Figure 3.24 Add device
2.
Double-click "ODOT-S4E2" or right-click "ODOT-S4E2", Select “common
device attributes”, set the gateway as the station number of the Modbus RTU/ASCII
slave on the popup setup page.
Figure 3.25 Set gateway working mode
3. Double-click "COM1", "COM2" or right-click "COM1", "COM2" and click "Serial
Port Properties", the "Serial Port Settings" window will pop up, set the communication
parameters, and set the working modes of both serial ports to slave Station mode, click the
"OK" button to save and return.
The meaning of each parameter is as follows
：
Operating mode
：
It is used to set up gateway as master station or slave station in the network.
Default is master mode. Here is set up slave mode.
Modbus protocol type
：
It is used to set up the gateway's protocol type of the network between the
communication of the serial port and other connected devices.You can choose Modbus RTU
or Modbus ASCII. Please keep this parameter in accord with the device that is connected to
the serial port.