Atop ABLELink GW21C-MAXI User Manual

Atop ABLELink® Ethernet-Serial

Server GW21C-MAXI

User Manual

Version 1.1

Updated on 2004/03/5

Tel: 886-3-5508137

Fax: 886-3-5508131

www.atop.com.tw

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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

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

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FCC WARNING

Class A for Ethernet-Serial Server (Model GW21C-MAXI)

This equipment has been tested and found to comply with the limits for a Class A 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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Contents

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

1.1 P

ACKAGING

........................................................................................................................... 5

1. 2 A

PPLICATION CONNECTIVITY

................................................................................................. 6

2. NOMENCLATURE AND SETTINGS ................................................................................ 8

2.1 N

OMENCLATURE OF

GW21C-MAXI C

OMPONENTS

................................................................ 8

2.2 MODE S

WITCH

..................................................................................................................... 8

3. HARDWARE INSTALLATION............................................................................................ 9

3.1 C

ONFIGURATION

.................................................................................................................... 9

3.2 A

SSIGNING A NEW

IP A

DDRESS BY

ARP

COMMAND

................................................................ 9

3.3 TCP/IP P

ORT NUMBER

....................................................................................................... 10

4. SOFTWARE CONFIGURATION...................................................................................... 11

4.1 C

ONFIGURATION SET BY MONITOR.EXE UTILITY

..................................................................... 11

4.2 C

ONFIGURATION SET BY TELNET UTILITY

.............................................................................. 11

4.3 C

ONFIGURATION SET BY HYPER TERMINAL CONSOLE UTILITY

................................................ 19

4.4 C

ONFIGURATION SET BY WEB BROWSER

............................................................................... 20

4.5 V

IRTUAL

COM M

ODE

.......................................................................................................... 26

4.5.1 Setup of a virtual COM driver ...................................................................................................26

4.5.2 Virtual COM communication .....................................................................................................27

5. SNMP SETUP......................................................................................................................31

5.1 SNMP N

ETWORK MANAGEMENT PLATFORM

........................................................................ 31

5.2 U

SING NETWORKVIEW AS AN EXAMPLE

............................................................................... 31

6. START WRITING YOUR OWN APPLICATIONS .........................................................33

6.1 P

REPARING THE SYSTEM

.................................................................................................... 33

6.2 R

UNNING THE SAMPLE PROGRAM

........................................................................................ 33

TCPTEST in Visual Basic ..................................................................................................................33

TCPTEST2 in Visual C ......................................................................................................................34

7. DIAGNOSTICS....................................................................................................................36

7.1 U

SE STANDARD

TCP/IP U

TILITY PING COMMAND

................................................................. 36

7.2 U

SE MONITOR.EXE CONFIGURATION UTILITY PROGRAM

........................................................ 36

7.3 U

SE

TCPTEST.EXE

OR

TCPTEST2.EXE S

AMPLE PROGRAM

............................................ 37

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APPENDIX A: GW21C-MAXI ETHERNET-SERIAL SERVER SPECIFICATIONS ...38

A.1. H

ARDWARE SPECIFICATIONS

.............................................................................................. 38

A.2. S

OFTWARE SPECIFICATIONS

.............................................................................................. 39

A.3 C

ONNECTOR PIN ASSIGNMENTS

.......................................................................................... 39

A.3.1 COM Port..................................................................................................................................39

A.3.2 Ethernet Port (RJ-45) ...............................................................................................................41

A.3.3 Power terminal block connector ...............................................................................................42

A.4 B

UZZER

/LED M

ESSAGE

...................................................................................................... 42

Buzzer ................................................................................................................................................42

LAN LED ............................................................................................................................................42

COM Port LED ...................................................................................................................................43

RUN LED ...........................................................................................................................................43

APPENDIX B. UPGRADE SYSTEM SOFTWARE........................................................... 44

B.1 U

PGRADE PROCEDURES

..................................................................................................... 44

B.2 C

RITICAL ISSUES OF UPGRADING

........................................................................................ 45

B.3 E

RROR MESSAGES

............................................................................................................. 45

APPENDIX C. HARDWARE CONFIGURATION..............................................................46

C.1 D

ISABLE SYSTEM FIRMWARE

.............................................................................................. 46

APPENDIX D CONFIGURATION UTILITY ........................................................................47

D.1 R

UN THE UTILITY

................................................................................................................. 47

D.2 D

ETECT OPERATIONAL DEVICES

......................................................................................... 47

D.3 C

ONFIGURE DEVICES

.......................................................................................................... 47

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1. Introduction

The Atop GW21C-MAXI Ethernet-Serial Server is a gateway between Ethernet (TCP/IP) and RS-232/RS-485 communications. The information transmitted by GW21C-MAXI 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 GW21C-MAXI Ethernet-Serial Server is used for field devices to direct connect to Ethernet network. Terminal Server (main control program run in GW21C-MAXI) 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 GW21C-MAXI, 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.

