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ICP DAS USA tGW-725i 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-725i Specifications

General IconGeneral
Product TypeI/O System
Product NametGW-725i
ManufacturerICP DAS USA
CategoryI/O Systems
Communication ProtocolsModbus TCP, Modbus RTU
Input Voltage12 to 30 VDC
Operating Temperature-25 ~ +75 °C
Serial Ports2

Summary

Introduction to tGW-700/GW-2200 Series

1.1 Features

Lists the capabilities and specifications of the tGW-700/GW-2200 series modules.

1.2 Applications

Outlines typical application areas such as factory and building automation.

1.3 Ethernet Solutions

Discusses the prevalence and benefits of Ethernet in industrial control networks.

1.4 Web Server Technology

Explains how web server technology simplifies the configuration of the module.

Hardware Information for tGW-700/GW-2200

2.1 Specifications

Tabular overview of technical specifications for various tGW/GW models.

2.2 Appearance

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

2.3 Dimensions

Provides diagrams showing the physical dimensions of tGW-700/GW-2200 modules in millimeters.

2.4 Pin Assignments

Details the pin configurations for the COM ports of tGW-712/712i and tGW-722/722i.

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

Explains the wiring procedures for RS-232, RS-422, and RS-485 serial interfaces.

Getting Started with IPv4

3.1 Connecting the Power and Host PC

Guides users on connecting the module and PC for initial setup.

3.2 Configuring Network Settings

Details how to configure network settings using the eSearch Utility and IP address.

3.3 Connecting the Modbus Devices

Explains how to connect Modbus devices to the tGW-700/GW-2200 module.

3.4 Configuring the Serial Port

Guides users on configuring serial port settings via the web interface.

3.5 Self-Test

Describes the self-test procedure to verify the module's correct operation.

Getting Started with IPv6

4.1 Connecting the Power and Host PC

Guides users on connecting the module and PC for initial setup with IPv6.

4.2 Configuring Network Settings

Details how to configure network settings using the eSearch Utility for IPv6.

4.3 Connecting the Modbus Devices

Explains how to connect Modbus devices to the tGW-700/GW-2200 module for IPv6.

4.4 Configuring the Serial Port

Guides users on configuring serial port settings via the web interface for IPv6.

4.5 Self-Test

Describes the self-test procedure to verify the module's correct operation in IPv6.

Web Configuration

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

Provides steps to access the module's web server interface.

5.2 Home Page

Describes the information presented on the module's main web server page.

5.3 Network Page

Details how to configure network settings like IP address and general parameters.

5.3.1 IP Address Selection

Covers static and dynamic IP configuration for the module.

5.3.2 General Settings

Explains various general configuration options like Ethernet speed and timeouts.

5.3.3 Modbus Settings

Details Modbus-specific configurations for the gateway.

5.3.4 Restore Factory Defaults

Outlines the procedure to reset the module to its factory default settings.

5.3.5 Update by Ethernet

Guides users on how to update the module's firmware via Ethernet.

5.4 Serial Port Page

Introduces the settings available for configuring serial ports.

5.4.1 Settings (Port1 Settings)

Details specific configuration parameters for serial Port 1.

5.4.2 Settings (Pair-Connection Settings)

Explains how to configure pair-connection settings for master/slave modes.

5.5 Filter Page

Describes how to configure IP filtering to restrict access to the module.

5.6 Monitor Page

Shows how to view the current connection status and serial port activity.

5.7 Password Page

Details how to change the module's login password.

Typical Applications of tGW-700/GW-2200

6.1 Modbus Gateway

Explains the role of the module as a Modbus TCP/UDP to RTU/ASCII gateway.

6.2 Modbus Net ID

Discusses the use of Modbus Net ID for accessing slave devices via the gateway.

6.3 Pair-connection Applications

Illustrates how to set up serial-bridge or serial-tunnel applications.

6.4 TCP Client Mode Applications

Explains how the module acts as a TCP client to connect to Modbus TCP slave devices.

Modbus Information and Protocol Details

7.1 Modbus Message Structure

Explains the structure of Modbus/TCP and RTU messages.

7.2 Exception Codes

Explains Modbus exception codes returned by slave devices.

Troubleshooting Common Issues

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

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

Glossary of Networking and Modbus Terms

1. ARP (Address Resolution Protocol)

Explains the ARP protocol used for mapping IP to MAC addresses.

3. Ethernet

Defines the Ethernet standard and its role in networking.

8. IP (Internet Protocol) Address

Defines IP addresses and their format in network communication.

14. Subnet Mask

Explains the function of a subnet mask in network addressing.

Actual Baud Rate Measurement Data

Document Revision History

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