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ICP DAS USA tGw-735 User Manual

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tGW-700 Series
GW-2200 Series
User Manual
Tiny Modbus/TCP to RTU/ASCII Gateway Ver. 2.6, Oct. 2020
WARRANTY
All products manufactured by ICP DAS are warranted
against defective materials for a period of one year
from the date of delivery to the original purchaser.
WARNING
ICP DAS assumes no liability for damages consequent
to the use of this product. ICP DAS reserves the right to
change this manual at any time without notice. The
information furnished by ICP DAS is believed to be
accurate and reliable. However, no responsibility is
assumed by ICP DAS for its use, nor for any
infringements of patents or other rights of third parties
resulting from its use.
COPYRIGHT
Copyright © 2020 by ICP DAS. All rights are reserved.
TRADEMARKS
Names are used for identification purposes only and
may be registered trademarks of their respective
companies.
CONTACT US
If you have any questions, please feel free to contact
us via email at:
service@icpdas.com
SUPPORT
This manual relates to the following modules:
tGW-712, tGW-722, tGW-732
tGW-715, tGW-725, tGW735
tGW-718, tGW-724, tGW-734
tGW-712i, tGW-722i, tGW-732i
tGW-715i, tGW-725i, tGW735i
tGW-718i, tGW-724i, tGW-734i
tGW-718i-D
tGW-715-T, tGW-715i-T,
tGW-718-T, tGW-718i-T,
GW-2212i, GW-2222i, GW-2232i
GW-2215i, GW-2225i, GW-2235i

Table of Contents

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ICP DAS USA tGw-735 Specifications

General IconGeneral
ModeltGw-735
CategoryControl Unit
ManufacturerICP DAS USA
Ethernet10/100 Base-TX
Serial Ports1
Operating Temperature-25 ~ +75 °C
Ethernet Ports1
Storage Temperature-30 ~ +80 °C
Power Input10 ~ 30 VDC
ProtocolsModbus TCP, Modbus RTU
Power SupplyDC 10~30V
Operating VoltageDC 10 ~ 30V
Humidity10 ~ 90% RH, non-condensing

Summary

Packing List

More Information

Documentation

Links to download manuals for tGW-700, tGW-700-T, and GW-2200 series.

Firmware

Provides links to download firmware updates for the gateway modules.

Software

Links to download necessary software utilities for the gateways.

1. Introduction

1.1 Features

Lists key capabilities and specifications of the gateway modules.

1.2 Applications

Outlines common use cases and industries for the gateway.

1.3 Ethernet Solutions

Explains the role and benefits of Ethernet in industrial communication.

1.4 Web Server Technology

Describes the web-based interface for device configuration and management.

2. Hardware Information

2.1 Specifications

Details technical specifications like CPU, Ethernet, PoE, COM ports, and environment.

2.2 Appearance

Illustrates the physical layout and components of the tGW-700 and GW-2200 series.

2.3 Dimensions

Provides detailed physical measurements for various module models.

2.4 Pin Assignments

Maps terminal numbers to specific signal assignments for different serial ports.

2.5 Wiring Notes for RS-232/485/422 Interfaces

Offers guidance on correctly connecting serial communication interfaces.

3. Getting Started for tGW-700 / GW-2200 Series using IPv4

3.1 Connecting the Power and Host PC

Covers initial setup steps for power and network connection.

3.2 Configuring Network Settings

Guides users through setting up IP addresses, subnet masks, and gateways.

3.3 Connecting the Modbus Devices

Explains how to connect serial Modbus devices to the gateway.

3.4 Configuring the Serial Port

Details the process of setting up serial port parameters via the web interface.

3.5 Self-Test

Describes a procedure to verify the correct operation of the gateway.

4. Getting Started for tGW-700 / GW-2200 Series using IPv6

4.1 Connecting the Power and Host PC

Covers initial setup steps for power and network connection using IPv6.

4.2 Configuring Network Settings

Guides users through setting up IPv6 network configurations.

4.3 Connecting the Modbus Devices

Explains how to connect serial Modbus devices for IPv6 configurations.

4.4 Configuring the Serial Port

Details setting up serial port parameters via the web interface for IPv6.

4.5 Self-Test

Describes a procedure to verify the correct operation using IPv6.

5. Web Configuration

5.1 Logging in to the tGW-700/GW-2200 Web Server

Provides steps to access and log into the device's web interface.

5.2 Home Page

Describes the main dashboard displaying hardware and software information.

5.3 Network Page

Covers network settings like IP address, subnet mask, and gateway configuration.

5.3.1 IP Address Selection

Explains static and dynamic IP configuration options for IPv4 and IPv6.

5.3.2 General Settings

Details parameters like Ethernet speed, HTTP port, alias, and timeouts.

5.3.3 Modbus Settings

Configures Modbus-specific parameters like exceptions and timeouts.

5.3.4 Restore Factory Defaults

Outlines the process to reset all device settings to their original factory defaults.

5.3.5 Update by Ethernet

Explains how to update the device firmware remotely via Ethernet.

5.4 Serial Port Page

Manages serial port settings such as baud rate, data format, and protocol.

5.4.1 Settings (Port1 Settings)

Configures specific parameters for the serial port, including interface and Modbus settings.

5.4.2 Settings (Pair-Connection Settings)

Sets up parameters for master/slave or client/server communication modes.

5.5 Filter Page

Allows configuration of an IP filter list to restrict access to the device.

5.6 Monitor Page

Displays the current status and statistics of serial port connections.

5.7 Password Page

Enables changing the login password for the web interface.

5.8 Logout Page

Describes the process of logging out from the web interface.

6. Typical Applications

6.1 Modbus Gateway

Illustrates the use of the module as a gateway between Modbus TCP and RTU/ASCII.

6.2 Modbus Net ID

Explains how to use Net IDs for accessing slave devices via the gateway.

6.3 Pair-connection Applications

Demonstrates creating serial-to-serial connections over Ethernet.

6.4 TCP Client Mode Applications

Shows how the device acts as a TCP client to connect to Modbus TCP slave devices.

7. Modbus Information

7.1 Modbus Message Structure

Details the byte-level structure of Modbus TCP and RTU messages.

7.2 Exception Codes

Lists and explains Modbus exception codes that may be returned by the device.

Appendix A: Troubleshooting

A1. How do I restore the web password for the module to the factory default password?

Provides step-by-step instructions to reset the web password to factory defaults.

Appendix B: Glossary

1. ARP (Address Resolution Protocol)

Defines the Address Resolution Protocol and its function in network communication.

2. Clients and Servers

Explains the client-server paradigm in network applications.

3. Ethernet

Provides a definition of the Ethernet networking technology.

4. Firmware

Defines firmware and its role in device operation and updates.

5. Gateway

Explains the function of gateways in interconnecting networks.

Appendix C: Actual Baud Rate Measurement

Appendix D: Revision History

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