B&B Electronics Vlinx MESR9xx - Manual (Page 23)

3. Setup and Connections Vlinx MESR9xx Modbus Gateway
Page 19 Manual Documentation Number MESR9xx-4508m
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Modbus gateway is configured as a TCP server. The socket program running on the PC
establishes a communication connection with the Modbus gateway. The data is sent
directly to and from the serial port on the server.
To set up a Direct IP Mode connection:
1. Connect the Modbus gateway to the network and a Modbus network as described in
previous sections.
2. Configure the Modbus gateway with the appropriate network settings (using Vlinx
Manager or the web interface).
3. Configure your software application with the appropriate IP address and port number
to communicate with the Modbus network(s).
Figure 19. Direct IP Connection
Initiating a Hardware Reset on the Modbus Gateway
To initiate a Hardware Reset on the Modbus gateway, press and hold the Mode switch
for 0 to 2 seconds, and then release it. The LED indicators respond as follows:
1. The Ready LED blinks three times per second while the button is being pressed.
2. The Modbus gateway is in Reset Mode when:
• On the MESR901: Port 1 LED is On and the Ready LED is Off.
• On MESR902x models: Port 1 LED is On and the Port 2 LED is Off.
3. The LEDs go back to their normal states when the device resumes normal operation.