GW21C-MAXI from Atop Technologies Inc. offers one RS-232/ RS-485 port, one RJ45 Ethernet and Watch-Dog Timer etc.

1.1 Packaging

Atop Ethernet-Serial Server x 1

Atop Ethernet-Serial Server quick start guide x 1

Mini DIN to RS-232 DB-9 Cable x 1

Product CD containing configuration utility and sample programs x 1

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1. 2 Application Connectivity

TCP Server mode

Host

RS-232/RS-485

GW21C-MAX

I

PL

C

TCP Client mode

Remote Control Host

RS-232 /RS-485

Card Reade

r

Card Reade

r

Card Reade

r

GW21C-MAXI

GW21C-MAX

I

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UDP mode

GW21C-MAXI

RS-232/RS-485

Displa

y

Tunneling mode

GW21C-MAXI GW21C-MAXI

RS-232/RS-485 RS-232/RS-485

PLC

Touch Screen

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2. Nomenclature and Settings

2.1 Nomenclature of GW21C-MAXI Components

Figure 2.1 shows the names of GW21C-MAXI components. In the figure, the indicated switch settings represent factory settings.

Mode Switch Table

Led Indicator

Mode Switch

RS-232C Terminal

Block Connector

Power Supply Input

Connector

RS232C Mini-Din

Pin Assignment

UTP Connector

Mini DIN Connector

Figure 2.1. Nomenclature of GW21C-MAXI components.

2.2 MODE Switch

This sets or initializes the operating mode for the GW21C-MAXI.

The factory default setting is that Switch 1 (SW1) and Switch 2 (SW2) are set to OFF. You can use the Mode switch to change the operating mode from the factory default settings to your desired mode.

GW21C-MAXI can be setup either RS-232, RS-485, RS-422 or Console configuration mode by MODE Switch.

SW1 SW2 Mode

OFF RS-232 OFF

ON CONSOLE

OFF RS-485 ON

ON RS-422

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3. Hardware Installation

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

 Connect GW21C-MAXI to Ethernet network via hub/switch or direct connect to host computer through

cross over cable.

 Connect a serial device to a serial port of GW21C-MAXI, make sure the right connection of either

RS-232 or RS-485.

 Plug in DC9-30V, the buzzer will beep and the RUN LED will blink if GW21C-MAXI 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 GW21C-MAXI. If it

starts up successfully, you are able to find the IP and MAC addresses of GW21C-MAXI. You can change the network parameters of GW21C-MAXI to join your LAN by changing its IP address, gateway IP address and subnet mask.

3.1 Configuration

Atop GW21C-MAXI Ethernet-Serial 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 9600,None, 8, 1, No flow control, buffer disabled, packet delimiter timer 2ms

Link 1 Type: TCP Server, Listen port 4660, Filter=0.0.0.0, Virtual COM disabled

SysName of SNMP name

SysLocation of SNMP location

SysContact of SNMP 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.

3.2 Assigning a new IP Address by ARP command

ARP –s is used to assign a static IP address of GW21C-MAXI and add this static entries to the ARP cache of the computer, when TCP/IP packet with destination port number 1 is sent to GW21C-MAXI, it causes the device to check its MAC address with IP address, once GW21C-MAXI finds those two unmatched, it will reboot and change to the new IP address which was set by ARP –s command. The following example uses ARP to assign a static IP address of GW21C-MAXI using its MAC address printed on the label of the rear panel, then use Telnet to send the TCP/IP packet with destination port number 1 to GW21C-MAXI, after GW21C-MAXI reboots it will change its IP address to the new one.

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Notes:

1. Arp command can only be used to set a static IP address of GW21C-MAXI using system default user name admin and default password null.

2. Only TCP/IP packet with destination port number 1 will lead GW21C-MAXI to reboot and change the IP address.

3.3 TCP/IP Port Number

Port number 4660 is default of GW21C-MAXI and is associated with serial port COM1 respectively. After your application program connects to the TCP port 4660 of GW21C-MAXI, data being sent to this TCP connection from your application program are transparent to the COM1 of GW21C-MAXI. Vice versa is also true.

