in the command line prompt:

TCPTEST2 IP_Address Port_Number

The command tcptest2 10.0.50.100 4660 brings you to connect to a TCP server of IP address

10.0.50.100 and port number 4660, the received data is displayed on the screen and the data typed in is sent to the TCP server of the designated port number. You can also send binary data in hex format with a leading character “\”. For example, “\00” and “\FF” represent ASCII code 0 and 255 respectively.

You can also use modem to connect to the serial server. Command "AT\Od" sends standard AT command to the modem which in return responds with "OK\0D\0A" message to the host application.

Always use '=' then Enter key to exit the program.



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7. Diagnostics

There are several ways you can check on the status and availability of GW21W.

7.1 Use Standard TCP/IP Utility ping Command

From Windows Start menu, select Run and type in “ping <TCP Server IP address>”.

If the connection is established, the Reply messages are displayed, otherwise it will indicate Request timed out.

7.2 Use monitor.exe Configuration Utility Program

Use monitor.exe configuration program that comes with the product CD or diskette to check on the status of GW21W. The status can be read from “AP version” column of the tool.

Status Descriptions

S

C

U

A

B

The system is configured as a TCP Server and not yet connected.

The system is configured as a TCP Client and not yet connected.

The system is configured as an UDP.

The TCP Server and is connected.

The TCP Client and is connected.



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For example, ‘s’ means that COM1 is server mode and is not connected.

7.3 Use TCPTEST.EXE or TCPTEST2.EXE Sample Program

Use sample programs TCPTEST.EXE and TCPTEST2.EXE that comes with the product CD or diskette to check on the status of GW21W. Please refer to chapter 6.2 to run the sample programs.



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Appendix A: GW21W Serial-Ethernet Server Specifications

A.1. Hardware Specifications

CPU

Flash Memory

SRAM

EEPROM

Host Communication

Reset

Watch Dog Timer

Serial Port

Communication

Specifications

16-bit Embedded CPU

40MHz

512K Bytes

256K Bytes

512 Bytes

IEEE802.11b 11 Mbps Wireless LAN

TCP/IP, UDP, SNMP, HTTP, Telnet, ARP, BOOTP, ICMP, DHCP

Built-in reset key for restoring default parameters

1 second hardware auto reset

Power failure threshold: 4.75V

Two serial ports RS-232 or RS-485 is selectable

RS-232: EIA-RS-232C standard, Full Duplex, 9 pin Male D-type

RS-485: 2/4 wires, Half/Full duplex, 9 pins Male D-type.

Parameters

1) Baud-rate: 1200 bps ~115200 bps

2) Parity: None, Even, Odd, Mark, Space

3) Data bits: 7,8

4) Stop bits: 1,2

5) Packet Delimiter: by inter-character timeout, by characters delimiter

6) Flow Control: None, Hardware handshake, software Xon/Xoff

LED indication

Power Requirement

Temperature

Humidity

Housing

RUN x 1

LAN x 1

COM port1

COM port2

+12Vdc @ 350mA

Operation: 0℃ to 50℃

Storage: -20℃ to 70℃

20%~90% non-condensing

140mm) x 82(mm) x 35(mm)



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GW21W

A.2. Software Specifications

Item Specifications

Protocol TCP, UDP, ARP, ICMP, SNMP, HTTP, Telnet, BOOTP, ICMP, DHCP

Configuration information for both TCP/IP and serial ports is kept in the

EEPROM.

Configuration utilities of Windows95/98/2000/NT/XP/2003 are provided for configuring settings.

Internal Buffer Size

Telnet, RS-232 console, web server configuration.

TCP receiving buffer size = 8K bytes

TCP transmitting buffer size = 16K bytes

RS-232/RS-485 receiving buffer size = 4K bytes

RS-232/RS-485 transmitting buffer size = 4K bytes

A.3 Connector Pin Assignments

A.3.1 COM Port

9 pin D-type connector

COM ports may be either the RS-232 full duplex or the RS-485 2/4 wires.

Pin#

RS-232

Full Duplex

RS-485

2 wire, Half Duplex

1 DCD N/A

2 RXD N/A

DATA-

5 SG (Signal Ground)

6 DSR

7 RTS

SG (Signal Ground)

N/A

N/A

DATA+

RS-485

4 wire, Full Duplex

N/A

N/A

RXD-

TXD-

SG (Signal Ground)

N/A

N/A

RXD+ devices)



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GW21W

A.4 Buzzer/LED Message

Buzzer

“ ^ “ : Beep twice

“ = “ : Beep off

Message

^===^===^===^===^===^===^..

