1. Product Overview

2. Main Features

1. Fully comply with standard EtherNet/IP communication protocol

2. Built-in standard DH485 serial communication protocol stack

3. Support DH485 master and slave working modes

4. Support multi-station communication on DH485 bus network

5. Flexible data address mapping, convenient register data mutual transmission

6. Industrial isolation design, effectively resist on-site electromagnetic interference

7. Support common DH485 old PLC and man-machine panel access

8. Simple parameter configuration, fast network debugging

9. Complete communication fault diagnosis and automatic reconnection function

10. Compact structure, easy installation and maintenance

3. Technical Specifications

3.1 Power Supply

3.2 EtherNet/IP Interface

3.3 DH485 Serial Interface

3.4 Environmental Parameters

3.5 Physical Parameters

4. LED Status Definition

5. Installation and Wiring Instructions

1. Install the gateway firmly on the control cabinet DIN rail

2. Connect 24 VDC DC power supply correctly according to wiring requirements

3. Connect EtherNet/IP network cable to Ethernet port to connect upper PLC system

4. Connect DH485 communication cable to serial interface and access old field equipment

5. Use special configuration software to set network parameters and serial communication parameters

6. Configure internal data mapping relationship to realize data interaction

7. After confirming no error, power on and debug network communication

6. Communication Function

1. Realize EtherNet/IP system reading DH485 equipment register data

2. Send control commands from EtherNet/IP main control end to DH485 field equipment

3. Realize unified monitoring and centralized control of new and old automation equipment

4. Support real-time uploading of equipment operating status and fault information

5. Automatically identify bus equipment and ensure stable long-term communication

7. Application Scope

1. Transformation and upgrading of old AB DH485 PLC control system

2. Data interconnection between new EtherNet/IP PLC and old man-machine touch screen

3. Production line old equipment network reconstruction project

4. Automobile, machinery manufacturing industry old workshop system integration

5. Water treatment, metallurgy and other industries legacy equipment communication docking

6. Multi-generation automation equipment mixed networking unified management scheme

8. Safety Notes

1. All wiring operations must be completed in power-off state

2. Use shielded twisted pair wires for DH485 bus wiring

3. Do not exceed the specified working voltage and ambient temperature range

4. Reasonably set communication baud rate and station address to avoid bus conflict

5. Regularly check wiring looseness and equipment heat dissipation condition

6. Professional technicians are recommended to complete protocol configuration and debugging work