1. Product Overview

2. Main Features

1. Support Modbus TCP/IP client and server dual working modes

2. Equipped with multi-channel independent configurable ASCII serial ports

3. Serial port supports RS-232, RS-422 and RS-485 interface selection

4. Flexible ASCII data frame configuration, customizable start character, end character and data length

5. Support timeout reception and fixed-length data receiving modes

6. Complete Modbus standard function codes access and data register mapping

7. Built-in communication error detection and automatic reconnection mechanism

8. Industrial isolation design with strong anti-electromagnetic interference capability

9. Support real-time online monitoring, parameter modification and fault diagnosis

10. Compact structure, easy installation and convenient later maintenance

3. Technical Specifications

3.1 Power Supply

3.2 Modbus TCP/IP Ethernet Interface

3.3 ASCII Serial Interface

3.4 Environmental Parameters

3.5 Physical Parameters

4. LED Status Indicators

5. Installation and Wiring Guide

1. Fix the gateway firmly on the DIN rail inside the control cabinet

2. Connect stable 24VDC power supply according to wiring specification

3. Connect Ethernet cable to RJ45 port to access Modbus TCP network system

4. Connect field ASCII serial devices to serial terminal ports correctly

5. Use professional configuration software to set Ethernet IP address and serial communication parameters

6. Configure ASCII data receiving and transmitting rules and Modbus register mapping relation

7. Download all configuration parameters and complete network communication debugging

6. Communication Function Description

1. Convert Modbus TCP network data into ASCII strings and send to serial devices

2. Receive ASCII data uploaded by field serial devices and convert into Modbus register data

3. Realize remote reading of measuring data from various serial intelligent instruments

4. Send remote control commands to serial terminal equipment through Ethernet system

5. Support transparent transmission of serial data and customized protocol parsing

7. Application Scope

1. Industrial field serial intelligent instrument network access

2. Factory automation equipment serial barcode scanner and printer docking

3. Environmental protection online monitoring equipment data acquisition system

4. Logistics weighing equipment and industrial control Ethernet system interconnection

5. Building automation serial control equipment protocol conversion

6. Old serial equipment renovation and Ethernet network upgrading project

8. Safety Operation Notes

1. All wiring operations must be carried out under power-off state

2. Use shielded cables for serial signal lines to improve communication stability

3. Do not operate the device beyond the specified voltage and temperature range

4. Set reasonable serial parameters to ensure consistent communication parameters of peer devices

5. Regularly check line connection status and equipment heat dissipation environment

6. Professional technical personnel shall complete protocol configuration and network debugging