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4. Software Configuration

4.1 Configuration set by monitor.exe utility

Use monitor.exe that comes with the product CD or diskette to configure the network parameters of GW21C-MAXI. As you can see from the following picture, you can change IP address, gateway IP address, subnet mask, user ID and password of GW21C-MAXI from the utility. For more details of the utility please refer to Appendix-D Configuration Utility.

4.2 Configuration set by Telnet utility

You can use Telnet utility to change configuration settings of GW21C-MAXI. To do so, please do the following.

Log in to the system

Telnet to GW21C-MAXI using command “Telnet IP_address”.

For example Telnet 10.0.50.100

1. After telnet to GW21C-MAXI, system prompts for a password, the default password is null.

Note: You can press the reset button of GW21C-MAXI to reset the password to the default value.

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

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NOTE:

1. If GW21C-MAXI 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 GW21C-MAXI.

3. Select “1” from “Input choice and enter (0~4):” to enter overview page as following:

This page gives you the general information of GW2iC-MAXI including IP and MAC address, SNMP information, kernel and AP version, and connection status of the device.

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Networking

Select “2” from “Input choice and enter (0~4):” to enter Networking page as following:

This page allows you to change network settings of the device including IP address, subnet mask, gateway IP address and SNMP information of GW21C-MAXI. Please notice that any setting change made on this page won’t take effect until you restart the device.

Change the password

1. Select “3” from “Input choice and enter (0~4):” 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.

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

COM1 Setup

Select “4” from “Input choice and enter (0~4):” 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 GW21C-MAXI 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 GW21C-MAXI.

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

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Configure GW21C-MAXI as TCP client, the destination IP is 10.0.29.123, destination port is 666.

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Configure GW21C-MAXI as UDP client, the local port is 4660, the destination IP is 10.0.29.254, destination port is 666.

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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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 GW21C-MAXI, 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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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. GW21C-MAXI provides two ways of parameter setting as inter character timer and terminator. By default packet delimiter timer is 1 ms, you can change timer shown in the following figure:

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

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4.3 Configuration set by Hyper Terminal console utility

1. Power off GW21C-MAXI.

2. Set the MODE switch SW1 to ‘OFF’ and SW2 to ‘ON’.

3. Use a PC to connect to GW21C-MAXI’s console with RS-232 cross over cable.

4. Power on GW21C-MAXI.

5. Open a Hyper Terminal program from your computer Start menu -> Programs -> Accessories -> Communication -> Hyper Terminal, set COM2 parameters as follows.

- Baud rate: 9600 bps

- Data bit: 8 bits

- Parity: None

- Stop bit: 1bit

- Flow control: None

Note:

At present time baud rate is fixed at 9600 bps for console port communication, RS-232C parameters of your computer COM port and GW21C-MAXI must be the same.

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 by Telnet.

8. After finishing console settings, power off GW21C-MAXI, put SW1 and SW2 back to the previous setting.

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4.4 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 GW21C-MAXI 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.

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Change the password

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

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

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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 GW21C-MAXI.

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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 GW21C-MAXI as transparent mode by default. Configure GW21C-MAXI 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 GW21C-MAXI.

Configure GW21C-MAXI as TCP client, the destination IP is 10.0.29.11, destination port is 4660.

Configure GW21C-MAXI as UDP mode. Local port is 666, destination IP is 10.0.50.100 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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4.5 Virtual COM Mode

Virtual COM driver mode for windows converts COM data to LAN data to control the RS-232C port on a GW21C-MAXI 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 GW21C-MAXI that connects the serial line device to the network. The following figure is Atop Virtual COM connection diagram.

Physical COM1

Physical COM2

COM3

(Virtual COM Port)

COM4

(Virtual COM Port)

COM5

(Virtual COM Port)

COM6

(Virtual COM Port)

OS Driver Level

COM256

(Virtual COM Port)

PC

: :

HUB

TCP/IP Network

Serial Line

Serial Device 1

Serial Line

Serial Device 2

Serial Line

Serial Device 3

Serial Line

Serial Device 4

GW21C-MAXI

4.5.1 Setup of a virtual COM driver

Correspondence OS

Atop Virtual COM driver can be used on Windows XP, Windows 2000, Windows NT 4.0 SP5 or later, Windows Me or Windows 98, Microsoft NT/2000 Terminal Server.

Cautions on Use

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

Limitation

Atop Virtual COM driver provides user to select two 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.

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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 Serial IP for ATOP in the list of installed software.

3. Click the Add/Remove button to remove the program, or From Windows Start menu select Programs, Serial IP for ATOP, Uninstall Serial IP for ATOP to remove the program.