(1sec)

^^^^^^^^^^^^^^^^^^^^^^^..

^==^========^^

(5sec)

^==^========^^^

(5sec)

LAN LED

Message

LED Off

LED blinking

COM1 LED

Message

LED off

LED on blinking state

COM2 LED

Message

LED off

LED on blinking state

RUN LED

Message

LED on

LED blinking (rate: 0.5Sec)

Description

Watchdog problem, return service is required

Memory problem, return service is required

Startup OK but AP firmware is disabled

Startup OK and AP firmware is enabled

Description

No data is transmitting on Ethernet

Data is transmitting on Ethernet

Description

No data is transmitting on COM1

Data is transmitting on COM1

Description

No data is transmitting on COM2

Data is transmitting on COM2

Description

1.Jumper JP16 is opened to disable AP firmware in the flash memory.

2.Jumper JP16 is shorted, but no AP firmware in the flash memory.

AP firmware is running



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GW21W

Appendix B. Upgrade System Software

After the new version of firmware is released, customers can download it from Atop’s web site at www.atop.com.tw

. You can contact Atop’s sales person to request the newest product CD as well.

You may decide to or not to upgrade the system’s firmware. To do so, please follow these instructions listed below.

B.1 Upgrade Procedures

When you get a new software version, please follow the sequences below to upgrade your GW21W.

Connect a PC (Windows 95/98/NT/2000) and GW21W you wish to upgrade the firmware in the same

TCP/IP network. Use command ping or monitor.exe utility program to verify their availability.

Prepare the download tool. Execute the utility program download.bat and press any key to edit its configuration file dapdl.cfg. dapdl.cfg file can be found in the product CD.

Edit the "dapdl.cfg" file to fit your system need, the content of the file looks like as the following. Be sure to save your modifications after the change is made.

Remote_IP 10.0.50.100

Load U21wap.hex

The first line identifies the IP address of GW21W, the second line identifies the firmware (.Hex file) name to be downloaded.

Input the user name and password credential, the new firmware will be downloaded.



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GW21W

GW21W will automatically restart each time the firmware is successfully downloaded.

B.2 Critical Issues of Upgrading

1. You can always abort the upgrading process by pressing the <Esc> key from host PC during the upgrading process. The serial server will restart automatically and the system remains intact.

2. If GW21W does not receive any upgrade data within 30 seconds, the serial server will restart automatically and the system remains intact.

3. After the upgrading process finishes, the serial server will program the flash memory and buzzer beeps 6 times then restarts. Normally, it takes around 10 seconds to complete the programming process. If an error occurs during the programming process,GW21W will clear the corresponding memory and the system remains intact of what it was.

B.3 Error Messages

Firmware upgrade may not be successful if errors occur during the process.

Error Cause Message

Illegal Hex file format Hex File Text Error

Hex File Check-Sum Error

Hex File Format Error

Hex File End of Record Error

GW21W handshaking problem GW21W ACK Start Address Error

GW21W ACK Length Error

Comments



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GW21W

GW21W Response Command Error

Configuration file Remote IP not found

Open configuration file failure



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GW21W

Appendix C. Hardware Configuration

C.1 Disable System Firmware

The AP (application program) firmware of GW21W can be disabled. This function is used in the situation that you downloaded a wrong version of firmware that caused the system crashed.

To disable the current version of firmware and prevent it from executing, please do the followings:

1. Turn off the power, open the case of GW21W.

2. Remove jumper JP16 from the main board to disable AP firmware.

3. Power on GW21W.

4. Download the correct AP firmware to GW21W.

5. Put the jumper JP16 back on to enable AP firmware.

6. Close the case and continue your operations.

Please refer to Figure C.1 Component Side of GW21W main board for jumper JP16 location.

C.2 Choose Type of COM Ports

GW21W (main board version 1.4) COM ports can be setup either RS-232 or RS-485 by hardware jumper.

1. Press two holes at lateral side to open the case of GW21W.

2. Set the Jumpers to RS-232 or RS-485.

Short all of the upper two pins of JP4~9 to set COM1 as RS-485, short all lower two pins of

JP4~9 to set COM1 as RS-232.

