(I)GW11XX Modbus User Manual
3onedata proprietary and confidential 42
Copyright © Shenzhen 3onedata Technology Co., Ltd.
The parameters of the ASCII master are as follows:
Communication port: COM3
Baud rate: 115200
Parity bit: None
Data bit: 7
Stop bit: 2
The parameters of the TCP slave are as follows:
IP address: 192.168.1.80
Slave ID: 3
TCP port number: 503
Operation steps
The screenshot reference model for this manual is GW1108-8D (3IN1) Modbus. Other
types of products in addition to supporting the serial type (RS-232, RS-422, RS-485), and
the number of network ports and the number of serial ports are different, the interftions are
the same.
Connect the COM serial port of the computer and the COM3 serial port of the Modbus
Step 1
gateway using a cable or a converter.
Configure the IP address of the Modbus gateway.
Step 2
1. Log in to the Web configuration interface and select "Network Setting".
2. In the "Use the following IP address" option box, enter the "IP address", "Subnet
Mask" and "Gateway address" corresponding to the Modbus gateway.
3. Other parameters remain the default, click "submit".
Configure the serial port parameter information.
Step 3
1. Log in to the Web configuration interface and select "Main Menu > Serial Settings>
COM Settings ".