4.5.2 Virtual COM communication

4.5.2.1 Enable virtual COM on GW21C-MAXI

From web browser access to GW21C-MAXI by typing its IP address, click on COM1 link to access COM1 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 as TCP server, and type in the local port number for COM1, then enable Virtual COM as shown in the following figure:

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4.5.2.2 Run 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:

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.

2. For IP Address of Server, enter a numeric IP address for the serial server.

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

4. For 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.

5. Click the Configuration Wizard button and then click the Start button that appears in the wizard

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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 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 GW21C-MAXI 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 (GW21C-MAXI) 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 GW21C-MAXI, please make sure you have done the following.

6.1 Preparing The System

1. Properly connect GW21C-MAXI hardware including power, Ethernet and RS-232/RS-485 cables.

2. Properly configure the parameters of GW21C-MAXI including connection type, IP address, gateway IP address, and network mask accordingly (see chapter 3 Hardware Installation section).

3. Configure GW21C-MAXI 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 GW21C-MAXI with designated TCP port number 4660 for COM1.

5. Make sure GW21C-MAXI 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++.

TCPTEST 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 GW21C-MAXI 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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TCPTEST2 in Visual C

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

TCPTEST2 IP_Address Port_Number

1

2

3

4

Status

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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\O d" 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 GW21C-MAXI.

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 GW21C-MAXI. The status can be read from “AP version” column of the tool.

Status Descriptions

S

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

C

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

U

The system is configured as an UDP.

A

The TCP Server and is connected.

B

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 GW21C-MAXI. Please refer to chapter 6.2 to run the sample programs.

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Appendix A: GW21C-MAXI Ethernet-Serial Server Specifications

A.1. Hardware Specifications

Specifications

CPU

 16-bit Embedded CPU

 100MHz

Flash Memory

 512K Bytes

SDRAM

 512K Bytes

EEPROM

 512 Bytes

Host Communication

 IEEE802.3 base band

 TCP/IP, UDP, SNMP, HTTP, Telnet, ARP, BOOTP

Reset

 Built-in reset key to restore factory default settings

Watch Dog Timer

 1.34 second hardware auto reset

 Power failure threshold: 4.75V

Serial Port Communication

 One RS-232 or RS-485 selectable

 RS-232: EIA-RS-232C standard, Full Duplex, 8 pins Mini-DIN or 5 pins

terminal block

 RS-485: 2/4 wires, Half/Full duplex, 8 pins Mini-DIN or 5 pins terminal

 Parameters

1) Baud-rate: 1200 bps ~ 230400 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 deli

m

6) Flow Control: None, Hardware CTS/RTS, Software Xon/Xoff

LED indication

 RUN x 1 (Green)

 LAN x 1 (Green)

 COM port1 (Green)

Power Requirement

 +9~30Vdc, 2.8 Watt Max

Temperature

 Operation:

 Storage:

0℃ to 60℃

-20℃ to 85℃

Humidity

 20%~90% non-condensing

Housing

 90mm(L) x 45mm(W) x 63mm(H)

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A.2. Software Specifications

Item Specifications

Protocol

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

Configuration

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

EEPROM.

 Configuration utilities of Windows 95/98/NT are provided for configuring

settings.

Internal Buffer Size

 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

8 pin Mini DIN connector

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Pin assignments of Mini DIN connector is shown in the following table:

Pin#

RS-232

Full Duplex

RS-485

2 wire, Half Duplex

RS-485

4 wire, Full Duplex

1 DCD N/A N/A

2 RXD N/A

RxD/T+

3 TXD

TxD/R+

4 DTR N/A (reserved) N/A

5 SG (Signal Ground) SG (Signal Ground) SG (Signal Ground)

6 DSR N/A N/A

7 RTS

RTS/R-

8 CTS N/A

CTS/T-

9 N/A N/A (reserved for Atop devices) N/A

Atop provides Mini DIN connector to DB9 connector cable, the pin assignments of DB9 connector is shown in the following table:

Pin#

RS-232

Full Duplex

RS-485

2 wire, Half Duplex

RS-485

4 wire, Full Duplex

1 DCD N/A N/A

2 RXD N/A N/A

3 TXD

DATA-

RXD-

4 DTR N/A (reserved)

TXD-

5 SG (Signal Ground) SG (Signal Ground) SG (Signal Ground)

6 DSR N/A N/A

7 RTS N/A N/A

8 CTS

DATA+

RXD+

9 RI N/A (reserved for Atop devices)

TXD+

Note: RS485 2 or 4 pins assignments of DB9 connector are different from those of Mini DIN connector.