Short all the left two pins of JP10~15 to set COM2 as RS-485, short all right two pins of JP10~15 to set COM2 as RS-232.

3. Close the case and continue your operation. To find the physical locations of these jumpers, please refer to below component side of GW21W main board v1.4.

Note: Monitor.exe utility can be used to demonstrate COM ports properties.



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GW21W

Appendix D Configuration Utility

The configuration utility monitor.exe comes with the product CD or diskette is the main utility program to demonstrate and configure GW21W’s settings.

D.1 Run the utility

Start the program under Windows 95/98/NT/2000 environment and the following window appears.

D.2 Detect Operational Devices

You may do the following steps to detect devices currently available on the network.

2. Select an item from the Broadcast IP list.

3. Specify a number in the Wishes box.

4. Click on the Invite button. This will display all the devices information you have requested.

D.3 Configure Devices

You may use monitor.exe configuration utility to configure the settings of devices on the network. To do so, please follow the steps below.

1. Repeat the steps in the section of D.2 to bring up the devices information.

2. Select the device you want to configure from the IP Address column, click on the Config button, a configuration window will popup as shown in Figure D2:



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GW21W

3. After you click the “Configure Now” button, the target device will return an ACK message indicating the modification is successful as shown in the following:

Please note monitor.exe version 2.4 and above requires gw21le.dll library to function properly.

The following table lists the functional descriptions for all the fields.

Field Name

Broadcast IP Except for the default IP 255.255.255.255, other items (IPs) are read from the file “seg.cfg”. This field specifies a detecting IP range. It may be a designated

IP or a broadcast IP.

Field Descriptions



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GW21W

Wishes

Reply

Retry

Locate

Reset

Config

Exit

IP Address

MAC Address

Gateway

Subnet Mask

OS

AP Version

Model

Specifies minimum number of the devices you wish to get reply from after sending an Invite request. If there is not as many as devices responding to your invitation, the system repeatedly sends invitation until your request is fulfilled.

Indicates the actual number of devices this utility program detected.

Specify the number of times that an Invite request is re-sent.

Locate the specified device.

Reset the selected device.

Configure the selected device.

Exit this utility.

Indicate the IP address of the device that replied to your request.

Leading tag “!” stands for IP address collision, possibly caused by duplicated

IP addresses on the network.

Leading tag “?” stands for Mac address collision, possibly caused by duplicated Mac addresses on the network.

Indicates the MAC address of responding device.

Indicates the IP address of the gateway.

Indicates the TCP/IP network mask.

Indicates the OS version of the responding device.

Indicates the AP version of the responding device.

Indicates the model number of the responding device. This field is only available for monitor.exe version 2.0 and above.



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Atop ABLELink GW21W User manual

Atop ABLELink

®

Serial-Ethernet

Server GW21W

User Manual

Important Announcement

Atop Technologies, Inc.

Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expenses.

A shielded-type power cord is required in order to meet FCC emission limits and also to prevent interference to the nearby radio and television reception. It is essential that only the supplied power cord can be used.

Use only shielded cables to connect other devices to this equipment by RS-232 / RS-485 ports.

Be cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment.

Content

1. Introduction

2. Hardware Installation

3. Software Configuration

4 Virtual COM Mode

5. SNMP Setup

6. Start Writing Your Own Applications

7. Diagnostics

Appendix A: GW21W Serial-Ethernet Server Specifications

Appendix B. Upgrade System Software

Appendix C. Hardware Configuration

Appendix D Configuration Utility

Related manuals

Table of contents

Atop ABLELink GW21W User manual

Atop ABLELink

®

Serial-Ethernet

Server GW21W

User Manual

Important Announcement

Atop Technologies, Inc.

Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expenses.

A shielded-type power cord is required in order to meet FCC emission limits and also to prevent interference to the nearby radio and television reception. It is essential that only the supplied power cord can be used.

Use only shielded cables to connect other devices to this equipment by RS-232 / RS-485 ports.

Be cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment.

Content

1. Introduction

2. Hardware Installation

3. Software Configuration

4 Virtual COM Mode

5. SNMP Setup

6. Start Writing Your Own Applications

7. Diagnostics

Appendix A: GW21W Serial-Ethernet Server Specifications

Appendix B. Upgrade System Software

Appendix C. Hardware Configuration

Appendix D Configuration Utility

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ABLELink GW21C-MAXI

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ABLELink GW21C-MAXI

Brainchild

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EW5300

Table of contents