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Terminal Block Connector

RS485 only uses RTS/R- and TxD/R+ for data communication while RS232 or RS422 uses RTS/R-, TxD/R+, CTS/T- and RxD/T+ for communicating data.

A.3.2 Ethernet Port (RJ-45)

1. Category 5 UTP cable, 8 core wire.

2. RJ45 Connector.

3. RJ45 Pin Assignment

Pin Assignment 568A Definition 568B Definition

Pin1 Green-White Orange-White

Pin2 Green Orange

Pin3 Orange-White Green-White

Pin4 Blue Blue

Pin5 Blue-White Blue-White

Pin6 Orange Green

Pin7 Brown-White Brown-White

Pin8 Brown Brown

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You can choose either 568A or 568B definition. If you want to make a crossover cable, you should use 568A and 568B definition respectively in each terminal of a UTP cable.

A.3.3 Power terminal block connector

A.4 Buzzer/LED Message

Buzzer

“ ^ “: Beep twice

“ = “: Beep off

Message Description

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

(1sec)

Watchdog problem, return service is required

^^^^^^^^^^^^^^^^^^^^^^^... Memory problem, return service is required

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

(5sec)

Startup OK but AP firmware is disabled

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

(5sec)

Startup OK and AP firmware is enabled

Table 1. RUN LED Message

LAN LED

Message Description

LED Off

No data is transmitting on Ethernet

LED blinking

Data is transmitting on Ethernet

Table 2. LAN LED Message

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COM Port LED

Message Description

LED off

No data is transmitting on COM port

LED on blinking state

Data is transmitting on COM port

Table 3. COM Port LED Message

RUN LED

Message Description

LED on

Jumper JP1 pin1 and pin2 are short to disable AP firmware in the flash memory.

LED blinking (rate: 0.5Sec) AP firmware is running

Table 4. RUN LED Message

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Appendix B. Upgrade System Software

After the new version of firmware is released, customers can download it from Atop web site at

www.atop.com.tw

. You can contact Atop 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 GW21C-MAXI.

1. Connect a PC (Windows 95/98/NT/2000) and GW21C-MAXI you wish to upgrade the firmware in the same TCP/IP network. Use command ping or monitor.exe utility program to verify their availability.

2. 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.

3. 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 U21cmap.hex

The first line identifies the IP address of GW21C-MAXI, the second line identifies the firmware (.Hex file) name to be downloaded.

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

5. GW21C-MAXI will automatically restart each time the firmware is successfully downloaded.

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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. GW21C-MAXI will restart automatically and the system remains intact.

2. If GW21C-MAXI does not receive any upgrading data within 30 seconds, GW21C-MAXI will restart automatically and the system remains intact.

3. After the upgrading process finishes, GW21C-MAXI 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, GW21C-MAXI 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 Comments

Illegal Hex file format Hex File Text Error

Hex File Check-Sum Error Hex File Format Error Hex File End of Record Error

GW21C-MAXI handshaking problem

GW21C-MAXI ACK Start Address Error

GW21C-MAXI ACK Length Error GW21C-MAXI Response Command Error

Configuration file

Remote IP not found Open configuration file failure

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Appendix C. Hardware Configuration

C.1 Disable System Firmware

The AP (application program) firmware of GW21C-MAXI 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 the power off, open GW21C-MAXI case.

2. Short pin1 and pin2 of jumper JP1 on the right-top corner from the main board to disable AP firmware.

3. Power on GW21C-MAXI.

4. Download the correct AP firmware to GW21C-MAXI.

5. Remove the pin 1 and pin2 of jumper JP1 to enable AP firmware.

6. Close the case and continue your operations.

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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 GW21C-MAXI’s settings.

D.1 Run the utility

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

Figure D1. Main window of monitor.exe utility program

D.2 Detect Operational Devices

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

1. Start monitor.exe utility program.

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.

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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:

Figure D2. Configuration dialog box

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.

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

Field Name Field Descriptions

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.

Wishes

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.

Reply

Indicates the actual number of devices this utility program detected.

Retry

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

Locate

Locate the specified device.

Reset

Reset the selected device.

Config

Configure the selected device.

Exit

Exit this utility.

IP Address

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.

MAC Address

Indicates the MAC address of responding device.

Gateway

Indicates the IP address of the gateway.

Subnet Mask

Indicates the TCP/IP network mask.

OS

Indicates the OS version of the responding device.

AP Version

Indicates the AP version of the responding device.

Model

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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